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

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Abstract

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.

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Acknowledgments

This work is supported by the National Natural Science Foundation of China (Grant No. 50575106) and high technology project of Jiangsu province (Grant No. BG20077046).

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Authors and Affiliations

  1. Department of Materials Science & Engineering, Nanjing University of Science and Technology, Nanjing, 210094, P.R. China

    Dangsheng Xiong, Jianming Lin & Dongli Fan

  2. Institute of Medical and Biological Engineering, School of Mechanical Engineering, University of Leeds, Leeds, LS2 9JT, UK

    Zhongmin Jin

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  1. Dangsheng Xiong
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  2. Jianming Lin
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  3. Dongli Fan
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  4. Zhongmin Jin
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Correspondence to Dangsheng Xiong.

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Xiong, D., Lin, J., Fan, D. et al. Wear of nano-TiO2/UHMWPE composites radiated by gamma ray under physiological saline water lubrication. J Mater Sci: Mater Med 18, 2131–2135 (2007). https://doi.org/10.1007/s10856-007-3199-y

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  • DOI: https://doi.org/10.1007/s10856-007-3199-y

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