Precipitation behavior in a Hanks' solution on Ca-P-O films prepared by laser CVD

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4 Citations (Scopus)

Abstract

Ca-P-O films were prepared by laser CVD using Ca(dpm)2 and (C6H5O)3PO metal organic precursors. The crystal phase of Ca-P-O films changed depending on deposition temperature (Tdep), total pressure (Ptot), laser power (PL) and molar ratio of Ca to P (RCa/p). β-TCP films in a single phase were obtained in a P-rich and high 7dep region, while HAp films in a single phase were obtained in a Ca-rich and low Tdep region. The β-TCP films had a (220) orientation with an elongated and angular roof-shaped surface texture, whereas HAp films had a (300) orientation with a granular surface texture. Both the β-TCP film and the HAp film had a dense cross section. The Ca-P-O films were immersed in a Hanks' solution for 6 h to 7 d. Particle-shaped precipitates were observed on the β-TCP and HAp films after 3 d immersion. Needle-shaped precipitates covered the whole surface of HAp film after 7d immersion.

Original languageEnglish
Pages (from-to)2455-2459
Number of pages5
JournalMaterials Transactions
Volume50
Issue number10
DOIs
Publication statusPublished - 2009 Oct

Keywords

  • Hanks' solution
  • Hydroxyapatite
  • Laser chemical vapor deposition (CVD)
  • β-tricalcium phosphate

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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