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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 12    No. 6    December 2002

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Preparation for femur prosthesis of ceramic-metal combination artificial hip joint
WANG Xin-yu(王欣宇), LI Shi-pu(李世普),
CHENG Xiao-ming(陈晓明), HE Jian-hua(贺建华)

Biomedical Materials and Engineering Research Centre,
 Wuhan University of Technology,Wuhan 430070, China

Abstract:Al2O3 material was synthesized by using high purity alumina micro-powder and Mg-Zr-Y composite additives at temperature of 1600℃, which had good mechanics property of 416MPa bending strength and 5.46MPa·m1/2 fracture toughness. Femur head prosthesis of hip joint was prepared by using this material; Ti alloy femur handle was sprayed bioactive hydroxyapatite (HA) by plasma on surface, which improves the chemistry stability and biocompatibility of Ti alloy; ceramic-metal combination artificial hip joint femur prosthesis was made by combining Al2O3 femur head with Ti alloy femur handle, so the manufacturing process is improved and the property and application flexibility are advanced.

 

Key words:  Al2O3; mechanics property; femur prosthesis; spraying; combination

ISSN 1672-7029
CN 43-1423/U

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