| 摘要 |
PURPOSE:To efficiently prepare a homogeneously whisker-dispersed calcium phosphate powder by treating the slurry of whisker-dispersed calcium phosphate powder with water and heat under an increased pressure with stirring. CONSTITUTION:The slurry of whisker-dispersed calcium phosphate powder is treated with water and heat under an increased pressure with stirring to homogeneously disperse the whisker in the calcium phosphate powder. The whisker used herein is preferable to be especially silicon nitride whisker. The whisker has preferably a diameter of 0.03-5mum and a length of 1-50mum. The calcium phosphate is preferably apatite hydroxide, apatite carbonate, apatite fluoride, tetracalcium phosphate, etc. The sintering of the whisker-dispersed calcium phosphate powder provides a sintered product having an excellent mechanical strength, permitting to utilize as a hard tissue substitute for living body materials, such as an artificial tooth or an artificial bone. |
