Gas analysis in spark plasma sintering of hydroxyapatite

被引：1
|
作者：
Yamaguchi, N
Tanaka, H
Ohashi, O
机构：
[1] Niigata Univ, Dept Mech & Prod Engn, Niigata 9502181, Japan
[2] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan
来源：
DESIGNING, PROCESSING AND PROPERTIES OF ADVANCED ENGINEERING MATERIALS, PTS 1 AND 2 | 2004年 / 449-4卷
关键词：
hydroxyapatite; spark plasma sintering; gas analysis; carbon dioxide;
D O I：
10.4028/www.scientific.net/MSF.449-452.793
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：
In this paper, the effect of electric current on sintering of hydroxyapatite (HAp) in spark plasma sintering (SPS) process was investigated. The carbonate partially substituting hydroxyapatite was sintered up to 900 degreesC, and CO2 evolved from HAp powder were measured in situ by using mass spectroscopy apparatus in the same time. The same gas analysis was performed in thermal analysis as comparison. In the thermal analysis, CO2 gas was evolved at about 600 degreesC. On the other hand, in the SPS process, CO2 gas was detected at lower temperature than that of thermal analysis. This result indicates that the surface of hydroxyapatite particles would be heated up locally in SPS process due to electric current.
引用
收藏
页码：793 / 796
页数：4
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