| 摘要 |
A bone substitute material comprising a base material comprising titanium or its alloy and, formed on the surface thereof, a coating containing a titanium oxide phase and a noncrystalline alkali titanate phase; and a process for producing the same by immering a base material comprising titanium or its alloy in an alkali solution and heating the material to temperature lower than the transition point of titanium or its alloy. The invention material comprises a titanium and apatite bonded to each other firmly, has both of the fracture toughness of titanium and the bioactivity of apatite, and is available at a low cost.
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