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

Masanobu Kamitakahara, Chikara Ohtsuki, Giichiro Kawachi, Deping Wang, Koji Ioku

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

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, Na 3PO4, Na2HPO4, NaH 2PO4, 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, CaCl 2, 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.

Original languageEnglish
Pages (from-to)6-9
Number of pages4
JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume116
Issue number1349
Publication statusPublished - 2008 Jan
Externally publishedYes

Fingerprint

Durapatite
Hydroxyapatite
ceramics
aqueous solutions
preparation
bones
Bone
rods
Water
Pore structure
regeneration
water
phosphates
Phosphates
porosity

Keywords

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

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Preparation of hydroxyapatite porous ceramics with different porous structures using a hydrothermal treatment with different aqueous solutions. / Kamitakahara, Masanobu; Ohtsuki, Chikara; Kawachi, Giichiro; Wang, Deping; Ioku, Koji.

In: Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, Vol. 116, No. 1349, 01.2008, p. 6-9.

Research output: Contribution to journalArticle

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