Texture development of hydroxyapatite ceramics by colloidal processing in a high magnetic field followed by sintering

Yoshio Sakka, Kazuya Takahashi, Tohru Suzuki, Shigeru Ito, Nobuyuki Matsuda

Research output: Contribution to journalArticle

16 Citations (Scopus)


Hydroxyapatite (HAP, Ca 10 (PO 4 ) 6 (OH) 2 ) is a main component in the human body and teeth, and a specific crystal orientation is required because of the different properties for each crystal plane. In this study, two types of hydroxyapatite powders were used for the fabrication of a textured HAP. The effects of the processing parameters on the orientation, such as de-agglomeration by ultrasonication and milling procedures, applied magnetic field and sintering temperatures, were examined. Using the de-agglomerated particle by a milling procedure, it is possible to control the particle orientation, but when using heavily agglomerated particles, it was impossible to control the particle orientation by applying a high magnetic field. Highly textured HAP can be fabricated by slip casting using a well-dispersed suspension in a high magnetic field followed by sintering above 1373 K.

Original languageEnglish
Pages (from-to)27-33
Number of pages7
JournalMaterials Science and Engineering A
Issue number1-2
Publication statusPublished - 2008 Feb 25
Externally publishedYes



  • Colloidal processing
  • Dispersion
  • Hydroxyapatite
  • Magnetic field
  • Texture

ASJC Scopus subject areas

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

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