Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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Transactions of Nonferrous Metals Society of China

Vol. 10    No. 4    August 2000

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Hot pressing of hydroxyapatite(HA)-Ti
material and stability of HA①
CHU Cheng-lin(储成林)1, ZHU Jing-chuan(朱景川)1, YIN Zhong-da(尹钟大)1,
LI Ming-wei(李明伟)1, WANG Shi-dong(王世栋)2, XING Shu-zhong(邢树忠)3

1. School of Materials Science and Engineering,
Harbin Institute of Technology, Harbin 150001, P.R.China;
2. Analysis and Testing Center, Southeast University, Nanjing 210018, P.R.China;
3. Stomatological Hospital, Nanjing Medical University, Nanjing 210018, P.R.China

Abstract:Hot pressing of hydroxyapatite(HA)-Ti system material and the stability of HA component were investigated to supply the foundation of optimizing sintering procedure of HA-Ti functionally graded material(FGM). The result show that the HA powders used have excellent thermal stability and no decomposition is observed at 1 300℃. The existence of Ti can promote the dehydration and decomposition of HA. However, no new compounds form between HA an
Ti. By selecting sintering parameters properly, ideal HA-Ti material can be acquired. The relative densities of the mixtures of HA and Ti are always lower than those of pure HA or Ti, which may be caused by the decomposition of HA in thmixtures.


Key words: hydroxyapatite(HA); titanium; biomaterial; functionally graded material

ISSN 1004-0609
CN 43-1238/TG

ISSN 1003-6326
CN 43-1239/TG

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