Temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite

Abstract Mullite whiskers were successfully synthesized using coal fly ash, andalusite-sericite phyllite, $ NH_{4} $Al($ SO_{4} $)2·$ 12H_{2} $O and $ SiO_{2} $, with a slight addition of $ NaH_{2} %$ PO_{4} $·$ 2H_{2} $O by designing composition after sintered at different temperatures. The mullite...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Jiang, Xiaoqian [verfasserIn] Li, Jinhong Ma, Hongwen Zhou, Wencai Tong, Lingxin

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2011

Schlagwörter:	coal fly ash mullite whiskers andalusite-sericite phyllite grain size

Anmerkung:	© The Nonferrous Metals Society of China and Springer-Verlag Berlin Heidelberg 2011

Übergeordnetes Werk:	Enthalten in: Rare metals - Beijing : Yejin Gongye Chubanshe, 1989, 30(2011), Suppl 1 vom: März, Seite 379-382
Übergeordnetes Werk:	volume:30 ; year:2011 ; number:Suppl 1 ; month:03 ; pages:379-382

Links:	Volltext

DOI / URN:	10.1007/s12598-011-0307-4

Katalog-ID:	SPR026249065

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245	1	0	\|a Temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite
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520			\|a Abstract Mullite whiskers were successfully synthesized using coal fly ash, andalusite-sericite phyllite, $ NH_{4} $Al($ SO_{4} $)2·$ 12H_{2} $O and $ SiO_{2} $, with a slight addition of $ NaH_{2} %$ PO_{4} $·$ 2H_{2} $O by designing composition after sintered at different temperatures. The mullite whisker morphology, structure and formation mechanism were investigated by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The results show that the forming temperature of pure mullite from andalusite-sericite phyllite is lower than that from coal fly ash owing to more silica glass phase. The mullite microcrystals begin to grow at approximately 1200 °C for andalusite-sericite phyllite and 1300 °C for coal fly ash, and both grow into long whiskers at around 1400 °C. With the prescription of $ Al_{2} %$ O_{3} $/$ SiO_{2} $ molar ratio of 0.32, sintered at 1400 °C for 6 h and chemically leached with HF solution to remove glass matrix in the products, uniform mullite whiskers with 0.2–0.5 μm (aspect ratio 30, prepared from high-aluminium coal fly ash) and 0.3–3 μm (aspect ratio 10–30, prepared from andalusite-sericite phyllite) in diameter can be well prepared.
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700	1		\|a Tong, Lingxin \|4 aut
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allfields	10.1007/s12598-011-0307-4 doi (DE-627)SPR026249065 (SPR)s12598-011-0307-4-e DE-627 ger DE-627 rakwb eng Jiang, Xiaoqian verfasserin aut Temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Nonferrous Metals Society of China and Springer-Verlag Berlin Heidelberg 2011 Abstract Mullite whiskers were successfully synthesized using coal fly ash, andalusite-sericite phyllite, $ NH_{4} $Al($ SO_{4} $)2·$ 12H_{2} $O and $ SiO_{2} $, with a slight addition of $ NaH_{2} %$ PO_{4} $·$ 2H_{2} $O by designing composition after sintered at different temperatures. The mullite whisker morphology, structure and formation mechanism were investigated by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The results show that the forming temperature of pure mullite from andalusite-sericite phyllite is lower than that from coal fly ash owing to more silica glass phase. The mullite microcrystals begin to grow at approximately 1200 °C for andalusite-sericite phyllite and 1300 °C for coal fly ash, and both grow into long whiskers at around 1400 °C. With the prescription of $ Al_{2} %$ O_{3} $/$ SiO_{2} $ molar ratio of 0.32, sintered at 1400 °C for 6 h and chemically leached with HF solution to remove glass matrix in the products, uniform mullite whiskers with 0.2–0.5 μm (aspect ratio 30, prepared from high-aluminium coal fly ash) and 0.3–3 μm (aspect ratio 10–30, prepared from andalusite-sericite phyllite) in diameter can be well prepared. coal fly ash (dpeaa)DE-He213 mullite whiskers (dpeaa)DE-He213 andalusite-sericite phyllite (dpeaa)DE-He213 grain size (dpeaa)DE-He213 Li, Jinhong aut Ma, Hongwen aut Zhou, Wencai aut Tong, Lingxin aut Enthalten in Rare metals Beijing : Yejin Gongye Chubanshe, 1989 30(2011), Suppl 1 vom: März, Seite 379-382 (DE-627)513219307 (DE-600)2238702-X 1867-7185 nnns volume:30 year:2011 number:Suppl 1 month:03 pages:379-382 https://dx.doi.org/10.1007/s12598-011-0307-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_2700 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 30 2011 Suppl 1 03 379-382
spelling	10.1007/s12598-011-0307-4 doi (DE-627)SPR026249065 (SPR)s12598-011-0307-4-e DE-627 ger DE-627 rakwb eng Jiang, Xiaoqian verfasserin aut Temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Nonferrous Metals Society of China and Springer-Verlag Berlin Heidelberg 2011 Abstract Mullite whiskers were successfully synthesized using coal fly ash, andalusite-sericite phyllite, $ NH_{4} $Al($ SO_{4} $)2·$ 12H_{2} $O and $ SiO_{2} $, with a slight addition of $ NaH_{2} %$ PO_{4} $·$ 2H_{2} $O by designing composition after sintered at different temperatures. The mullite whisker morphology, structure and formation mechanism were investigated by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The results show that the forming temperature of pure mullite from andalusite-sericite phyllite is lower than that from coal fly ash owing to more silica glass phase. The mullite microcrystals begin to grow at approximately 1200 °C for andalusite-sericite phyllite and 1300 °C for coal fly ash, and both grow into long whiskers at around 1400 °C. With the prescription of $ Al_{2} %$ O_{3} $/$ SiO_{2} $ molar ratio of 0.32, sintered at 1400 °C for 6 h and chemically leached with HF solution to remove glass matrix in the products, uniform mullite whiskers with 0.2–0.5 μm (aspect ratio 30, prepared from high-aluminium coal fly ash) and 0.3–3 μm (aspect ratio 10–30, prepared from andalusite-sericite phyllite) in diameter can be well prepared. coal fly ash (dpeaa)DE-He213 mullite whiskers (dpeaa)DE-He213 andalusite-sericite phyllite (dpeaa)DE-He213 grain size (dpeaa)DE-He213 Li, Jinhong aut Ma, Hongwen aut Zhou, Wencai aut Tong, Lingxin aut Enthalten in Rare metals Beijing : Yejin Gongye Chubanshe, 1989 30(2011), Suppl 1 vom: März, Seite 379-382 (DE-627)513219307 (DE-600)2238702-X 1867-7185 nnns volume:30 year:2011 number:Suppl 1 month:03 pages:379-382 https://dx.doi.org/10.1007/s12598-011-0307-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_2700 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 30 2011 Suppl 1 03 379-382
allfields_unstemmed	10.1007/s12598-011-0307-4 doi (DE-627)SPR026249065 (SPR)s12598-011-0307-4-e DE-627 ger DE-627 rakwb eng Jiang, Xiaoqian verfasserin aut Temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Nonferrous Metals Society of China and Springer-Verlag Berlin Heidelberg 2011 Abstract Mullite whiskers were successfully synthesized using coal fly ash, andalusite-sericite phyllite, $ NH_{4} $Al($ SO_{4} $)2·$ 12H_{2} $O and $ SiO_{2} $, with a slight addition of $ NaH_{2} %$ PO_{4} $·$ 2H_{2} $O by designing composition after sintered at different temperatures. The mullite whisker morphology, structure and formation mechanism were investigated by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The results show that the forming temperature of pure mullite from andalusite-sericite phyllite is lower than that from coal fly ash owing to more silica glass phase. The mullite microcrystals begin to grow at approximately 1200 °C for andalusite-sericite phyllite and 1300 °C for coal fly ash, and both grow into long whiskers at around 1400 °C. With the prescription of $ Al_{2} %$ O_{3} $/$ SiO_{2} $ molar ratio of 0.32, sintered at 1400 °C for 6 h and chemically leached with HF solution to remove glass matrix in the products, uniform mullite whiskers with 0.2–0.5 μm (aspect ratio 30, prepared from high-aluminium coal fly ash) and 0.3–3 μm (aspect ratio 10–30, prepared from andalusite-sericite phyllite) in diameter can be well prepared. coal fly ash (dpeaa)DE-He213 mullite whiskers (dpeaa)DE-He213 andalusite-sericite phyllite (dpeaa)DE-He213 grain size (dpeaa)DE-He213 Li, Jinhong aut Ma, Hongwen aut Zhou, Wencai aut Tong, Lingxin aut Enthalten in Rare metals Beijing : Yejin Gongye Chubanshe, 1989 30(2011), Suppl 1 vom: März, Seite 379-382 (DE-627)513219307 (DE-600)2238702-X 1867-7185 nnns volume:30 year:2011 number:Suppl 1 month:03 pages:379-382 https://dx.doi.org/10.1007/s12598-011-0307-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_2700 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 30 2011 Suppl 1 03 379-382
allfieldsGer	10.1007/s12598-011-0307-4 doi (DE-627)SPR026249065 (SPR)s12598-011-0307-4-e DE-627 ger DE-627 rakwb eng Jiang, Xiaoqian verfasserin aut Temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Nonferrous Metals Society of China and Springer-Verlag Berlin Heidelberg 2011 Abstract Mullite whiskers were successfully synthesized using coal fly ash, andalusite-sericite phyllite, $ NH_{4} $Al($ SO_{4} $)2·$ 12H_{2} $O and $ SiO_{2} $, with a slight addition of $ NaH_{2} %$ PO_{4} $·$ 2H_{2} $O by designing composition after sintered at different temperatures. The mullite whisker morphology, structure and formation mechanism were investigated by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The results show that the forming temperature of pure mullite from andalusite-sericite phyllite is lower than that from coal fly ash owing to more silica glass phase. The mullite microcrystals begin to grow at approximately 1200 °C for andalusite-sericite phyllite and 1300 °C for coal fly ash, and both grow into long whiskers at around 1400 °C. With the prescription of $ Al_{2} %$ O_{3} $/$ SiO_{2} $ molar ratio of 0.32, sintered at 1400 °C for 6 h and chemically leached with HF solution to remove glass matrix in the products, uniform mullite whiskers with 0.2–0.5 μm (aspect ratio 30, prepared from high-aluminium coal fly ash) and 0.3–3 μm (aspect ratio 10–30, prepared from andalusite-sericite phyllite) in diameter can be well prepared. coal fly ash (dpeaa)DE-He213 mullite whiskers (dpeaa)DE-He213 andalusite-sericite phyllite (dpeaa)DE-He213 grain size (dpeaa)DE-He213 Li, Jinhong aut Ma, Hongwen aut Zhou, Wencai aut Tong, Lingxin aut Enthalten in Rare metals Beijing : Yejin Gongye Chubanshe, 1989 30(2011), Suppl 1 vom: März, Seite 379-382 (DE-627)513219307 (DE-600)2238702-X 1867-7185 nnns volume:30 year:2011 number:Suppl 1 month:03 pages:379-382 https://dx.doi.org/10.1007/s12598-011-0307-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_2700 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 30 2011 Suppl 1 03 379-382
allfieldsSound	10.1007/s12598-011-0307-4 doi (DE-627)SPR026249065 (SPR)s12598-011-0307-4-e DE-627 ger DE-627 rakwb eng Jiang, Xiaoqian verfasserin aut Temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Nonferrous Metals Society of China and Springer-Verlag Berlin Heidelberg 2011 Abstract Mullite whiskers were successfully synthesized using coal fly ash, andalusite-sericite phyllite, $ NH_{4} $Al($ SO_{4} $)2·$ 12H_{2} $O and $ SiO_{2} $, with a slight addition of $ NaH_{2} %$ PO_{4} $·$ 2H_{2} $O by designing composition after sintered at different temperatures. The mullite whisker morphology, structure and formation mechanism were investigated by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The results show that the forming temperature of pure mullite from andalusite-sericite phyllite is lower than that from coal fly ash owing to more silica glass phase. The mullite microcrystals begin to grow at approximately 1200 °C for andalusite-sericite phyllite and 1300 °C for coal fly ash, and both grow into long whiskers at around 1400 °C. With the prescription of $ Al_{2} %$ O_{3} $/$ SiO_{2} $ molar ratio of 0.32, sintered at 1400 °C for 6 h and chemically leached with HF solution to remove glass matrix in the products, uniform mullite whiskers with 0.2–0.5 μm (aspect ratio 30, prepared from high-aluminium coal fly ash) and 0.3–3 μm (aspect ratio 10–30, prepared from andalusite-sericite phyllite) in diameter can be well prepared. coal fly ash (dpeaa)DE-He213 mullite whiskers (dpeaa)DE-He213 andalusite-sericite phyllite (dpeaa)DE-He213 grain size (dpeaa)DE-He213 Li, Jinhong aut Ma, Hongwen aut Zhou, Wencai aut Tong, Lingxin aut Enthalten in Rare metals Beijing : Yejin Gongye Chubanshe, 1989 30(2011), Suppl 1 vom: März, Seite 379-382 (DE-627)513219307 (DE-600)2238702-X 1867-7185 nnns volume:30 year:2011 number:Suppl 1 month:03 pages:379-382 https://dx.doi.org/10.1007/s12598-011-0307-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_2700 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 30 2011 Suppl 1 03 379-382
language	English
source	Enthalten in Rare metals 30(2011), Suppl 1 vom: März, Seite 379-382 volume:30 year:2011 number:Suppl 1 month:03 pages:379-382
sourceStr	Enthalten in Rare metals 30(2011), Suppl 1 vom: März, Seite 379-382 volume:30 year:2011 number:Suppl 1 month:03 pages:379-382
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	coal fly ash mullite whiskers andalusite-sericite phyllite grain size
isfreeaccess_bool	false
container_title	Rare metals
authorswithroles_txt_mv	Jiang, Xiaoqian @@aut@@ Li, Jinhong @@aut@@ Ma, Hongwen @@aut@@ Zhou, Wencai @@aut@@ Tong, Lingxin @@aut@@
publishDateDaySort_date	2011-03-01T00:00:00Z
hierarchy_top_id	513219307
id	SPR026249065
language_de	englisch
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author	Jiang, Xiaoqian
spellingShingle	Jiang, Xiaoqian misc coal fly ash misc mullite whiskers misc andalusite-sericite phyllite misc grain size Temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite
authorStr	Jiang, Xiaoqian
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topic_title	Temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite coal fly ash (dpeaa)DE-He213 mullite whiskers (dpeaa)DE-He213 andalusite-sericite phyllite (dpeaa)DE-He213 grain size (dpeaa)DE-He213
topic	misc coal fly ash misc mullite whiskers misc andalusite-sericite phyllite misc grain size
topic_unstemmed	misc coal fly ash misc mullite whiskers misc andalusite-sericite phyllite misc grain size
topic_browse	misc coal fly ash misc mullite whiskers misc andalusite-sericite phyllite misc grain size
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title	Temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite
ctrlnum	(DE-627)SPR026249065 (SPR)s12598-011-0307-4-e
title_full	Temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite
author_sort	Jiang, Xiaoqian
journal	Rare metals
journalStr	Rare metals
lang_code	eng
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container_start_page	379
author_browse	Jiang, Xiaoqian Li, Jinhong Ma, Hongwen Zhou, Wencai Tong, Lingxin
container_volume	30
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author-letter	Jiang, Xiaoqian
doi_str_mv	10.1007/s12598-011-0307-4
title_sort	temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite
title_auth	Temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite
abstract	Abstract Mullite whiskers were successfully synthesized using coal fly ash, andalusite-sericite phyllite, $ NH_{4} $Al($ SO_{4} $)2·$ 12H_{2} $O and $ SiO_{2} $, with a slight addition of $ NaH_{2} %$ PO_{4} $·$ 2H_{2} $O by designing composition after sintered at different temperatures. The mullite whisker morphology, structure and formation mechanism were investigated by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The results show that the forming temperature of pure mullite from andalusite-sericite phyllite is lower than that from coal fly ash owing to more silica glass phase. The mullite microcrystals begin to grow at approximately 1200 °C for andalusite-sericite phyllite and 1300 °C for coal fly ash, and both grow into long whiskers at around 1400 °C. With the prescription of $ Al_{2} %$ O_{3} $/$ SiO_{2} $ molar ratio of 0.32, sintered at 1400 °C for 6 h and chemically leached with HF solution to remove glass matrix in the products, uniform mullite whiskers with 0.2–0.5 μm (aspect ratio 30, prepared from high-aluminium coal fly ash) and 0.3–3 μm (aspect ratio 10–30, prepared from andalusite-sericite phyllite) in diameter can be well prepared. © The Nonferrous Metals Society of China and Springer-Verlag Berlin Heidelberg 2011
abstractGer	Abstract Mullite whiskers were successfully synthesized using coal fly ash, andalusite-sericite phyllite, $ NH_{4} $Al($ SO_{4} $)2·$ 12H_{2} $O and $ SiO_{2} $, with a slight addition of $ NaH_{2} %$ PO_{4} $·$ 2H_{2} $O by designing composition after sintered at different temperatures. The mullite whisker morphology, structure and formation mechanism were investigated by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The results show that the forming temperature of pure mullite from andalusite-sericite phyllite is lower than that from coal fly ash owing to more silica glass phase. The mullite microcrystals begin to grow at approximately 1200 °C for andalusite-sericite phyllite and 1300 °C for coal fly ash, and both grow into long whiskers at around 1400 °C. With the prescription of $ Al_{2} %$ O_{3} $/$ SiO_{2} $ molar ratio of 0.32, sintered at 1400 °C for 6 h and chemically leached with HF solution to remove glass matrix in the products, uniform mullite whiskers with 0.2–0.5 μm (aspect ratio 30, prepared from high-aluminium coal fly ash) and 0.3–3 μm (aspect ratio 10–30, prepared from andalusite-sericite phyllite) in diameter can be well prepared. © The Nonferrous Metals Society of China and Springer-Verlag Berlin Heidelberg 2011
abstract_unstemmed	Abstract Mullite whiskers were successfully synthesized using coal fly ash, andalusite-sericite phyllite, $ NH_{4} $Al($ SO_{4} $)2·$ 12H_{2} $O and $ SiO_{2} $, with a slight addition of $ NaH_{2} %$ PO_{4} $·$ 2H_{2} $O by designing composition after sintered at different temperatures. The mullite whisker morphology, structure and formation mechanism were investigated by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The results show that the forming temperature of pure mullite from andalusite-sericite phyllite is lower than that from coal fly ash owing to more silica glass phase. The mullite microcrystals begin to grow at approximately 1200 °C for andalusite-sericite phyllite and 1300 °C for coal fly ash, and both grow into long whiskers at around 1400 °C. With the prescription of $ Al_{2} %$ O_{3} $/$ SiO_{2} $ molar ratio of 0.32, sintered at 1400 °C for 6 h and chemically leached with HF solution to remove glass matrix in the products, uniform mullite whiskers with 0.2–0.5 μm (aspect ratio 30, prepared from high-aluminium coal fly ash) and 0.3–3 μm (aspect ratio 10–30, prepared from andalusite-sericite phyllite) in diameter can be well prepared. © The Nonferrous Metals Society of China and Springer-Verlag Berlin Heidelberg 2011
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container_issue	Suppl 1
title_short	Temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite
url	https://dx.doi.org/10.1007/s12598-011-0307-4
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author2	Li, Jinhong Ma, Hongwen Zhou, Wencai Tong, Lingxin
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doi_str	10.1007/s12598-011-0307-4
up_date	2024-07-03T19:45:57.330Z
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The mullite whisker morphology, structure and formation mechanism were investigated by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The results show that the forming temperature of pure mullite from andalusite-sericite phyllite is lower than that from coal fly ash owing to more silica glass phase. The mullite microcrystals begin to grow at approximately 1200 °C for andalusite-sericite phyllite and 1300 °C for coal fly ash, and both grow into long whiskers at around 1400 °C. With the prescription of $ Al_{2} %$ O_{3} $/$ SiO_{2} $ molar ratio of 0.32, sintered at 1400 °C for 6 h and chemically leached with HF solution to remove glass matrix in the products, uniform mullite whiskers with 0.2–0.5 μm (aspect ratio 30, prepared from high-aluminium coal fly ash) and 0.3–3 μm (aspect ratio 10–30, prepared from andalusite-sericite phyllite) in diameter can be well prepared.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">coal fly ash</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">mullite whiskers</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">andalusite-sericite phyllite</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">grain size</subfield><subfield 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Temperature feature on synthesizing mullite whiskers from coal fly ash and andalusite-sericite phyllite

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