Abstract
Fabrication processes for sinterable powder of lanthanum silicate oxyapatite are reviewed. Although the sinterable powder of the lanthanum silicate oxyapatite has been mainly prepared by sol-gel method before 2014, more simple process by combinations of solid state reaction and planetary- ball mill has been developed. Based on the powder morphology and agglomeration control, sintering temperature for dense ceramics fabrication gradually decrease until about 1673 K. On the other hand, reported data on the oxygen-ion conductivity show large scattering by each paper.