Influence of Ta

Spent MoSi2-based materials were recycled as coating raw-materials, and MoSi2 and MoSi2-Ta2O5 coatings were fabricated to protect niobium using Spark Plasma Sintering (SPS). The micromorphology and anti-oxidation properties of the coatings at 1773 K were researched. Penetrating cracks were detected...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Zhu, Lu [verfasserIn] Wang, Xiaohong [verfasserIn] Mao, Chenhao [verfasserIn] Ren, Xuanru [verfasserIn] Feng, Peizhong [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	Niobium Spent MoSi Ta Micromorphology Anti-oxidation coating

Übergeordnetes Werk:	Enthalten in: Materials characterization - New York, NY : Science Direct, 1990, 179
Übergeordnetes Werk:	volume:179

DOI / URN:	10.1016/j.matchar.2021.111328

Katalog-ID:	ELV006543227

Internformat


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Indexfelder

author_variant	l z lz x w xw c m cm x r xr p f pf
matchkey_str	zhuluwangxiaohongmaochenhaorenxuanrufeng:2021----:nlec
hierarchy_sort_str	2021
bklnumber	51.30
publishDate	2021
allfields	10.1016/j.matchar.2021.111328 doi (DE-627)ELV006543227 (ELSEVIER)S1044-5803(21)00450-2 DE-627 ger DE-627 rda eng 670 DE-600 51.30 bkl Zhu, Lu verfasserin aut Influence of Ta 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Spent MoSi2-based materials were recycled as coating raw-materials, and MoSi2 and MoSi2-Ta2O5 coatings were fabricated to protect niobium using Spark Plasma Sintering (SPS). The micromorphology and anti-oxidation properties of the coatings at 1773 K were researched. Penetrating cracks were detected in the MoSi2 coating surface while no cracks appeared in MoSi2-Ta2O5 composite coating since the thermal expansion mismatch of the substrate and coating was reduced by adding Ta2O5. (Mo,Nb)5Si3 diffusion layer formed in MoSi2-Ta2O5 composite coatings, showing good metallurgical combination between substrate and coating. After oxidation at 1773 K for 20 h, crack-free Ta-Si-O layer with low oxygen permeability was formed on the composite coating. Compared with the oxidized MoSi2 coating, lower mass gain is gained by MoSi2-Ta2O5 composite coating under same conditions, presenting improved oxygen-barrier properties at high temperature. Niobium Spent MoSi Ta Micromorphology Anti-oxidation coating Wang, Xiaohong verfasserin aut Mao, Chenhao verfasserin aut Ren, Xuanru verfasserin aut Feng, Peizhong verfasserin aut Enthalten in Materials characterization New York, NY : Science Direct, 1990 179 Online-Ressource (DE-627)302719288 (DE-600)1491951-5 (DE-576)259483966 nnns volume:179 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 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_4338 GBV_ILN_4393 51.30 Werkstoffprüfung Werkstoffuntersuchung AR 179
spelling	10.1016/j.matchar.2021.111328 doi (DE-627)ELV006543227 (ELSEVIER)S1044-5803(21)00450-2 DE-627 ger DE-627 rda eng 670 DE-600 51.30 bkl Zhu, Lu verfasserin aut Influence of Ta 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Spent MoSi2-based materials were recycled as coating raw-materials, and MoSi2 and MoSi2-Ta2O5 coatings were fabricated to protect niobium using Spark Plasma Sintering (SPS). The micromorphology and anti-oxidation properties of the coatings at 1773 K were researched. Penetrating cracks were detected in the MoSi2 coating surface while no cracks appeared in MoSi2-Ta2O5 composite coating since the thermal expansion mismatch of the substrate and coating was reduced by adding Ta2O5. (Mo,Nb)5Si3 diffusion layer formed in MoSi2-Ta2O5 composite coatings, showing good metallurgical combination between substrate and coating. After oxidation at 1773 K for 20 h, crack-free Ta-Si-O layer with low oxygen permeability was formed on the composite coating. Compared with the oxidized MoSi2 coating, lower mass gain is gained by MoSi2-Ta2O5 composite coating under same conditions, presenting improved oxygen-barrier properties at high temperature. Niobium Spent MoSi Ta Micromorphology Anti-oxidation coating Wang, Xiaohong verfasserin aut Mao, Chenhao verfasserin aut Ren, Xuanru verfasserin aut Feng, Peizhong verfasserin aut Enthalten in Materials characterization New York, NY : Science Direct, 1990 179 Online-Ressource (DE-627)302719288 (DE-600)1491951-5 (DE-576)259483966 nnns volume:179 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 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_4338 GBV_ILN_4393 51.30 Werkstoffprüfung Werkstoffuntersuchung AR 179
allfields_unstemmed	10.1016/j.matchar.2021.111328 doi (DE-627)ELV006543227 (ELSEVIER)S1044-5803(21)00450-2 DE-627 ger DE-627 rda eng 670 DE-600 51.30 bkl Zhu, Lu verfasserin aut Influence of Ta 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Spent MoSi2-based materials were recycled as coating raw-materials, and MoSi2 and MoSi2-Ta2O5 coatings were fabricated to protect niobium using Spark Plasma Sintering (SPS). The micromorphology and anti-oxidation properties of the coatings at 1773 K were researched. Penetrating cracks were detected in the MoSi2 coating surface while no cracks appeared in MoSi2-Ta2O5 composite coating since the thermal expansion mismatch of the substrate and coating was reduced by adding Ta2O5. (Mo,Nb)5Si3 diffusion layer formed in MoSi2-Ta2O5 composite coatings, showing good metallurgical combination between substrate and coating. After oxidation at 1773 K for 20 h, crack-free Ta-Si-O layer with low oxygen permeability was formed on the composite coating. Compared with the oxidized MoSi2 coating, lower mass gain is gained by MoSi2-Ta2O5 composite coating under same conditions, presenting improved oxygen-barrier properties at high temperature. Niobium Spent MoSi Ta Micromorphology Anti-oxidation coating Wang, Xiaohong verfasserin aut Mao, Chenhao verfasserin aut Ren, Xuanru verfasserin aut Feng, Peizhong verfasserin aut Enthalten in Materials characterization New York, NY : Science Direct, 1990 179 Online-Ressource (DE-627)302719288 (DE-600)1491951-5 (DE-576)259483966 nnns volume:179 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 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_4338 GBV_ILN_4393 51.30 Werkstoffprüfung Werkstoffuntersuchung AR 179
allfieldsGer	10.1016/j.matchar.2021.111328 doi (DE-627)ELV006543227 (ELSEVIER)S1044-5803(21)00450-2 DE-627 ger DE-627 rda eng 670 DE-600 51.30 bkl Zhu, Lu verfasserin aut Influence of Ta 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Spent MoSi2-based materials were recycled as coating raw-materials, and MoSi2 and MoSi2-Ta2O5 coatings were fabricated to protect niobium using Spark Plasma Sintering (SPS). The micromorphology and anti-oxidation properties of the coatings at 1773 K were researched. Penetrating cracks were detected in the MoSi2 coating surface while no cracks appeared in MoSi2-Ta2O5 composite coating since the thermal expansion mismatch of the substrate and coating was reduced by adding Ta2O5. (Mo,Nb)5Si3 diffusion layer formed in MoSi2-Ta2O5 composite coatings, showing good metallurgical combination between substrate and coating. After oxidation at 1773 K for 20 h, crack-free Ta-Si-O layer with low oxygen permeability was formed on the composite coating. Compared with the oxidized MoSi2 coating, lower mass gain is gained by MoSi2-Ta2O5 composite coating under same conditions, presenting improved oxygen-barrier properties at high temperature. Niobium Spent MoSi Ta Micromorphology Anti-oxidation coating Wang, Xiaohong verfasserin aut Mao, Chenhao verfasserin aut Ren, Xuanru verfasserin aut Feng, Peizhong verfasserin aut Enthalten in Materials characterization New York, NY : Science Direct, 1990 179 Online-Ressource (DE-627)302719288 (DE-600)1491951-5 (DE-576)259483966 nnns volume:179 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 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_4338 GBV_ILN_4393 51.30 Werkstoffprüfung Werkstoffuntersuchung AR 179
allfieldsSound	10.1016/j.matchar.2021.111328 doi (DE-627)ELV006543227 (ELSEVIER)S1044-5803(21)00450-2 DE-627 ger DE-627 rda eng 670 DE-600 51.30 bkl Zhu, Lu verfasserin aut Influence of Ta 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Spent MoSi2-based materials were recycled as coating raw-materials, and MoSi2 and MoSi2-Ta2O5 coatings were fabricated to protect niobium using Spark Plasma Sintering (SPS). The micromorphology and anti-oxidation properties of the coatings at 1773 K were researched. Penetrating cracks were detected in the MoSi2 coating surface while no cracks appeared in MoSi2-Ta2O5 composite coating since the thermal expansion mismatch of the substrate and coating was reduced by adding Ta2O5. (Mo,Nb)5Si3 diffusion layer formed in MoSi2-Ta2O5 composite coatings, showing good metallurgical combination between substrate and coating. After oxidation at 1773 K for 20 h, crack-free Ta-Si-O layer with low oxygen permeability was formed on the composite coating. Compared with the oxidized MoSi2 coating, lower mass gain is gained by MoSi2-Ta2O5 composite coating under same conditions, presenting improved oxygen-barrier properties at high temperature. Niobium Spent MoSi Ta Micromorphology Anti-oxidation coating Wang, Xiaohong verfasserin aut Mao, Chenhao verfasserin aut Ren, Xuanru verfasserin aut Feng, Peizhong verfasserin aut Enthalten in Materials characterization New York, NY : Science Direct, 1990 179 Online-Ressource (DE-627)302719288 (DE-600)1491951-5 (DE-576)259483966 nnns volume:179 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 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_4338 GBV_ILN_4393 51.30 Werkstoffprüfung Werkstoffuntersuchung AR 179
language	English
source	Enthalten in Materials characterization 179 volume:179
sourceStr	Enthalten in Materials characterization 179 volume:179
format_phy_str_mv	Article
bklname	Werkstoffprüfung Werkstoffuntersuchung
institution	findex.gbv.de
topic_facet	Niobium Spent MoSi Ta Micromorphology Anti-oxidation coating
dewey-raw	670
isfreeaccess_bool	false
container_title	Materials characterization
authorswithroles_txt_mv	Zhu, Lu @@aut@@ Wang, Xiaohong @@aut@@ Mao, Chenhao @@aut@@ Ren, Xuanru @@aut@@ Feng, Peizhong @@aut@@
publishDateDaySort_date	2021-01-01T00:00:00Z
hierarchy_top_id	302719288
dewey-sort	3670
id	ELV006543227
language_de	englisch
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author	Zhu, Lu
spellingShingle	Zhu, Lu ddc 670 bkl 51.30 misc Niobium misc Spent MoSi misc Ta misc Micromorphology misc Anti-oxidation coating Influence of Ta
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topic_title	670 DE-600 51.30 bkl Influence of Ta Niobium Spent MoSi Ta Micromorphology Anti-oxidation coating
topic	ddc 670 bkl 51.30 misc Niobium misc Spent MoSi misc Ta misc Micromorphology misc Anti-oxidation coating
topic_unstemmed	ddc 670 bkl 51.30 misc Niobium misc Spent MoSi misc Ta misc Micromorphology misc Anti-oxidation coating
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title	Influence of Ta
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title_full	Influence of Ta
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author_browse	Zhu, Lu Wang, Xiaohong Mao, Chenhao Ren, Xuanru Feng, Peizhong
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title_sort	influence of ta
title_auth	Influence of Ta
abstract	Spent MoSi2-based materials were recycled as coating raw-materials, and MoSi2 and MoSi2-Ta2O5 coatings were fabricated to protect niobium using Spark Plasma Sintering (SPS). The micromorphology and anti-oxidation properties of the coatings at 1773 K were researched. Penetrating cracks were detected in the MoSi2 coating surface while no cracks appeared in MoSi2-Ta2O5 composite coating since the thermal expansion mismatch of the substrate and coating was reduced by adding Ta2O5. (Mo,Nb)5Si3 diffusion layer formed in MoSi2-Ta2O5 composite coatings, showing good metallurgical combination between substrate and coating. After oxidation at 1773 K for 20 h, crack-free Ta-Si-O layer with low oxygen permeability was formed on the composite coating. Compared with the oxidized MoSi2 coating, lower mass gain is gained by MoSi2-Ta2O5 composite coating under same conditions, presenting improved oxygen-barrier properties at high temperature.
abstractGer	Spent MoSi2-based materials were recycled as coating raw-materials, and MoSi2 and MoSi2-Ta2O5 coatings were fabricated to protect niobium using Spark Plasma Sintering (SPS). The micromorphology and anti-oxidation properties of the coatings at 1773 K were researched. Penetrating cracks were detected in the MoSi2 coating surface while no cracks appeared in MoSi2-Ta2O5 composite coating since the thermal expansion mismatch of the substrate and coating was reduced by adding Ta2O5. (Mo,Nb)5Si3 diffusion layer formed in MoSi2-Ta2O5 composite coatings, showing good metallurgical combination between substrate and coating. After oxidation at 1773 K for 20 h, crack-free Ta-Si-O layer with low oxygen permeability was formed on the composite coating. Compared with the oxidized MoSi2 coating, lower mass gain is gained by MoSi2-Ta2O5 composite coating under same conditions, presenting improved oxygen-barrier properties at high temperature.
abstract_unstemmed	Spent MoSi2-based materials were recycled as coating raw-materials, and MoSi2 and MoSi2-Ta2O5 coatings were fabricated to protect niobium using Spark Plasma Sintering (SPS). The micromorphology and anti-oxidation properties of the coatings at 1773 K were researched. Penetrating cracks were detected in the MoSi2 coating surface while no cracks appeared in MoSi2-Ta2O5 composite coating since the thermal expansion mismatch of the substrate and coating was reduced by adding Ta2O5. (Mo,Nb)5Si3 diffusion layer formed in MoSi2-Ta2O5 composite coatings, showing good metallurgical combination between substrate and coating. After oxidation at 1773 K for 20 h, crack-free Ta-Si-O layer with low oxygen permeability was formed on the composite coating. Compared with the oxidized MoSi2 coating, lower mass gain is gained by MoSi2-Ta2O5 composite coating under same conditions, presenting improved oxygen-barrier properties at high temperature.
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title_short	Influence of Ta
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author2	Wang, Xiaohong Mao, Chenhao Ren, Xuanru Feng, Peizhong
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doi_str	10.1016/j.matchar.2021.111328
up_date	2024-07-06T21:44:28.550Z
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