Effects of ethanol addition on formation of hydroxyapatite through hydrothermal treatment of dicalcium phosphate dihydrate

T. Goto, M. Kamitakahara, I. Y. Kim, C. Ohtsuki

Research output: Contribution to journalConference article

Abstract

The mixture of dicalcium phosphate dihydrate (DCPD) and calcium acetate monohydrate were hydrothermally treated in a condition of water-ethanol mixed solvent at 120 °C for various periods. The rate of hydroxyapatite (HAp) formation was decreased with increasing the volume ratio of ethanol, to result in formation of dicalcium phosphate anhydrous and β-tricalcium phosphate. Needle-like HAp particles were observed in the sample treated with the mere water. The sample treated with the ethanol-water mixed solvent had nano-sized HAp particles with a form of the plate-like crystals. The size of HAp crystal was decreased with increasing the fraction of ethanol. These results show that HAp formation and crystal growth were prevented by the ethanol addition.

Original languageEnglish
Article number192015
JournalIOP Conference Series: Materials Science and Engineering
Volume18
Issue numberSYMPOSIUM 13
DOIs
Publication statusPublished - 2011 Aug 31
Event3rd International Congress on Ceramics, ICC3 - Osaka, Japan
Duration: 2010 Nov 142010 Nov 18

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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