Densification and properties of AN ceramic bonded carbon

被引：13
|
作者：
Chen, Weiwu [1 ]
Miyamoto, Yoshinari [1 ,2 ]
Tojo, Tetsuro [1 ,2 ]
Naito, Makio [1 ]
机构：
[1] Osaka Univ, Joining & Welding Res Inst, Ibaraki, Osaka 5670047, Japan
[2] Toyo Tanso Co Ltd, Adv Carbon Technol Ctr, Nishiyodogawa Ku, Osaka 5550011, Japan
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2012年 / 32卷 / 01期
关键词：
Sintering; Strength; Thermal conductivity; AlN; Carbon;
D O I：
10.1016/j.jeurceramsoc.2011.08.018
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：
To obtain light and tough materials with high thermal conductivity, AlN ceramic bonded carbon (AlN/CBC) composites were fabricated at temperatures from 1600 to 1900 degrees C in a short period of 5 min by the spark plasma sintering technique. All AlN/CBCs (20 vol% AlN) have unique microstructures containing carbon particles of 15 mu m in average size and continuous AlN boundary layers of 0.5-3 mu m in thickness. With an increase in sintering temperature, AlN grains grow and anchor into carbon particles, resulting in the formation of a tight bonding layer. The AlN/CBC sintered at 1900 degrees C exhibited a light weight (2.34 g/cm(3)), high bending strength (100 MPa), and high thermal conductivity (170 W/mK). (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：245 / 250
页数：6
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