Wear of nano-TiO2/UHMWPE composites radiated by gamma ray under physiological saline water lubrication

被引：37

作者：

Xiong, Dangsheng ^{[1
]}

Lin, Jianming

Fan, Dongli

Jin, Zhongmin

机构：

[1] Nanjing Univ Sci & Technol, Dept Mat Sci & Technol, Nanjing 210094, Peoples R China

[2] Univ Leeds, Sch Mech Engn, Inst Med & Biol Engn, Leeds LS2 9JT, W Yorkshire, England

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE | 2007年 / 18卷 / 11期

关键词：

D O I：

10.1007/s10856-007-3199-y

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Nano-TiO2/UHMWPE composites were prepared by hot press procedure, and then radiated by gamma ray in dose of 120 kGy, 250 kGy and 500 kGy. The hardness of the composites was initially determined. Subsequently the wear against a CoCrMo alloy counterface were tested in a knee simulator under physiological saline lubrication. The morphologies of the worn surfaces were examined with optical microscope. The structure of the samples was determined by IR and XRD. The results showed that the wear rate of the composite UHMWPE decreased when filled with proper amount of nano-TiO2 and with the radiation dose.

引用

页码：2131 / 2135

页数：5

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