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Contamination Study of Zirconia on the Densification Process and Properties of Transparent MgAl2O4 Ceramics
Li, Yi; Zeng, Qun; Zhang, Jian; Han, Dan; Wang, Shiwei
2019-03-01
Source PublicationMATERIALS
ISSN1996-1944
Volume12Issue:5
SubtypeArticle
AbstractIn this paper, transparent magnesium aluminate (MgAl2O4) spinel ceramics are fabricated through pressureless sintering combined with hot isostatic pressing (HIPing). To investigate the effect of zirconia on sintering behavior, microstructure, and optical properties of transparent spinel ceramics, different contents of zirconia were added. The results show that zirconia can promote the densification process by the formation of anion vacancies. The resulting zirconia exists as tetragonal phase along the grain boundaries. The average grain size of resulting ceramics depends on the content of zirconia and HIPing condition. Small zirconia content did not deteriorate the optical properties of samples. A 5-mm-thick sample with 0.05 wt% ZrO2 pre-sintered at 1500 degrees C followed by HIPing treatment at 1550 degrees C achieved a high in-line transmittance of 75.5% at 400 nm and 85% at 1100 nm.
Keywordspinel transparent ceramics zirconia microstructure optical properties
DOI10.3390/ma12050749
Language英语
WOS Research AreaMaterials Science
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27292
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Li, Yi,Zeng, Qun,Zhang, Jian,et al. Contamination Study of Zirconia on the Densification Process and Properties of Transparent MgAl2O4 Ceramics[J]. MATERIALS,2019,12(5).
APA Li, Yi,Zeng, Qun,Zhang, Jian,Han, Dan,&Wang, Shiwei.(2019).Contamination Study of Zirconia on the Densification Process and Properties of Transparent MgAl2O4 Ceramics.MATERIALS,12(5).
MLA Li, Yi,et al."Contamination Study of Zirconia on the Densification Process and Properties of Transparent MgAl2O4 Ceramics".MATERIALS 12.5(2019).
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