摘要
目的评价纯铌(Nb)金属在DL-α磷酸甘油与醋酸钙阳极氧化处理后的表面特性。方法所有Nb试件在模拟体液(SBF)沉浸30d。用扫描电镜观察膜层的表面形态,用X射线光电子能谱(XPS)分析膜层的电子结合能元素分布。结果 Nb试件电镜观察结果,阳极氧化处理的表面呈现多孔重叠的微孔,阳极氧化及300℃高温蒸汽压下2h热处理,SBF沉积后的表面呈现微细的结晶,其微孔逐渐减少。XPS分析所有Nb试样上观察Nb、Ca、C、O谱及微量的P谱。结论阳极氧化及热处理可诱导Nb金属表面形成氧化膜层,提高其生物活性。
Objective This study examined the surface characteristics of the pure niobium anodized in the DL-α-glycerophosphate （DL-α-GP） and calcium acetate （CA）. Methods All specimens were immersed in the SBF （simulated body fluid） for 30 days. The surface of specimen was characterized by scanning electron microscope （SEM） and X-ray photoemission spectroscopy （XPS） test. Results Under the SEM,overlapping micro-holes were observed to emerged on the surface of the anodized specimens,while for the specimens serially treated by anodization,simulated body fluid immersion and 300℃ 2-h hydrothermal treatment by high-pressure steam,hydroxyapatite micro-crystals were observed to precipitated on the surface and the size of the micro-holes decreased gradually. In the XPS pattern,O,Nb,C,Ca and P peaks were found. Conclusion Nb can be used as a bioactive material after the treatment of anodizing and hydrothermal process.
出处
《中华口腔医学研究杂志（电子版）》
CAS
2010年第5期33-36,共4页
Chinese Journal of Stomatological Research(Electronic Edition)
基金
山东省自然科学基金重点项目(Z2006C01)
教育部留学回国人员科研启动基金
滨州医学院学科带头人与学术骨干支持计划项目(510699)
关键词
水热处理
铌
模拟体液
阳极氧化
X射线光电子能谱
Hydrothermal treatment Niobium Simulated body fluid Anodizing X-ray photoelectron spectroscopy
