摘要
目的以粉末冶金烧成的羟基磷灰石(HA)/-β磷酸三钙(β-TCP)陶瓷为靶材,采用磁控溅射法在钛合金(Ti6Al4V)基体上制备HA/β-TCP生物涂层。方法利用XRD研究了复合涂层的晶化程度,讨论了涂层成分与生物降解性及相容性的关系。结果HA/β-TCP生物涂层为非晶态,经700℃,3h大气处理可显著提高涂层的晶化程度,当涂层成分为50wt%HA/50wt%β-TCP时其细胞相容性最好。结论在钛合金基体上制备HA/β-TCP生物涂层,通过HA与β-TCP的复合来控制材料的降解速度,使它的降解速度与周围骨组织的生长速度相匹配,使植入体具有良好的生物降解性、生物活性和力学性能。
Objective HA/I3-TCP sputtering target were prepared by powder metallurgy. HA/I3-TCP bio-composite co- ating was deposited on Ti6AL4V by radio frequency magnetron sputtering. Methods Re-crystallized level is studied by XRD. Relations between biodegradation and biocompatibility with coating component were researched. Results HA/β-TCP coating is amorphous phase. Amorphous phase is re-crystallized entirely by atmosphere-treating at 700℃ for 3h. The best biocompatibility is that when 50wt%HA/50wt%β-TCP. Conclusion HA/β-TCP bio-composite coating deposited on Ti6Al4V with adjustable bioactivity, biodegradation and mechanical properties was fabricated by radio frequency magnetron sputtering.
出处
《生物骨科材料与临床研究》
CAS
2008年第2期48-50,共3页
Orthopaedic Biomechanics Materials and Clinical Study
