Densification process of OH controlled hydroxyapatite ceramics by spark plasma sintering

D. Kawagoe, Y. Koga, E. H. Ishida, K. Ioku

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

Calcium hydroxyapatite, Ca10(PO4)6(OH) 2:HA, is the inorganic principle component of natural bones and teeth. It has been already suggested that the amount of OH ion in the crystal structure of HA is closely related to the biocompatibility. The amount of OH ion in current HA, however, has not been controlled. In order to prepare more functional HA ceramics, the amount of OH ion must be controlled. In this study, HA ceramics with different OH amount were prepared from fine HA crystals by spark plasma sintering (SPS). In order to reveal the ideal sintering conditions for preparation of transparent ceramics, densification process on SPS was investigated. The samples were pressed uniaxialy under 60 MPa, and then they were heated by SPS at 800 °C, 900 °C and 1000 °C for 10 min with the heating rate of 25 °Cmin-1. The quantity of OH ion in HA ceramics sintered by SPS was decreased with increasing temperature of sintering. Transparent HA ceramics were prepared by SPS at 900 °C and 1000 °C. In analysis of the densification behavior during sintering of HA by SPS, dominant sintering mechanism was plastic flow of densification. Transparent ceramics should be the most suitable materials to investigate the interface between human cells and ceramics.

本文言語English
ホスト出版物のタイトルWATER DYNAMICS
ホスト出版物のサブタイトル3rd International Workshop on Water Dynamics
ページ39-42
ページ数4
DOI
出版ステータスPublished - 2006 5月 15
外部発表はい
イベントWATER DYANMICS: 3rd International Workshop on Water Dynamics - Sendai, Japan
継続期間: 2005 11月 162005 11月 17

出版物シリーズ

名前AIP Conference Proceedings
833
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

OtherWATER DYANMICS: 3rd International Workshop on Water Dynamics
国/地域Japan
CitySendai
Period05/11/1605/11/17

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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