Sinterable powder fabrication of lanthanum silicate oxyapatite based on solid-state reaction method

Kiyoshi Kobayashi, Kenya Hirai, Tohru Suzuki, Tetsuo Uchikoshi, Takaya Akashi, Yoshio Sakka

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5 Citations (Scopus)


Sinterable lanthanum silicate oxyapatite (LSO) powders were prepared by the combination of solid-state reaction synthesis and particle size control via planetary ball-milling.We successfully fabricated the LSO ceramics with relative densities exceeding 94% at 1773K even though it was suggested that the densified LSO ceramics could not be obtained below 1923K using a powder synthesized by a solid-state reaction. Impurity phases resulting from contamination due to the ball and pod during the planetary ball milling were, in some cases, detected by the X-ray diffraction analysis of the sintered ceramics. The planetary ball-milling conditions were deemed important for the successful fabrication of the sinterable LSO powder.

Original languageEnglish
Pages (from-to)274-279
Number of pages6
JournalJournal of the Ceramic Society of Japan
Issue number1436
Publication statusPublished - 2015 Apr 1
Externally publishedYes



  • Lanthanum silicate
  • Oxyapatite
  • Planetary ball milling
  • Sinter
  • Solid-state reaction

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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