Paper Title:
Gas Analysis in Spark Plasma Sintering of Hydroxyapatite
  Abstract

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 °C, 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 °C. 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.

  Info
Periodical
Materials Science Forum (Volumes 449-452)
Edited by
S.-G. Kang and T. Kobayashi
Pages
793-796
DOI
10.4028/www.scientific.net/MSF.449-452.793
Citation
N. Yamaguchi, H. Tanaka, O. Ohashi, "Gas Analysis in Spark Plasma Sintering of Hydroxyapatite", Materials Science Forum, Vols. 449-452, pp. 793-796, 2004
Online since
March 2004
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ming Hao Fang, Wei Pan, Zhen Yi Fang, Sui Lin Shi, Qiang Xu
Abstract:Pure Strontium barium niobate, Sr0.5Ba0.5Nb2O6 (SBN50), was synthesized successfully by spark plasma sintering from two mixtures:...
767
Authors: Jo Dweck, L.C. Morais, J.C. Meneses, Pedro M. Büchler
Abstract:Municipal sludge waste combustion was studied by thermogravimetry (TG) and differential thermal analysis (DTA), to better understand the two...
740
Authors: Sang Hyeok Im, Nam Jin Kim, Dong Hwan Kim, Jae Young Kweon, Dong Keon Koo, Tae Hee Kim, Seong Hyeon Heo, Duck Ki Yoon, Bong Ki Ryu
Abstract:The study investigated the crystallization and sintering behavior in Li2O-Al2O3-SiO2 (LAS) glass powder. The sintered sample was produced...
753
Authors: Li Min Gao, Guang Chuan Liang, Li Wang, Xiao Ke Zhi, Xiao Fei Jie
Abstract:LiFePO4/C powders were synthesized by carbothermal reduction method using Li2CO3 (A.R), FePO4 (A.R) and glucose as raw materials. In this...
248
Authors: Fu Sheng Song
Abstract:Using tetraethoxysilane, aluminum nitrate and aluminum fluoride as raw materials, the precursor of mullite was prepared by sol-gel process....
2640