3wt%Y2O3-1wt%CaO を含む窒化アルミニウムの低温焼結に及ぼす LaB6,B2O3 の添加効果に関する研究

Research for effect of LaB6 or B2O3 addition on low temperature sintering of AlN ceramics with 3wt%Y2O3-1wt%CaO

公開日:2012.10.01

発行日
2003年03月31日
概要
Effect of LaB6 or B2O3 addition on densification and thermal conductivity of AlN with 3wt%Y2O3-1wt%CaO has been investigated by means of shrinkage, weight loss, density, XRD measurements, SEM observation, and the Laser flash method. The 3wt%Y2O3-1wt%CaO -0.25wt%LaB6 and 3wt%Y2O3-1wt%CaO-0.25wt%B2O3 additives were more effective than the 3wt% Y2O3-1wt%CaO additives for the densification of the AlN. The most effective additive was the LaB6 , that is , the AlN samples with 3wt% Y2O3-1wt%CaO-0.25wt%LaB6 sintered at 1600◦C - 4h in N2 atmosphere were fully densified. The thermal conductivity of the samples fully densified at the low temperature would also depend on the phonon scattering, which was caused by the concentration of the aluminum defect in the AlN crystal lattice.【査読有】
文献等

掲載誌名・書名:

中央大学理工学研究所論文集, 第8号/2002, pp.49-57

公開者・出版社:

中央大学理工学研究所

書誌コード類:

ISSN: 1343-0068

種類
論文
言語
日本語
権利情報
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