中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 10 No. 4 August 2000 |
material and stability of HA①
（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
