Nano-sized α and β-TCP powders prepared by high temperature flame spray pyrolysis

Jung Sang Cho, Dae Soo Jung, Jin Man Han, Yun Chan Kang

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

Nano-sized α-TCP powders with spherical shape and non-aggregation characteristics were directly prepared by high temperature flame spray pyrolysis from the mixed spray solution of water and ethyl alcohol. The α-TCP powders prepared from the aqueous spray solution without ethyl alcohol had a bimodal size distribution with nanometer and micron sizes. Nano-sized and monodisperse α-TCP powders were prepared when the volume ratio (ethyl alcohol/distilled water, V/V) in the mixed solvent was of 40/60. The mean size of the nano-sized α-TCP powders was 32 nm. The composition ratio of calcium and phosphorous components of the nano-sized α-TCP powders was 1.49. The mean size of the spherical-like powders post-treated at a temperature of 600 °C was 57 nm. The mean size of the powders increased with increasing the post-treatment temperatures. The phase of α-TCP powders prepared by flame spray pyrolysis did not change at post-treatment temperatures below 700 °C. On the other hand, the powders post-treated at temperatures of 800 and 900 °C had single β phase of TCP.

Original languageEnglish
Pages (from-to)1288-1292
Number of pages5
JournalMaterials Science and Engineering C
Volume29
Issue number4
DOIs
Publication statusPublished - 2009 May 5
Externally publishedYes

Keywords

  • Chemical vapor deposition
  • Flame spray pyrolysis
  • Nano powder
  • Tricalcium phosphate

ASJC Scopus subject areas

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

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