Novel machinable calcium phosphate glass-ceramics for biomedical use

Toshihiro Kasuga, Masayuki Nogami, Mitsuo Niinomi

研究成果: Conference article査読

3 被引用数 (Scopus)

抄録

SiO2-free calcium phosphate glass-ceramics with easy machinability were prepared by heat-treatment of a 60CaO-30P2O5-3TiO2-7Na2O (in mol%) glass. The glass-ceramics containing β-Ca2P2O7 and β-Ca3(PO4)2 crystals were found to show good machinability, as confirmed by a drilling test using a conventional carbide tool. SEM observation of the glass-ceramic showed that β-Ca2P2O7 crystals having a layered morphology are interlocking one another; plate-like crystals of several tens nanometers in thickness are piled up. The easy machinability of the glass-ceramics was suggested to result from the cleavage of β-Ca2P2O7 crystals precipitated in the glass. The glass-ceramics formed bonelike apatite crystals on the surface in simulated body fluid. The glass-ceramics were also found to be strongly joined with a new β-type titanium alloy, Ti-29Nb-13Ta-4.6Zr, by heating in air.

本文言語English
ページ(範囲)3183-3188
ページ数6
ジャーナルMaterials Science Forum
426-432
4
DOI
出版ステータスPublished - 2003
外部発表はい
イベントThermec 2003 Processing and Manufacturing of Advanced Materials - Madrid, Spain
継続期間: 2003 7 72003 7 11

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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