Preparation of hydroxyapatite porous ceramics with different porous structures using a hydrothermal treatment with different aqueous solutions(<Feature> Ceramics for Biomedical Applications in Asian Countries)

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概要

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• Hydroxyapatite (HA) porous ceramics are useful for bone regeneration because HA shows a bone-bonding capability. The preparation of HA porous ceramics with controlled pore structures was attempted using a hydrothermal treatment of porous ceramics consisting of alpha tricalcium phosphate (α-TCP). The α-TCP porous ceramics were hydrothermally treated with various aqueous solutions containing NaCl, CaCl_2, Na_3PO_4, Na_2HPO_4, NaH_2PO_4, or H_3PO_4 at 150℃ for a period of 10h. The α-TCP phase of the porous ceramics was transformed into HA by the hydrothermal treatment in ultrapure water, NaCl, CaCl_2, Na_3PO_4 or Na_2HPO_4 solutions, to form porous ceramics consisting of rod-shaped HA particles. The size of the rod-shaped HA particles prepared in Na_3PO_4 or Na_2HPO_4 solutions was smaller than that prepared in ultrapure water, NaCl, or CaCl_2 solutions. The α-TCP phase of the porous ceramics was transformed into a biphase consisting of HA and monetite (DCPA) after treatment in NaH_2PO_4 solution, and into DCPA in the H_3PO_4 solution, resulting in porous ceramics consisting of plate-shaped particles. These results indicate that we could control the size and shape of the HA particles using the hydrothermal conditions, and this also provides a way of controlling the porous structure of the HA porous ceramics.

• 社団法人日本セラミックス協会の論文
• 2008-01-01

著者

• KAMITAKAHARA Masanobu

  Graduate School of Environmental Studies, Tohoku University

• OHTSUKI Chikara

  Graduate school of Engineering, Nagoya University

• Kamitakahara Masanobu

  Graduate School Of Environmental Studies Tohoku University

• Kamitakahara Masanobu

  Graduate School Of Environmental Studies Tohoku Univ.

• Ohtsuki Chikara

  Department Of Crystalline Materials Science Graduate School Of Engineering Nagoya University

• Ohtsuki Chikara

  Graduate School Of Engineering Nagoya Univ.

• Ohtsuki C

  Department Of Crystalline Materials Science Graduate School Of Engineering Nagoya University

• Ohtsuki Chikara

  Dep. Of Crystalline Materials Sci. Graduate School Engineering Nagoya Univ.

• Ohtsuki Chikara

  奈良先端科学技術大学院大学 物質創成科学研究科

• KAWACHI Giichiro

  Department of Biomaterials, Faculty of Dental Science, Kyushu University

• Ohtsuki Chikara

  Graduate School Of Engineering Nagoya University

• IOKU Koji

  Graduate School of Environmental Studies, Tohoku University

• KAWACHI Giichiro

  Graduate School of Engineering, Nagoya University

• WANG Deping

  School of Material Science and Engineering, Tongji University

• Ioku Koji

  Graduate School Of Environmental Studies Tohoku Univ.

• Wang Deping

  The Institute Of Bioengineering And Information Technology Materials School Of Material Science And

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