CAJ | 학술논문

利用超音速氧焰喷涂(HVOF)在Ti6A14V基体上制备了羟基磷灰石(HA)/生物玻璃(BG)涂层,考察了涂层的相组成、表面形貌及生物活性.XRD显示:涂层的结晶相为HA,未检测到HA分解产物,添加生物玻璃不影响涂层的相组成;SEM结果表明:HA颗粒熔化较少,计算熔化比例为13%,BG颗粒以球形方式镶嵌在涂层表面,含量小于粉末中的比例:涂层浸泡在模拟体液中7天后发现:添加20%BG的涂层表面有类骨类磷灰石涂层生成,说明添加BG可以提高涂层的生物活性.
이용초음속양염분도(HVOF)재Ti6A14V기체상제비료간기린회석(HA)/생물파리(BG)도층,고찰료도층적상조성、표면형모급생물활성.XRD현시:도층적결정상위HA,미검측도HA분해산물,첨가생물파리불영향도층적상조성;SEM결과표명:HA과립용화교소,계산용화비례위13%,BG과립이구형방식양감재도층표면,함량소우분말중적비례:도층침포재모의체액중7천후발현:첨가20%BG적도층표면유류골류린회석도층생성,설명첨가BG가이제고도층적생물활성.
Hydroxyapatite (HA) coatings with bioactive glass (BG) was prepared on Ti6A14V matrix by high velocity oxygen-fuel spray. The phase morphology and bioactivity of the coatings were studied. The X-ray diffraction shows that the coatings are mainly crystalline HA and exhibit no thermal decomposition byproducts. The addition of BG does not affect the coating phases. The SEM observation shows that the HA particles are partially melted, with melting fraction of 13%, and spherical BG particles are incorporated on the HA coating. The BG content of the surface coating is lower than that in input powder. After soaking in simulated body fluid for 7 days, only the coating with 20% BG forms a bone-like apatite, which indicates that the addition of BG increases the bioactivity of the coating.