| 摘要 |
PURPOSE: To obtain a material having the characteristics of a ceramics consisting of hydroxyapatite and combining the absorptive characteristics of tricalcium phosphate by the method wherein the bone material of removing a soft tissue is dried under a specific various temperature conditions, and the temperature is ascended under the environment of a decompression or a less air, and in next process the bone material is heated by an excessive air, and cooled down, next is treated by the stoichiometric amount of a phosphate carrier so as to convert it into a tricalcium phosphate and then sintered. CONSTITUTION: A soft tissue is removed and a bone material is dried at the temperature of less than 150 deg.C, and the temperature is ascended at approximately 550 deg.C under the environment of a decompression or less air, in next process, the bone material is heated at between 550-800 deg.C under the existence of an excessive air, and then cooled down, next the bone material is treated by the stoichiometric amount of a phosphate carrier so as to convert it into the tricalcium phosphate and then sintered at the temperature of 1,125-1,670 deg.C. As an adequate phosphate carrier, a phosphoric acid, a tricalcium phosphate, a diammonium hydrogenphosphate, or triammonium hydrogenphosphate and the like are preferable. |
