【摘要】 磷酸盐玻璃复合材料是由实验室制备的磷酸氢钙和细磨的磷酸盐玻璃熔块配制后烧成。组成中CaO/P₂O₅比可取在0.7～1.9范围内。 用差热分析、X射线衍射分析、红外吸收光谱、透射和扫描电子显微镜对材料中的晶相和显微结构作了研究。结果表明,其中主晶相为焦磷酸钙,这种晶相与局部出现不混溶的玻璃相结合在一起。由于材料中存在孔隙率,对移植将起有利的作用。 手术六个月后,人工骨与家兔骨可长合在一起。显微结构研究指出,新生骨与此种复合材料生长联结良好,虽然新陈代谢速率尚不够快。 文中还对材料在应用试验中影响新骨生长的因素作了简单的讨论。更多还原

【Abstract】 A batch of phosphate glass composite was prepared from finely pulverized homogeneousmixture of laboratory prepared CaHPO₄ and phosphate glass powder obtained from its fritwith molar ratio of CaO and P₂O₅ varying from ratio 0.7 to 1.9. The crystalline phases of thecomposites were subjected to investigations by DTA, IR spectroscopy, X-ray diffractionanalysis, TEM and SEM. Biomedical examination showed that the Ca₂P₂O₇ based glass composite was compatiblewith animal bodies. The factors affecting metabolism by application of such materials were discussed.更多还原