Rapid Sintering of Alumina in Low Pressure RF Plasma

作     者：Wenxia Pan Fanxiu Lu Toyonobu Yoshida (InstitUte of Mechanics, Chinese Academy of Sciences, Beijing 100080, China) (Material Science and Engineering School, University of Science and Technology Beliing, Beliing 100083, China) (Department of Metallurgy, 

作者机构：Institute of Mechanics Chinese Academy of Sciences Beijing 100080 China Material Science and Engineering School University of Science and Technology Beijing Beijing 100083 China Department of Metallurgy University of Tokyo Tokyo 113 Japan 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：1999年第13卷第2期

页      面：133-135页

核心收录：

学科分类：080603[工学-有色金属冶金] 08[工学] 0806[工学-冶金工程] 

基　　金：the financial support of CAS(KJ951-1-20) 国家自然科学基金(59836220) 

主　　题：plasma sintering alumina rapid heating 

摘      要：Three kinds of high-purity A12O3 powders, whose average paticle size is 0. l, 0.3 and 3.0 mp respectively, were used as thestarting power, and their compacts were fired in the radio-frequency plasma generated at a pressure of 80 Pa using N, as the working *** results show that the 0. 1 and 0.3 mp powder compacts can be sintered to nearly the theoretical density within 60 s and thissintering is almost finished in the heating period. It is concluded that the mechanism of liquid sintering, the electric charge effect of Al2O3powder, and the effect of tempetrature gradient in the compacts can affect simultaneously on the rapid densification of the compacts inthe plasma sintering.