Preprints of Annual Meeting of The Ceramic Society of Japan
Preprints of Fall Meeting of The Ceramic Society of Japan
Annual Meeting of The Ceramic Society of Japan, 2011
Session ID : 2P014
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Host: The Ceramic Society of Japan

Improvement of strength and electrical conductivity of CNT-dispersed Si3N4 ceramics by adding HfO2
*Mitsuaki Matsuoka, Sara Yoshio, Tomohiro Yamakawa, Junichi Tatami, Toru Wakihara, Katsutoshi Komeya, Takeshi Meguro
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Keywords: Silicon Nitride, CNT, Hafnium Oxide, Electrical Conductivity
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Abstract
CNT-dispersed Si3N4 ceramics was fabricated by adding HfO2 as sintering aids. As a result, the sample by adding HfO2 fired at lower temperatures showed higher bending strength and higher electrical conductivity because HfO2 promoted the densification of Si3N4 and prevented CNT from disappearance. CNT-dispersed Si3N4 ceramics by adding HfO2 added indicated higher bending strength and higher electrical conductivity than those by adding TiO2.
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© The Ceramic Society of Japan 2011
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