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Effect of the binary nonoxide additives on the densification behavior and thermal conductivity of Si(3)N(4)ceramics
Wang, WD; Yao, DX; Liang, HQ; Xia, YF; Zuo, KH; Yin, JW; Zeng, YP
2020-09-01
Source PublicationJOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN0002-7820
Issue10Pages:5891
SubtypeArticle
AbstractBinary nonoxide additives ZrSi2-MgSiN(2)were applied to obtain Si(3)N(4)ceramics with high thermal conductivity by gas pressure sintering. The shrinkage behaviors during sintering were investigated by in situ dilatometry. Although densification was retarded due to a higher N/O ratio in the liquid phase, the incorporation of oxygen was inhibited because of the lower oxygen content in the liquid phase. The substitution of oxide additives by nonoxide additives eliminated native SiO(2)and induced a nitrogen-rich liquid, resulting in purified Si(3)N(4)grains, reduced glassy phase, and enhanced Si3N4-Si(3)N(4)contiguity. Ultimately, a thermal conductivity of 117.32 W m(-1) K(-1)was achieved using ZrSi2-MgSiN(2)as sintering additives, increased by 32% compared to those doped with ZrO2-MgO.
DOI10.1111/jace.17282
WOS KeywordSILICON-NITRIDE CERAMICS ; MECHANICAL-PROPERTIES ; MGSIN2 ADDITION ; SI3N4 CERAMICS ; BETA-SI3N4
Language英语
WOS Research AreaMaterials Science
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27963
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Wang, WD,Yao, DX,Liang, HQ,et al. Effect of the binary nonoxide additives on the densification behavior and thermal conductivity of Si(3)N(4)ceramics[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2020(10):5891.
APA Wang, WD.,Yao, DX.,Liang, HQ.,Xia, YF.,Zuo, KH.,...&Zeng, YP.(2020).Effect of the binary nonoxide additives on the densification behavior and thermal conductivity of Si(3)N(4)ceramics.JOURNAL OF THE AMERICAN CERAMIC SOCIETY(10),5891.
MLA Wang, WD,et al."Effect of the binary nonoxide additives on the densification behavior and thermal conductivity of Si(3)N(4)ceramics".JOURNAL OF THE AMERICAN CERAMIC SOCIETY .10(2020):5891.
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