| 粉末冶金制备的Ti35Nb2．5Sn5HA生物复合材料的组织与性能研究 |
| |
| 引用本文： | 王晓鹏,徐丽娟,陈玉勇,肖树龙,孔凡涛,禹基道.粉末冶金制备的Ti35Nb2．5Sn5HA生物复合材料的组织与性能研究[J].钛工业进展,2011,28(5):12-16. |
| |
| 作者姓名： | 王晓鹏 徐丽娟 陈玉勇 肖树龙 孔凡涛 禹基道 |
| |
| 作者单位： | 1. 哈尔滨工业大学材料科学与工程学院,金属精密热加工国家级重点实验室,黑龙江哈尔滨150001
2. 全北国立大学先进材料工程研究部,韩国全州,561756 |
| |
| 摘 要： | 采用高能机械球磨和脉冲电流活化烧结方法制备了一种新型的不含Al、V等有毒元素的口钛合金基体的Ti35Nb2．5Sn5HA生物复合材料。研究了不同机械球磨时间球磨的Ti35Nb2．5Sn5HA粉末以及用这几种粉末烧结制备的样品微观组织和显微硬度变化，球磨时间对烧结复合材料的微观组织和性能的影响。结果表明：随着球磨时间的增加，Ti35Nb2．5Sn5HA粉末的颗粒尺寸逐渐减小，Nh和Sn开始与Ti发生固溶，形成Ti的过饱和固溶体，而且α-Ti也开始向β-Ti转化。当球磨时间达到12h，球磨粉末中α-Ti完全转化为β-Ti，粉末颗粒的平均尺寸为500nm左右。12h球磨的粉末烧结制备的复合材料具有超细晶粒尺寸，晶粒平均尺寸为200nm，这种复合材料的维氏显微硬度可以达到10187．3MPa。
|
| 关 键 词： | Ti35Nb2．5Sn5HA复合材料 高能球磨 电流活化烧结 微观结构 |
Microstructure and Properties of Ti35Nb2.5Sn5HA Biocomposites by Powder Metallurgy and Sintering |
| |
| Authors: | Wang Xiaopeng Xu Lijuan Chen Yuyong Xiao Shulong Kong Fantao Kee-Do Woo |
| |
| Affiliation: | Wang Xiaopeng1,Xu Lijuan1,Chen Yuyong1,Xiao Shulong1,Kong Fantao1,Kee-Do Woo2(1.National Key Laboratory of Science and Technology on Precision Heat Processing of Metals,Harbin Institute of Technology,Harbin 150001,China)(2.Division of Advanced Material Engineering and Research Center of Advanced Materials Technology,Chonbuk National University,Chonbuk 561-756,Korea) |
| |
| Abstract: | A novel β type Ti-35wt%Nb-2.5wt%Sn/5wt%Hydroxyapitite(HA) which is biocompatible composite without Al,V noxious elements was fabricated by pulsed current activated sintering(PCAS) at 1 100 ℃ under 60 MPa using high energy mechanical milling(HEMM).The microstructures of Ti35Nb2.5Sn/10HA powder particles and bulk composite sintered from the milled powders were studied.Results indicated that ball milling to 8 h led to the α-Ti phase transform into β-Ti phase,after ball milling for 12 h,almost all Ti transform into β-Ti phase,the particle size of composite powders ball milled for 12 h was just about 500 nm,the particle size of sintered composite was about 200 nm,so nanostructure particles were obtained.The hardness and relative density of the sintered composites both increase with increasing the ball milling time. |
| |
| Keywords: | Ti35Nb2 5Sn5HA composite high energy ball milling current activated sintering microstructure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
