摘要
Cu离子由MEVVA离子注入机引出注入 0Cr18Ni9不锈钢 ,采用 6 0～ 10 0keV的能量、(0 2～ 2 0 )× 10 1 7cm- 2 剂量。计算了不同能量下Cu离子的饱和注入量、Cu注入不锈钢中浓度分布和注入层表面的Cu离子浓度。分析了注入能量、注入剂量与抗菌性能的关系 ,注入后表面的Cu离子浓度与抗菌性能的关系。计算表明 ,在不同注入能量下 ,饱和注入量是不同的。当注入量接近饱和注入量时 ,试样具有最佳的抗菌性能 ,抗菌效果与注入层表面的铜含量密切相关。
Antibacterial activity is studied by copper ion implanted into OCrl8Ni9 stainless steel. The ions are extracted from a metal vapor vacuum arc (MEVVA) equipment with 60-100 keV energy and a dose range (0.2-2.0)×1017 cm-2. Saturated doses, surface concentration were calculated and the relationships between energy, dose and antibacterial activity were analyzed. The results show that saturation dose is different from the different levels of implantation energy. When the dose approaches to the saturation dose, specimens get the best antibacterial activity. Antibacterial activity has close relation with concentration Cu in implanted layers and Cu-rich phase.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2004年第2期45-47,共3页
Transactions of Materials and Heat Treatment
基金
国家自然科学基金资助 (50 1 0 1 0 0 9)
