Search: onr:"swepub:oai:DiVA.org:uu-496849" >
Liquid-phase sinter...
Liquid-phase sintering of ZrO2-based nanocrystalline glass-ceramics achieved by multielement co-doping
-
- Fu, Le (author)
- 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.
-
- Wang, Bohan (author)
- Cent South Univ, Sch Mat Sci & Engn, Changsha, Peoples R China.
-
- Deng, Ying (author)
- Cent South Univ, Sch Mat Sci & Engn, Changsha, Peoples R China.
-
show more...
-
- Xu, Guofu (author)
- Cent South Univ, Sch Mat Sci & Engn, Changsha, Peoples R China.
-
- Huang, Jiwu (author)
- Cent South Univ, Sch Mat Sci & Engn, Changsha, Peoples R China.
-
- Engqvist, Håkan, 1972- (author)
- Uppsala universitet,Tillämpad materialvetenskap
-
- Xia, Wei, Senior Lecture/Associate Professor (author)
- Uppsala universitet,Tillämpad materialvetenskap
-
show less...
-
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)
- 2022-12-26
- 2023
- English.
-
In: Journal of The American Ceramic Society. - : John Wiley & Sons. - 0002-7820 .- 1551-2916. ; 106:4, s. 2702-2715
- Related links:
-
https://doi.org/10.1...
-
show more...
-
https://uu.diva-port... (primary) (Raw object)
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Keramteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Ceramics (hsv//eng)
Keyword
- co-doping
- grain coarsening
- liquid-phase sintering
- nanocrystalline glass-ceramics
- ZrO2-SiO2
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database