Effects of Sintering Conditions on Mechanical Properties of Biomedical Porous Ti Produced by Spark Plasma Sintering
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概要
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Because of its excellent biocompatibility, good corrosion resistance and relatively lower Young's modulus, Ti was suitable for biomaterial. It, however, showed still bigger Young's modulus comparing to the living bone. It was necessary to decrease the Young's modulus in order to avoid adversely affect to the bone, such as stress sheilding. In this study, porous Ti were fablicated to decrease the Young's modulus by space holder method from Ti/NaCl composites sintered using spark plasma sintering (SPS) method. The sintering condition and the size of NaCl affected to the porous structure and mechanical properties. According to the scanning electron microscope (SEM) observation and the relative density measurement of specimens sintered with several sintering conditions, the desirable sintering condition was concluded as 973 K of sintering temperature and 1.2 ks of sintering time. The specimens made from NaCl powder whose size were from 106 to 214 μm showed almost opened and connected pores. The Young's modulus was decreased with increasing the porosity.
- 2013-01-25
著者
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Tezuka Hiroyasu
Department Of Metallurgical Engineering Tokyo Institute Of Technology
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Kobayashi Equo
Department Of Metallurgy And Ceramics Science Graduate School Of Engineering Tokyo Institute Of Tech
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Kobayashi Equo
Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan
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Hasebe Tatsuya
Metallurgy and Ceramics Science, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan
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Sato Tatsuo
Precision and Intelligence Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan
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Tezuka Hiroyasu
Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan
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