CAJ | 학술논문

采用微弧氧化技术(MAO)，以纯钛(TA2)为基体，在醋酸钙和磷酸二氢钠电解液体系中，制备含羟基磷灰石(H A)的生物活性陶瓷膜，并利用扫描电子显微镜(SEM)、X 射线衍射(XRD)、X射线能谱(EDS)和红外光谱(FT-IR)对膜层进行表征，通过体外模拟体液浸泡实验检测膜层的生物活性。结果表明，纯钛经微弧氧化处理10 min后，在其表面能生成一层含羟基磷灰石成分的多孔陶瓷膜，该膜层经模拟体液浸泡48 h 后，其表面覆盖一层含有CO2-3的羟基磷灰石(类骨磷灰石)，即该陶瓷膜层具有良好的生物活性。
채용미호양화기술(MAO)，이순태(TA2)위기체，재작산개화린산이경납전해액체계중，제비함간기린회석(H A)적생물활성도자막，병이용소묘전자현미경(SEM)、X 사선연사(XRD)、X사선능보(EDS)화홍외광보(FT-IR)대막층진행표정，통과체외모의체액침포실험검측막층적생물활성。결과표명，순태경미호양화처리10 min후，재기표면능생성일층함간기린회석성분적다공도자막，해막층경모의체액침포48 h 후，기표면복개일층함유CO2-3적간기린회석(류골린회석)，즉해도자막층구유량호적생물활성。
Porous hydroxyapatite (HA )ceramic coating on pure titanium (TA2 ) substrate was fabricated by microarc oxidation (MAO ) in electrolytic solution containing calcium acetate monohydrate and sodium biphosphate dihydrate salt.The morphology,phase and composition of the coating were characterized by scanning electron microscopy (SEM),X-ray diffraction (XRD),energy dispersive X-ray spectrometry (EDS)and Fourier transmission infrared spectrometry (FT-IR).The bioactivity of the HA ceramic coating was investigated by simulated body fluid (SBF)tests invitro. The result shows that the ceramic coating was formed on pure titanium substrate,and hydroxyapatite phase was found in the ceramic coating after the microarc oxidation for 10 min.Moreover,HA ceramic coating was proved to be of excellent bioactivity from the carbonate-containing HA formation <br> on the ceramic coating surfaces.The coatings of MAO are covered completely by the carbonate-containing HA ceramic coatings after 48 h exposure to simulated body fluid.