摘要
利用磁控溅射法在医用钛合金Ti6Al4V表面制备Ti-Ag、Ti-Ag-N薄膜。采用扫描电子显微镜、X射线衍射、X射线能量色散谱、X射线光电子能谱分析薄膜的表面形貌、微观结构、化学成分和化学价态。采用平板计数法测试薄膜对大肠杆菌的抗菌性。研究结果表明:薄膜主要由Ti、Ag、(N)组成,且Ag是以Ag^0形式存在;与基材相比,两种薄膜对大肠杆菌(E.coli)均有抗菌性,且Ti-Ag-N薄膜表现出更优越的抗菌性能。
The Ti-Ag and Ti-Ag-（N）coatings were synthesized by magnetron sputtering on Ti6Al4V substrate,a Ti- based alloy and bio-compatible material. The influence of the coating conditions,including but not limited to the contents of Ti,Ag and N,bias voltage,ratio of Ar/N2 flow rates,deposition rate and pressure,on the microstructttres and antibiotic property of the coatings was experimentally investigated with scanning electron microscope, energy dispersive spec- troscopy, X-ray diffraction,X-ray photoelectron spectroscopy and in colony counting method. The results show that both the compact and smooth Ti-Ag and Ti-Ag-（N）coatings are capable of killing E. coli,because neutral Ag atoms exist on their surfaces. In addition,the antibiotic property of the Ti-Ag-N coatings was found to be much better than that of the Ti-Ag coatings.
出处
《真空科学与技术学报》
EI
CAS
CSCD
北大核心
2015年第6期703-709,共7页
Chinese Journal of Vacuum Science and Technology
基金
国家自然科学基金项目(51171125
51474154
51471191)
山西省科学技术发展项目基金项目(20110321051)
太原理工大学研究生创新基金项目
关键词
钛合金
TI6AL4V
薄膜
抗菌性
Titanium alloy,Ti6Al4V,Thin film,Antimicrobial property
