Effect of ball milling process on the microstructure of titanium-nanohydroxyapatite composite powder

作     者：PANG Pengsha LI Wei LIU Ying PANG Pengsha1, 2), LI Wei1), and LIU Ying1) 1) Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China 2) GRIPM Advanced Materials Co. Ltd, General Research Institute for Nonferrous Metals, Beijing 100088, China

作者机构：Department of Materials Science and Engineering Jinan University Guangzhou 510632 China GRIPM Advanced Materials Co. Ltd General Research Institute for Nonferrous Metals Beijing 100088 China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2007年第26卷第2期

页      面：118-123页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：This work was financially supported by the Science and Technology Key Project of Guangdong Province  China (No.2006B35801001) 

主　　题：composite materials nanocomposites mechanical milling titanium nanohydroxyapatite 

摘      要：Titaninm-nanohydroxyapatite （Ti-nHA） composite powders, composed of titanium with 10 vol.% and 20 vol.% of nano-hydroxyapatite, were milled in a planetary ball mill using alcohol media to avoid excessive heat. XRD and SEM were performed for characterization of the microstructure, and the homogeneity of Ti/HA nanocomposite powder was evaluated by EPMA with prolonged ball milling time. The results show that under the condition of wet milling, the grain size of Ti-nHA composite powders is decreased with the increase in ball milling time and the amount of the addition of nHA. While for milling of 30 h, the nanocomposite powder with free structure, which consists of the nano-hydroxyapatite （nHA） particles and titanium （Ti） phase, is obtained. Three stages of milling can be observed from the dement mapping of Ti, Ca, and P by EPMA; meanwhile, it is found that the nHA would be more homogenously distributed after milling for 30 h.