Effects of adding Y(NO3)3•6H2O on the phase change behavior and thermal conductivity of Aluminum Nitride ceramics

被引：1

作者：

Chung, Jun Ki ^{[1
]}

Ju, Seongmin ^{[2
]}

Ha, Tae Kwon ^{[1
]}

机构：

[1] Gangneung Wonju Natl Univ, Ctr Ind Technol Nonferrous Met, Kangnung 25457, South Korea

[2] Gwangju Inst Sci & Technol, Sch Elect Engn & Comp Sci, Gwangju 61005, South Korea

来源：

JOURNAL OF CERAMIC PROCESSING RESEARCH | 2020年 / 21卷 / 01期

关键词：

AlN; Y(NO3)(3)center dot 6H(2)O; Phase change behavior; Thermal conductivity; Mechanical property;

D O I：

10.36410/jcpr.2020.21.1.1

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The phase change behavior and thermal conductivity of Aluminum nitride (AlN) ceramics with Y(NO3)(3)center dot 6H(2)O and Y2O3 as an additive were studied. Sintering was performed in the temperature of 1,900 degrees C for up to 3 h under a N-2 atmosphere to optimize the sintering conditions for each composition. The microstructure and assemblage of the secondary phase have a significant effect on the final thermal conductivity of the sintered AlN. The mechanical property and thermal conductivity of the AlN composition of using the Y2O3 additive were improved by adding Y(NO3)(3)center dot 6H(2)O, which decreased the porosity. At 13.56 wt% Y(NO3)(3)center dot 6H(2)O, the AlN ceramic exhibited the highest strength of 375 MPa, the highest hardness of 10.60 GPa, and the highest thermal conductivity of 200.2 W/m.K.

引用

页码：1 / 4

页数：4

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