Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method
Bulk nanocrystalline TiO2 samples (100% rutile) with a relative density as high as 97% and a grain size of <20 nm have been produced via high-pressure (up to 8 GPa)/low-temperature (∼0.3Tm, where Tm is the melting temperature) sintering, using a toroidal-type high-pressure apparatus. Nanophase Ti...
Ausführliche Beschreibung
Autor*in: |
Liao, Shih-Chieh [verfasserIn] Colaizzi, James [verfasserIn] Chen, Yijia [verfasserIn] |
---|
Format: |
E-Artikel |
---|
Erschienen: |
Westerville, Ohio: American Ceramics Society ; 2000 |
---|
Schlagwörter: |
---|
Umfang: |
Online-Ressource |
---|
Reproduktion: |
2004 ; Blackwell Publishing Journal Backfiles 1879-2005 |
---|---|
Übergeordnetes Werk: |
In: Journal of the American Ceramic Society - American Ceramic Society ; GKD-ID: 6113X, Oxford [u.a.] : Wiley-Blackwell, 1918, 83(2000), 9, Seite 0 |
Übergeordnetes Werk: |
volume:83 ; year:2000 ; number:9 ; pages:0 |
Links: |
---|
DOI / URN: |
10.1111/j.1151-2916.2000.tb01530.x |
---|
Katalog-ID: |
NLEJ243469853 |
---|
LEADER | 01000caa a22002652 4500 | ||
---|---|---|---|
001 | NLEJ243469853 | ||
003 | DE-627 | ||
005 | 20210707181523.0 | ||
007 | cr uuu---uuuuu | ||
008 | 120427s2000 xx |||||o 00| ||und c | ||
024 | 7 | |a 10.1111/j.1151-2916.2000.tb01530.x |2 doi | |
035 | |a (DE-627)NLEJ243469853 | ||
040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
100 | 1 | |a Liao, Shih-Chieh |e verfasserin |4 aut | |
245 | 1 | 0 | |a Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method |
264 | 1 | |a Westerville, Ohio |b American Ceramics Society |c 2000 | |
300 | |a Online-Ressource | ||
336 | |a nicht spezifiziert |b zzz |2 rdacontent | ||
337 | |a nicht spezifiziert |b z |2 rdamedia | ||
338 | |a nicht spezifiziert |b zu |2 rdacarrier | ||
520 | |a Bulk nanocrystalline TiO2 samples (100% rutile) with a relative density as high as 97% and a grain size of <20 nm have been produced via high-pressure (up to 8 GPa)/low-temperature (∼0.3Tm, where Tm is the melting temperature) sintering, using a toroidal-type high-pressure apparatus. Nanophase TiO2 powder with a metastable anatase structure and an initial grain size of ∼38 nm was used as the starting material. During sintering, the anatase phase transformed to either the rutile or srilankite phase, depending on the pressure–temperature (P–T) combination. The starting temperature of the anatase-to-rutile phase transformation decreased from ∼550°C at ambient pressure to ∼150°C at 2.5 GPa. Grain growth was limited by the low sintering temperature and the multiple nucleation events in the parent phase. The grain size of the transformed rutile decreased as the sintering pressure increased, which can be explained by the combined effect of increasing the nucleation rate and decreasing the growth rate with high pressure. We have demonstrated that it is possible to produce a dense sintered compact with a grain size even smaller than that of the starting powder. The high-pressure srilankite phase was observed at P–T conditions as low as 4.75 GPa and 250°C, respectively; however, unlike the anatase-to-rutile phase transformation, the rutile-to-srilankite phase-transformation temperature increased as the pressure increased. Also, in contrast to the irreversible anatase-to-rutile phase transformation, the srilankite will reversibly transform to rutile under the appropriate circumstances. This observation provides an opportunity to further refine the TiO2 grain structure by switching the sintering conditions (temperature and pressure) between the regions in which the rutile or srilankite phase are stable. | ||
533 | |d 2004 |f Blackwell Publishing Journal Backfiles 1879-2005 |7 |2004|||||||||| | ||
650 | 4 | |a titanium oxide | |
700 | 1 | |a Colaizzi, James |e verfasserin |4 aut | |
700 | 1 | |a Chen, Yijia |e verfasserin |4 aut | |
700 | 1 | |a Kear, Bernard H. |4 oth | |
700 | 1 | |a Mayo, William E. |4 oth | |
773 | 0 | 8 | |i In |a American Ceramic Society ; GKD-ID: 6113X |t Journal of the American Ceramic Society |d Oxford [u.a.] : Wiley-Blackwell, 1918 |g 83(2000), 9, Seite 0 |h Online-Ressource |w (DE-627)NLEJ243927835 |w (DE-600)2008170-4 |x 1551-2916 |7 nnns |
773 | 1 | 8 | |g volume:83 |g year:2000 |g number:9 |g pages:0 |
856 | 4 | 0 | |u http://dx.doi.org/10.1111/j.1151-2916.2000.tb01530.x |q text/html |x Verlag |z Deutschlandweit zugänglich |3 Volltext |
912 | |a GBV_USEFLAG_U | ||
912 | |a ZDB-1-DJB | ||
912 | |a GBV_NL_ARTICLE | ||
951 | |a AR | ||
952 | |d 83 |j 2000 |e 9 |h 0 |
author_variant |
s c l scl j c jc y c yc |
---|---|
matchkey_str |
article:15512916:2000----::eieetfaoclgantutriblttnaiarnfrainsit |
hierarchy_sort_str |
2000 |
publishDate |
2000 |
allfields |
10.1111/j.1151-2916.2000.tb01530.x doi (DE-627)NLEJ243469853 DE-627 ger DE-627 rakwb Liao, Shih-Chieh verfasserin aut Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method Westerville, Ohio American Ceramics Society 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Bulk nanocrystalline TiO2 samples (100% rutile) with a relative density as high as 97% and a grain size of <20 nm have been produced via high-pressure (up to 8 GPa)/low-temperature (∼0.3Tm, where Tm is the melting temperature) sintering, using a toroidal-type high-pressure apparatus. Nanophase TiO2 powder with a metastable anatase structure and an initial grain size of ∼38 nm was used as the starting material. During sintering, the anatase phase transformed to either the rutile or srilankite phase, depending on the pressure–temperature (P–T) combination. The starting temperature of the anatase-to-rutile phase transformation decreased from ∼550°C at ambient pressure to ∼150°C at 2.5 GPa. Grain growth was limited by the low sintering temperature and the multiple nucleation events in the parent phase. The grain size of the transformed rutile decreased as the sintering pressure increased, which can be explained by the combined effect of increasing the nucleation rate and decreasing the growth rate with high pressure. We have demonstrated that it is possible to produce a dense sintered compact with a grain size even smaller than that of the starting powder. The high-pressure srilankite phase was observed at P–T conditions as low as 4.75 GPa and 250°C, respectively; however, unlike the anatase-to-rutile phase transformation, the rutile-to-srilankite phase-transformation temperature increased as the pressure increased. Also, in contrast to the irreversible anatase-to-rutile phase transformation, the srilankite will reversibly transform to rutile under the appropriate circumstances. This observation provides an opportunity to further refine the TiO2 grain structure by switching the sintering conditions (temperature and pressure) between the regions in which the rutile or srilankite phase are stable. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| titanium oxide Colaizzi, James verfasserin aut Chen, Yijia verfasserin aut Kear, Bernard H. oth Mayo, William E. oth In American Ceramic Society ; GKD-ID: 6113X Journal of the American Ceramic Society Oxford [u.a.] : Wiley-Blackwell, 1918 83(2000), 9, Seite 0 Online-Ressource (DE-627)NLEJ243927835 (DE-600)2008170-4 1551-2916 nnns volume:83 year:2000 number:9 pages:0 http://dx.doi.org/10.1111/j.1151-2916.2000.tb01530.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 83 2000 9 0 |
spelling |
10.1111/j.1151-2916.2000.tb01530.x doi (DE-627)NLEJ243469853 DE-627 ger DE-627 rakwb Liao, Shih-Chieh verfasserin aut Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method Westerville, Ohio American Ceramics Society 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Bulk nanocrystalline TiO2 samples (100% rutile) with a relative density as high as 97% and a grain size of <20 nm have been produced via high-pressure (up to 8 GPa)/low-temperature (∼0.3Tm, where Tm is the melting temperature) sintering, using a toroidal-type high-pressure apparatus. Nanophase TiO2 powder with a metastable anatase structure and an initial grain size of ∼38 nm was used as the starting material. During sintering, the anatase phase transformed to either the rutile or srilankite phase, depending on the pressure–temperature (P–T) combination. The starting temperature of the anatase-to-rutile phase transformation decreased from ∼550°C at ambient pressure to ∼150°C at 2.5 GPa. Grain growth was limited by the low sintering temperature and the multiple nucleation events in the parent phase. The grain size of the transformed rutile decreased as the sintering pressure increased, which can be explained by the combined effect of increasing the nucleation rate and decreasing the growth rate with high pressure. We have demonstrated that it is possible to produce a dense sintered compact with a grain size even smaller than that of the starting powder. The high-pressure srilankite phase was observed at P–T conditions as low as 4.75 GPa and 250°C, respectively; however, unlike the anatase-to-rutile phase transformation, the rutile-to-srilankite phase-transformation temperature increased as the pressure increased. Also, in contrast to the irreversible anatase-to-rutile phase transformation, the srilankite will reversibly transform to rutile under the appropriate circumstances. This observation provides an opportunity to further refine the TiO2 grain structure by switching the sintering conditions (temperature and pressure) between the regions in which the rutile or srilankite phase are stable. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| titanium oxide Colaizzi, James verfasserin aut Chen, Yijia verfasserin aut Kear, Bernard H. oth Mayo, William E. oth In American Ceramic Society ; GKD-ID: 6113X Journal of the American Ceramic Society Oxford [u.a.] : Wiley-Blackwell, 1918 83(2000), 9, Seite 0 Online-Ressource (DE-627)NLEJ243927835 (DE-600)2008170-4 1551-2916 nnns volume:83 year:2000 number:9 pages:0 http://dx.doi.org/10.1111/j.1151-2916.2000.tb01530.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 83 2000 9 0 |
allfields_unstemmed |
10.1111/j.1151-2916.2000.tb01530.x doi (DE-627)NLEJ243469853 DE-627 ger DE-627 rakwb Liao, Shih-Chieh verfasserin aut Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method Westerville, Ohio American Ceramics Society 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Bulk nanocrystalline TiO2 samples (100% rutile) with a relative density as high as 97% and a grain size of <20 nm have been produced via high-pressure (up to 8 GPa)/low-temperature (∼0.3Tm, where Tm is the melting temperature) sintering, using a toroidal-type high-pressure apparatus. Nanophase TiO2 powder with a metastable anatase structure and an initial grain size of ∼38 nm was used as the starting material. During sintering, the anatase phase transformed to either the rutile or srilankite phase, depending on the pressure–temperature (P–T) combination. The starting temperature of the anatase-to-rutile phase transformation decreased from ∼550°C at ambient pressure to ∼150°C at 2.5 GPa. Grain growth was limited by the low sintering temperature and the multiple nucleation events in the parent phase. The grain size of the transformed rutile decreased as the sintering pressure increased, which can be explained by the combined effect of increasing the nucleation rate and decreasing the growth rate with high pressure. We have demonstrated that it is possible to produce a dense sintered compact with a grain size even smaller than that of the starting powder. The high-pressure srilankite phase was observed at P–T conditions as low as 4.75 GPa and 250°C, respectively; however, unlike the anatase-to-rutile phase transformation, the rutile-to-srilankite phase-transformation temperature increased as the pressure increased. Also, in contrast to the irreversible anatase-to-rutile phase transformation, the srilankite will reversibly transform to rutile under the appropriate circumstances. This observation provides an opportunity to further refine the TiO2 grain structure by switching the sintering conditions (temperature and pressure) between the regions in which the rutile or srilankite phase are stable. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| titanium oxide Colaizzi, James verfasserin aut Chen, Yijia verfasserin aut Kear, Bernard H. oth Mayo, William E. oth In American Ceramic Society ; GKD-ID: 6113X Journal of the American Ceramic Society Oxford [u.a.] : Wiley-Blackwell, 1918 83(2000), 9, Seite 0 Online-Ressource (DE-627)NLEJ243927835 (DE-600)2008170-4 1551-2916 nnns volume:83 year:2000 number:9 pages:0 http://dx.doi.org/10.1111/j.1151-2916.2000.tb01530.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 83 2000 9 0 |
allfieldsGer |
10.1111/j.1151-2916.2000.tb01530.x doi (DE-627)NLEJ243469853 DE-627 ger DE-627 rakwb Liao, Shih-Chieh verfasserin aut Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method Westerville, Ohio American Ceramics Society 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Bulk nanocrystalline TiO2 samples (100% rutile) with a relative density as high as 97% and a grain size of <20 nm have been produced via high-pressure (up to 8 GPa)/low-temperature (∼0.3Tm, where Tm is the melting temperature) sintering, using a toroidal-type high-pressure apparatus. Nanophase TiO2 powder with a metastable anatase structure and an initial grain size of ∼38 nm was used as the starting material. During sintering, the anatase phase transformed to either the rutile or srilankite phase, depending on the pressure–temperature (P–T) combination. The starting temperature of the anatase-to-rutile phase transformation decreased from ∼550°C at ambient pressure to ∼150°C at 2.5 GPa. Grain growth was limited by the low sintering temperature and the multiple nucleation events in the parent phase. The grain size of the transformed rutile decreased as the sintering pressure increased, which can be explained by the combined effect of increasing the nucleation rate and decreasing the growth rate with high pressure. We have demonstrated that it is possible to produce a dense sintered compact with a grain size even smaller than that of the starting powder. The high-pressure srilankite phase was observed at P–T conditions as low as 4.75 GPa and 250°C, respectively; however, unlike the anatase-to-rutile phase transformation, the rutile-to-srilankite phase-transformation temperature increased as the pressure increased. Also, in contrast to the irreversible anatase-to-rutile phase transformation, the srilankite will reversibly transform to rutile under the appropriate circumstances. This observation provides an opportunity to further refine the TiO2 grain structure by switching the sintering conditions (temperature and pressure) between the regions in which the rutile or srilankite phase are stable. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| titanium oxide Colaizzi, James verfasserin aut Chen, Yijia verfasserin aut Kear, Bernard H. oth Mayo, William E. oth In American Ceramic Society ; GKD-ID: 6113X Journal of the American Ceramic Society Oxford [u.a.] : Wiley-Blackwell, 1918 83(2000), 9, Seite 0 Online-Ressource (DE-627)NLEJ243927835 (DE-600)2008170-4 1551-2916 nnns volume:83 year:2000 number:9 pages:0 http://dx.doi.org/10.1111/j.1151-2916.2000.tb01530.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 83 2000 9 0 |
allfieldsSound |
10.1111/j.1151-2916.2000.tb01530.x doi (DE-627)NLEJ243469853 DE-627 ger DE-627 rakwb Liao, Shih-Chieh verfasserin aut Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method Westerville, Ohio American Ceramics Society 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Bulk nanocrystalline TiO2 samples (100% rutile) with a relative density as high as 97% and a grain size of <20 nm have been produced via high-pressure (up to 8 GPa)/low-temperature (∼0.3Tm, where Tm is the melting temperature) sintering, using a toroidal-type high-pressure apparatus. Nanophase TiO2 powder with a metastable anatase structure and an initial grain size of ∼38 nm was used as the starting material. During sintering, the anatase phase transformed to either the rutile or srilankite phase, depending on the pressure–temperature (P–T) combination. The starting temperature of the anatase-to-rutile phase transformation decreased from ∼550°C at ambient pressure to ∼150°C at 2.5 GPa. Grain growth was limited by the low sintering temperature and the multiple nucleation events in the parent phase. The grain size of the transformed rutile decreased as the sintering pressure increased, which can be explained by the combined effect of increasing the nucleation rate and decreasing the growth rate with high pressure. We have demonstrated that it is possible to produce a dense sintered compact with a grain size even smaller than that of the starting powder. The high-pressure srilankite phase was observed at P–T conditions as low as 4.75 GPa and 250°C, respectively; however, unlike the anatase-to-rutile phase transformation, the rutile-to-srilankite phase-transformation temperature increased as the pressure increased. Also, in contrast to the irreversible anatase-to-rutile phase transformation, the srilankite will reversibly transform to rutile under the appropriate circumstances. This observation provides an opportunity to further refine the TiO2 grain structure by switching the sintering conditions (temperature and pressure) between the regions in which the rutile or srilankite phase are stable. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| titanium oxide Colaizzi, James verfasserin aut Chen, Yijia verfasserin aut Kear, Bernard H. oth Mayo, William E. oth In American Ceramic Society ; GKD-ID: 6113X Journal of the American Ceramic Society Oxford [u.a.] : Wiley-Blackwell, 1918 83(2000), 9, Seite 0 Online-Ressource (DE-627)NLEJ243927835 (DE-600)2008170-4 1551-2916 nnns volume:83 year:2000 number:9 pages:0 http://dx.doi.org/10.1111/j.1151-2916.2000.tb01530.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 83 2000 9 0 |
source |
In Journal of the American Ceramic Society 83(2000), 9, Seite 0 volume:83 year:2000 number:9 pages:0 |
sourceStr |
In Journal of the American Ceramic Society 83(2000), 9, Seite 0 volume:83 year:2000 number:9 pages:0 |
format_phy_str_mv |
Article |
institution |
findex.gbv.de |
topic_facet |
titanium oxide |
isfreeaccess_bool |
false |
container_title |
Journal of the American Ceramic Society |
authorswithroles_txt_mv |
Liao, Shih-Chieh @@aut@@ Colaizzi, James @@aut@@ Chen, Yijia @@aut@@ Kear, Bernard H. @@oth@@ Mayo, William E. @@oth@@ |
publishDateDaySort_date |
2000-01-01T00:00:00Z |
hierarchy_top_id |
NLEJ243927835 |
id |
NLEJ243469853 |
fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ243469853</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210707181523.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">120427s2000 xx |||||o 00| ||und c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1111/j.1151-2916.2000.tb01530.x</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ243469853</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Liao, Shih-Chieh</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Westerville, Ohio</subfield><subfield code="b">American Ceramics Society</subfield><subfield code="c">2000</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Bulk nanocrystalline TiO2 samples (100% rutile) with a relative density as high as 97% and a grain size of <20 nm have been produced via high-pressure (up to 8 GPa)/low-temperature (∼0.3Tm, where Tm is the melting temperature) sintering, using a toroidal-type high-pressure apparatus. Nanophase TiO2 powder with a metastable anatase structure and an initial grain size of ∼38 nm was used as the starting material. During sintering, the anatase phase transformed to either the rutile or srilankite phase, depending on the pressure–temperature (P–T) combination. The starting temperature of the anatase-to-rutile phase transformation decreased from ∼550°C at ambient pressure to ∼150°C at 2.5 GPa. Grain growth was limited by the low sintering temperature and the multiple nucleation events in the parent phase. The grain size of the transformed rutile decreased as the sintering pressure increased, which can be explained by the combined effect of increasing the nucleation rate and decreasing the growth rate with high pressure. We have demonstrated that it is possible to produce a dense sintered compact with a grain size even smaller than that of the starting powder. The high-pressure srilankite phase was observed at P–T conditions as low as 4.75 GPa and 250°C, respectively; however, unlike the anatase-to-rutile phase transformation, the rutile-to-srilankite phase-transformation temperature increased as the pressure increased. Also, in contrast to the irreversible anatase-to-rutile phase transformation, the srilankite will reversibly transform to rutile under the appropriate circumstances. This observation provides an opportunity to further refine the TiO2 grain structure by switching the sintering conditions (temperature and pressure) between the regions in which the rutile or srilankite phase are stable.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="d">2004</subfield><subfield code="f">Blackwell Publishing Journal Backfiles 1879-2005</subfield><subfield code="7">|2004||||||||||</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">titanium oxide</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Colaizzi, James</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chen, Yijia</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kear, Bernard H.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mayo, William E.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">In</subfield><subfield code="a">American Ceramic Society ; GKD-ID: 6113X</subfield><subfield code="t">Journal of the American Ceramic Society</subfield><subfield code="d">Oxford [u.a.] : Wiley-Blackwell, 1918</subfield><subfield code="g">83(2000), 9, Seite 0</subfield><subfield code="h">Online-Ressource</subfield><subfield code="w">(DE-627)NLEJ243927835</subfield><subfield code="w">(DE-600)2008170-4</subfield><subfield code="x">1551-2916</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:83</subfield><subfield code="g">year:2000</subfield><subfield code="g">number:9</subfield><subfield code="g">pages:0</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://dx.doi.org/10.1111/j.1151-2916.2000.tb01530.x</subfield><subfield code="q">text/html</subfield><subfield code="x">Verlag</subfield><subfield code="z">Deutschlandweit zugänglich</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-DJB</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">83</subfield><subfield code="j">2000</subfield><subfield code="e">9</subfield><subfield code="h">0</subfield></datafield></record></collection>
|
series2 |
Blackwell Publishing Journal Backfiles 1879-2005 |
author |
Liao, Shih-Chieh |
spellingShingle |
Liao, Shih-Chieh misc titanium oxide Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method |
authorStr |
Liao, Shih-Chieh |
ppnlink_with_tag_str_mv |
@@773@@(DE-627)NLEJ243927835 |
format |
electronic Article |
delete_txt_mv |
keep |
author_role |
aut aut aut |
collection |
NL |
publishPlace |
Westerville, Ohio |
remote_str |
true |
illustrated |
Not Illustrated |
issn |
1551-2916 |
topic_title |
Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method titanium oxide |
publisher |
American Ceramics Society |
publisherStr |
American Ceramics Society |
topic |
misc titanium oxide |
topic_unstemmed |
misc titanium oxide |
topic_browse |
misc titanium oxide |
format_facet |
Elektronische Aufsätze Aufsätze Elektronische Ressource |
format_main_str_mv |
Text Zeitschrift/Artikel |
carriertype_str_mv |
zu |
author2_variant |
b h k bh bhk w e m we wem |
hierarchy_parent_title |
Journal of the American Ceramic Society |
hierarchy_parent_id |
NLEJ243927835 |
hierarchy_top_title |
Journal of the American Ceramic Society |
isfreeaccess_txt |
false |
familylinks_str_mv |
(DE-627)NLEJ243927835 (DE-600)2008170-4 |
title |
Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method |
ctrlnum |
(DE-627)NLEJ243469853 |
title_full |
Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method |
author_sort |
Liao, Shih-Chieh |
journal |
Journal of the American Ceramic Society |
journalStr |
Journal of the American Ceramic Society |
isOA_bool |
false |
recordtype |
marc |
publishDateSort |
2000 |
contenttype_str_mv |
zzz |
container_start_page |
0 |
author_browse |
Liao, Shih-Chieh Colaizzi, James Chen, Yijia |
container_volume |
83 |
physical |
Online-Ressource |
format_se |
Elektronische Aufsätze |
author-letter |
Liao, Shih-Chieh |
doi_str_mv |
10.1111/j.1151-2916.2000.tb01530.x |
author2-role |
verfasserin |
title_sort |
refinement of nanoscale grain structure in bulk titania via a transformation-assisted consolidation (tac) method |
title_auth |
Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method |
abstract |
Bulk nanocrystalline TiO2 samples (100% rutile) with a relative density as high as 97% and a grain size of <20 nm have been produced via high-pressure (up to 8 GPa)/low-temperature (∼0.3Tm, where Tm is the melting temperature) sintering, using a toroidal-type high-pressure apparatus. Nanophase TiO2 powder with a metastable anatase structure and an initial grain size of ∼38 nm was used as the starting material. During sintering, the anatase phase transformed to either the rutile or srilankite phase, depending on the pressure–temperature (P–T) combination. The starting temperature of the anatase-to-rutile phase transformation decreased from ∼550°C at ambient pressure to ∼150°C at 2.5 GPa. Grain growth was limited by the low sintering temperature and the multiple nucleation events in the parent phase. The grain size of the transformed rutile decreased as the sintering pressure increased, which can be explained by the combined effect of increasing the nucleation rate and decreasing the growth rate with high pressure. We have demonstrated that it is possible to produce a dense sintered compact with a grain size even smaller than that of the starting powder. The high-pressure srilankite phase was observed at P–T conditions as low as 4.75 GPa and 250°C, respectively; however, unlike the anatase-to-rutile phase transformation, the rutile-to-srilankite phase-transformation temperature increased as the pressure increased. Also, in contrast to the irreversible anatase-to-rutile phase transformation, the srilankite will reversibly transform to rutile under the appropriate circumstances. This observation provides an opportunity to further refine the TiO2 grain structure by switching the sintering conditions (temperature and pressure) between the regions in which the rutile or srilankite phase are stable. |
abstractGer |
Bulk nanocrystalline TiO2 samples (100% rutile) with a relative density as high as 97% and a grain size of <20 nm have been produced via high-pressure (up to 8 GPa)/low-temperature (∼0.3Tm, where Tm is the melting temperature) sintering, using a toroidal-type high-pressure apparatus. Nanophase TiO2 powder with a metastable anatase structure and an initial grain size of ∼38 nm was used as the starting material. During sintering, the anatase phase transformed to either the rutile or srilankite phase, depending on the pressure–temperature (P–T) combination. The starting temperature of the anatase-to-rutile phase transformation decreased from ∼550°C at ambient pressure to ∼150°C at 2.5 GPa. Grain growth was limited by the low sintering temperature and the multiple nucleation events in the parent phase. The grain size of the transformed rutile decreased as the sintering pressure increased, which can be explained by the combined effect of increasing the nucleation rate and decreasing the growth rate with high pressure. We have demonstrated that it is possible to produce a dense sintered compact with a grain size even smaller than that of the starting powder. The high-pressure srilankite phase was observed at P–T conditions as low as 4.75 GPa and 250°C, respectively; however, unlike the anatase-to-rutile phase transformation, the rutile-to-srilankite phase-transformation temperature increased as the pressure increased. Also, in contrast to the irreversible anatase-to-rutile phase transformation, the srilankite will reversibly transform to rutile under the appropriate circumstances. This observation provides an opportunity to further refine the TiO2 grain structure by switching the sintering conditions (temperature and pressure) between the regions in which the rutile or srilankite phase are stable. |
abstract_unstemmed |
Bulk nanocrystalline TiO2 samples (100% rutile) with a relative density as high as 97% and a grain size of <20 nm have been produced via high-pressure (up to 8 GPa)/low-temperature (∼0.3Tm, where Tm is the melting temperature) sintering, using a toroidal-type high-pressure apparatus. Nanophase TiO2 powder with a metastable anatase structure and an initial grain size of ∼38 nm was used as the starting material. During sintering, the anatase phase transformed to either the rutile or srilankite phase, depending on the pressure–temperature (P–T) combination. The starting temperature of the anatase-to-rutile phase transformation decreased from ∼550°C at ambient pressure to ∼150°C at 2.5 GPa. Grain growth was limited by the low sintering temperature and the multiple nucleation events in the parent phase. The grain size of the transformed rutile decreased as the sintering pressure increased, which can be explained by the combined effect of increasing the nucleation rate and decreasing the growth rate with high pressure. We have demonstrated that it is possible to produce a dense sintered compact with a grain size even smaller than that of the starting powder. The high-pressure srilankite phase was observed at P–T conditions as low as 4.75 GPa and 250°C, respectively; however, unlike the anatase-to-rutile phase transformation, the rutile-to-srilankite phase-transformation temperature increased as the pressure increased. Also, in contrast to the irreversible anatase-to-rutile phase transformation, the srilankite will reversibly transform to rutile under the appropriate circumstances. This observation provides an opportunity to further refine the TiO2 grain structure by switching the sintering conditions (temperature and pressure) between the regions in which the rutile or srilankite phase are stable. |
collection_details |
GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE |
container_issue |
9 |
title_short |
Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method |
url |
http://dx.doi.org/10.1111/j.1151-2916.2000.tb01530.x |
remote_bool |
true |
author2 |
Colaizzi, James Chen, Yijia Kear, Bernard H. Mayo, William E. |
author2Str |
Colaizzi, James Chen, Yijia Kear, Bernard H. Mayo, William E. |
ppnlink |
NLEJ243927835 |
mediatype_str_mv |
z |
isOA_txt |
false |
hochschulschrift_bool |
false |
author2_role |
oth oth |
doi_str |
10.1111/j.1151-2916.2000.tb01530.x |
up_date |
2024-07-06T05:33:35.505Z |
_version_ |
1803806588802170880 |
fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ243469853</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210707181523.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">120427s2000 xx |||||o 00| ||und c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1111/j.1151-2916.2000.tb01530.x</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ243469853</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Liao, Shih-Chieh</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Refinement of Nanoscale Grain Structure in Bulk Titania via a Transformation-Assisted Consolidation (TAC) Method</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Westerville, Ohio</subfield><subfield code="b">American Ceramics Society</subfield><subfield code="c">2000</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Bulk nanocrystalline TiO2 samples (100% rutile) with a relative density as high as 97% and a grain size of <20 nm have been produced via high-pressure (up to 8 GPa)/low-temperature (∼0.3Tm, where Tm is the melting temperature) sintering, using a toroidal-type high-pressure apparatus. Nanophase TiO2 powder with a metastable anatase structure and an initial grain size of ∼38 nm was used as the starting material. During sintering, the anatase phase transformed to either the rutile or srilankite phase, depending on the pressure–temperature (P–T) combination. The starting temperature of the anatase-to-rutile phase transformation decreased from ∼550°C at ambient pressure to ∼150°C at 2.5 GPa. Grain growth was limited by the low sintering temperature and the multiple nucleation events in the parent phase. The grain size of the transformed rutile decreased as the sintering pressure increased, which can be explained by the combined effect of increasing the nucleation rate and decreasing the growth rate with high pressure. We have demonstrated that it is possible to produce a dense sintered compact with a grain size even smaller than that of the starting powder. The high-pressure srilankite phase was observed at P–T conditions as low as 4.75 GPa and 250°C, respectively; however, unlike the anatase-to-rutile phase transformation, the rutile-to-srilankite phase-transformation temperature increased as the pressure increased. Also, in contrast to the irreversible anatase-to-rutile phase transformation, the srilankite will reversibly transform to rutile under the appropriate circumstances. This observation provides an opportunity to further refine the TiO2 grain structure by switching the sintering conditions (temperature and pressure) between the regions in which the rutile or srilankite phase are stable.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="d">2004</subfield><subfield code="f">Blackwell Publishing Journal Backfiles 1879-2005</subfield><subfield code="7">|2004||||||||||</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">titanium oxide</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Colaizzi, James</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chen, Yijia</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kear, Bernard H.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mayo, William E.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">In</subfield><subfield code="a">American Ceramic Society ; GKD-ID: 6113X</subfield><subfield code="t">Journal of the American Ceramic Society</subfield><subfield code="d">Oxford [u.a.] : Wiley-Blackwell, 1918</subfield><subfield code="g">83(2000), 9, Seite 0</subfield><subfield code="h">Online-Ressource</subfield><subfield code="w">(DE-627)NLEJ243927835</subfield><subfield code="w">(DE-600)2008170-4</subfield><subfield code="x">1551-2916</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:83</subfield><subfield code="g">year:2000</subfield><subfield code="g">number:9</subfield><subfield code="g">pages:0</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://dx.doi.org/10.1111/j.1151-2916.2000.tb01530.x</subfield><subfield code="q">text/html</subfield><subfield code="x">Verlag</subfield><subfield code="z">Deutschlandweit zugänglich</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-DJB</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">83</subfield><subfield code="j">2000</subfield><subfield code="e">9</subfield><subfield code="h">0</subfield></datafield></record></collection>
|
score |
7.3983192 |