| 摘要 |
<p>A process for preparing a glass or glass-ceramic composite sintered body by a sol-gel method comprises reacting (A) at least one silicic acid ester. (B) at least one phosphorus compound. (C) at least one compound selected from the group consisting of calcium salts and calcium compounds (D-1): at least one kind of ceramics fine particles having a composition different from a sintered body obtained from components (A) to (C) or having a crystal different from crystals formed in the sintered body, (D-2): ceramic short fibers and/or whiskers. SiO2-P2O5-CaO glass or glass-ceramic composite sintered body contains at least one of ceramics short fibers and/or whiskers, and at least one of ceramics fine particles. According to the invention, there can be obtained composite sintered bodies of calcium phosphate glasses or glass-ceramics exhibiting excellent in biocompatibility in which ceramics fine particles, ceramics fibers and whiskers are uniformly dispersed and mixed, and strength, toughness and scatter of strength are effectively improved.</p> |
