Surface modification of titanium by pack cementation treatment using calcium phosphate powders for biomedical applications |
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Authors: | Kyosuke Ueda Hajime Suto Takayuki Narushima |
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Affiliation: | (1) Faculty of Engineering, Okayama University, Tsushima, Okayama-shi 700-8530, Japan;(2) Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People Republic of China;(3) Research Center for Biomedical Engineering, Okayama University Tsushima, Okayama-shi 700-8530, Japan |
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Abstract: | The surface modification of commercially pure titanium by pack cementation treatment using hydroxyapatite (HAp) or tetracalcium phosphate (TTCP) powder was investigated for temperatures ranging from 773 K to 1073 K. An HAp phase was detected on the surface of the titanium substrates after pack cementation treatment at temperatures of 973 K and 1073 K. After treatment using HAp and TTCP powders, a reaction layer with small HAp particles and pores containing small HAp particles, respectively, was observed. Apatite crystallites with a network pattern formed on the pack-cementation-treated titanium substrates after the substrates were immersed in Kokubo solution for 43.2 ks; such rapid apatite formation suggests that pack cementation treatment improves the biocompatibility of titanium. |
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