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Doping of tantalum,...
Doping of tantalum, niobium, and hafnium in a translucent ZrO2-SiO2 nanocrystalline glass-ceramic
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- Fu, Le (författare)
- Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China.
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- Jiang, Fuqing (författare)
- Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.
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- Li, Bo (författare)
- Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China.
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- Cheng, Yongxin (författare)
- Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China.
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- Xu, Guofu (författare)
- Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China.
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- Huang, Jiwu (författare)
- Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China.
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- Engqvist, Håkan, 1972- (författare)
- Uppsala universitet,Tillämpad materialvetenskap
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- Xia, Wei, Senior Lecture/Associate Professor (författare)
- Uppsala universitet,Tillämpad materialvetenskap
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Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China. (creator_code:org_t)
- Elsevier, 2022
- 2022
- Engelska.
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Ingår i: Journal of the European Ceramic Society. - : Elsevier. - 0955-2219 .- 1873-619X. ; 42:4, s. 1731-1742
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The addition of dopant(s) is an effective strategy to regulate the microstructure and properties of ZrO2-based ceramics. In this study, we investigated the effects of ternary element alloying, namely tantalum (Ta), niobium (Nb), and hafnium (Hf) elements, on the microstructure and transformability of ZrO2 nanocrystallites in a ZrO2SiO2 nanocrystalline glass-ceramic (NCGC) during sintering and thermal treatments. The ternary dopants enhanced the transformability of tetragonal ZrO2 (t-ZrO2) nanocrystallites during sintering, i.e., the dopants acted as t-ZrO2 destabilizer. The Ta, Nb and Hf elements dissolved in ZrO2 nanocrystallites, forming ZrO2 solid solution. Meanwhile, lamella nanotwins were formed within many ZrO2 nanocrystallites. No obvious segregation of dopants was detected at ZrO2 grain boundaries. t-ZrO2 and monoclinic (m) ZrO2 nanocrystallites were metastable in thermal treatments process, with "t" to "m" and the reverse "m" to "t" polymorphic transformation occurred simultaneously. Meanwhile, t-ZrO2 and m-ZrO2 nanocrystallites had a great tendency to grow larger during thermal treatments.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Keramteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Ceramics (hsv//eng)
Nyckelord
- Nanocrystalline glass-ceramics
- Transformability
- Dopant
- Thermal treatments
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Till lärosätets databas
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Fu, Le
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Jiang, Fuqing
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Li, Bo
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Cheng, Yongxin
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Xu, Guofu
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Huang, Jiwu
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Engqvist, Håkan, ...
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Xia, Wei, Senior ...
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- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Materialkemi
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Materialteknik
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och Keramteknik
- Artiklar i publikationen
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Journal of the E ...
- Av lärosätet
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Uppsala universitet