Control of the microstructure of porous tricalcium phosphate: Effects of addition of Mg, Zn and Fe

Masanobu Kamitakahara, Chikara Ohtsuki, Makoto Oishi, Shin Ichi Ogata, Masao Tanihara, Toshiki Miyazaki

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Tricalcium phosphate (TCP) ceramics are known as biodegradable materials for use as bone substitutes in orthopedic applications. We recently reported the fabrication of porous α-TCP ceramics with continuous pores ranging from 10 to 50 μm, through a conventional sintering process using a slurry consisting of β-TCP and potato starch. α-TCP shows higher solubility than β-TCP. Therefore, one can expect that biphasic porous ceramics consisting of α- and β-phases of TCP will allow controlled degradation in the body. In the present study, we attempted to synthesize a porous TCP body consisting of a mixture of α- and β-TCP with an additive of Mg, Zn or Fe. It was revealed that the porosity and phase of porous tricalcium phosphate can be controlled by the addition of these additives. The addition of Mg was most effective in decreasing the porosity and α-TCP content. When the Mg content was 0.1 mass%, a porous body consisting of α- and β-TCP with continuous pores ranging from 10 to 50 μm can be prepared by the conventional sintering method.

Original languageEnglish
Pages (from-to)356-359
Number of pages4
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume52
Issue number5
DOIs
Publication statusPublished - 2005 May
Externally publishedYes

Keywords

  • Biphase
  • Porosity
  • Tricalcium phosphate

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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