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Liquid-phase sinter...
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Fu, LeCent South Univ, Sch Mat Sci & Engn, Changsha, Peoples R China.;Cent South Univ, Sch Mat Sci & Engn, 932 Lushan Rd, Changsha 410083, Peoples R China.
(author)
Liquid-phase sintering of ZrO2-based nanocrystalline glass-ceramics achieved by multielement co-doping
- Article/chapterEnglish2023
Publisher, publication year, extent ...
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2022-12-26
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John Wiley & Sons,2023
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:uu-496849
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-496849URI
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https://doi.org/10.1111/jace.18945DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Liquid-phase sintering (LPS) is an effective pathway to assist the densification of ceramics. However, it has seldom been used to densify glass-ceramics. In the present study, a multielement co-doping strategy has been utilized to achieve LPS of a ZrO2-SiO2 nanocrystalline glass-ceramic. Compared with undoped samples densified by solid-state sintering, doping of equimolar Al, Y, and Ca promoted the densification of the glass-ceramic at lower temperatures with a faster densification rate. Ternary doping enhanced coarsening of ZrO2 nanocrystallites during sintering and annealing. The distribution of dopants was carefully observed with X-ray energy-dispersive spectrometry technique in scanning electron transmission microscopy mode. Results showed that the three dopants showed different distribution behaviors. After sintering, Y dopants were predominately distributed in ZrO2 nanocrystallites, whereas parts of Al and Ca dopants were distributed in ZrO2 nanocrystallites and part of them co-segregated at the ZrO2/SiO2 heterointerfaces. Meanwhile, the segregation of Ca dopant at some intergranular films among ZrO2 nanocrystallites was observed. Redistribution of dopants did not occur during annealing.
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Wang, BohanCent South Univ, Sch Mat Sci & Engn, Changsha, Peoples R China.
(author)
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Deng, YingCent South Univ, Sch Mat Sci & Engn, Changsha, Peoples R China.
(author)
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Xu, GuofuCent South Univ, Sch Mat Sci & Engn, Changsha, Peoples R China.
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Huang, JiwuCent South Univ, Sch Mat Sci & Engn, Changsha, Peoples R China.
(author)
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Engqvist, Håkan,1972-Uppsala universitet,Tillämpad materialvetenskap(Swepub:uu)hakaengq
(author)
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Xia, Wei,Senior Lecture/Associate ProfessorUppsala universitet,Tillämpad materialvetenskap(Swepub:uu)weixi400
(author)
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Cent South Univ, Sch Mat Sci & Engn, Changsha, Peoples R China.;Cent South Univ, Sch Mat Sci & Engn, 932 Lushan Rd, Changsha 410083, Peoples R China.Cent South Univ, Sch Mat Sci & Engn, Changsha, Peoples R China.
(creator_code:org_t)
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In:Journal of The American Ceramic Society: John Wiley & Sons106:4, s. 2702-27150002-78201551-2916
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