激光辐照对HAP生物陶瓷显微组织结构的影响

The Effect of Laser Irradiation on Microstructure of HAP Bioceramic

人工合成羟基磷灰石（ＨＡＰ）具有良好生物相容性，它与脊椎动物的牙、骨骼中ＨＡＰ的组成及原子水平上的结构极为相似，但其显微组织结构差异较大。本文研究了激光辐照对人工合成ＨＡＰ显微组织结构的影响。结果表明，在适宜的工艺参数范围内，激光处理后未发现“脱羟”，仍显示ＨＡＰ的特征峰。且ＨＡＰ的组织细化，形态改变，结构缺陷增加等，与自然骨内ＨＡＰ的近似程度增加。

The HAP that is artificially composed has a good biocompatibility.Its composition and atom-scale structure are about the same that of teeth and bone,but there is the difference on microstructure.The effect of laser irradiation on microstructure of HAP bioceramic has been studied in this paper.The results show that after laser irradiation at the proper teethnological parameters,their main phase structure is still HAP,and there are a finer microstructure,a changed morphology and a more defect,which are about the same that of body bone.