Biocompatible whiskers with controlled morphology and stoichiometry

Wojciech Suchanek, Hiroyuki Suda, Masatomo Yashima, Masato Kakihana, Masahiro Yoshimura

Research output: Contribution to journalArticlepeer-review

78 Citations (Scopus)

Abstract

Hydroxyapatite whiskers have been prepared by the hydrothermal method. The crystals had diameter, length, and aspect ratio in the range of 1–10μm, 30–50μm, and 5–20, respectively. Their Ca/P molar ratio varied from 1.59 to 1.62. The morphology of the crystals can easily be controlled by the concentrations of species in the starting solution, while the Ca/P ratio is almost independent of them. Through the reaction with calcite powder at 600 °C, the Ca/P ratio of the whiskers has been improved even to the stoichiometric value of 1.67. Taking into account morphology and chemical composition of the HAp whiskers, they should not be health hazardous and may find applications as substitutes for asbestos and other fibrous materials which presently have restricted use because of their carcinogenic natures.

Original languageEnglish
Pages (from-to)521-529
Number of pages9
JournalJournal of Materials Research
Volume10
Issue number3
DOIs
Publication statusPublished - 1995 Jan 1
Externally publishedYes

ASJC Scopus subject areas

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

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