Influence of Powder Characteristics on Sintering of AlN Ceramics

Jin-Yu Qiu; Koji Watari; Yuji HottaKenshi Mitsuishi

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Influence of Powder Characteristics on Sintering of AlN Ceramics

机译：Influence of Powder Characteristics on Sintering of AlN Ceramics

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The sintering behavior of AlN powders with different particle sizes and specific surface areas was investigated in the present work. 4.5-8.0mass of the as-synthesized sintering aid from the Li_2O- Y_2O_3-CaO system was added to these AlN powders, and they were then fired at 1400- 1650℃ for 6h. At the initial stage of sintering the fine AlN powder, it was recognized that sintering of primary particles occurred in agglomerations. With an increase of firing temperature, particles were rearranged and grains grew rapidly at the final stage. On contrary, in sintering of samples using the coarse AlN powder, the densification increased with raising sintering temperatures slowly, and the sintering temperature higher than 1650℃ was required to obtain densified specimens.

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来源
《Key engineering materials》 |2005年第2期|1409-1412|共4页
作者
Jin-Yu Qiu; Koji Watari; Yuji HottaKenshi Mitsuishi;
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作者单位

National Institute of Advanced Industrial Science and Technology (AIST), Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan;

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原文格式 PDF
正文语种英语
中图分类工程基础科学;
关键词
aluminum nitride; sintering additive; agglomeration; densification;

Influence of Powder Characteristics on Sintering of AlN Ceramics

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