Effect of molding pressure on fabrication of low-crystalline calcite block

Xin Lin, Shigeki Matsuya, Masaharu Nakagawa, Yoshihiro Terada, Kunio Ishikawa

研究成果: ジャーナルへの寄稿学術誌査読

37 被引用数 (Scopus)


We have reported that low-crystalline porous calcite block, which is useful as a bone substitute or a source material to prepare apatite-type bone fillers could be fabricated by exposing calcium hydroxide compact to carbon dioxide gas saturated with water vapor. In the present study, we investigated the effect of molding pressure on the transformation of calcium hydroxide into calcite and the mechanical strength of the carbonated compact. Transformation into calcite was almost completed within 72 h, however, a small amount of Ca(OH)2 still remained unreacted at higher molding pressure because of incomplete penetration of CO2 gas into the interparticle space due to dense packing of Ca(OH)2 particles. On the other hand, high molding pressure resulted in an increase in diametral tensile strength (DTS) of the calcite compact formed. Critical porosity of the calcite block was calculated as approximately 68%.

ジャーナルJournal of Materials Science: Materials in Medicine
出版ステータス出版済み - 2月 2008

!!!All Science Journal Classification (ASJC) codes

  • 生物理学
  • バイオエンジニアリング
  • 生体材料
  • 生体医工学


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