Preparation of hydroxyapatite porous ceramics with different porous structures using a hydrothermal treatment with different aqueous solutions

• KAMITAKAHARA Masanobu

  Graduate School of Environmental Studies, Tohoku University

• OHTSUKI Chikara

  Graduate School of Engineering, Nagoya 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 University

抄録

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, CaCl₂, Na₃PO₄, Na₂HPO₄, NaH₂PO₄, or H₃PO₄ at 150°C for a period of 10 h. The α-TCP phase of the porous ceramics was transformed into HA by the hydrothermal treatment in ultrapure water, NaCl, CaCl₂, Na₃PO₄ or Na₂HPO₄ solutions, to form porous ceramics consisting of rod-shaped HA particles. The size of the rod-shaped HA particles prepared in Na₃PO₄ or Na₂HPO₄ solutions was smaller than that prepared in ultrapure water, NaCl, or CaCl₂ solutions. The α-TCP phase of the porous ceramics was transformed into a biphase consisting of HA and monetite (DCPA) after treatment in NaH₂PO₄ solution, and into DCPA in the H₃PO₄ 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.<br>

収録刊行物

• Journal of the Ceramic Society of Japan

  Journal of the Ceramic Society of Japan 116 (1349), 6-9, 2008

  公益社団法人 日本セラミックス協会

キーワード

• Hydroxyapatite
• Tricalcium phosphate
• Hydrothermal tretment
• Pore structure
• Morphology

詳細情報

• CRID: 1390282680259292288
• NII論文ID: 110006614231
• NII書誌ID: AA12229489
• DOI: 10.2109/jcersj2.116.6
• COI: 1:CAS:528:DC%2BD1cXptVaktQ%3D%3D
• ISSN: 13486535
• ISSN: 18820743
• NDL書誌ID: 9312216
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9312216
• Web Site: http://www.jstage.jst.go.jp/article/jcersj2/116/1349/116_1349_6/_pdf
• 本文言語コード: en
• データソース種別:
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