【摘要】 利用MEVVA源强流离子注入机将银离子注入到马氏体不锈钢表面,注入能量和注入剂量分别为100keV和(0.1~8)×1017ions/cm2。选用革兰氏阳性金黄色葡萄球菌和革兰氏阴性大肠杆菌研究了银离子注入不锈钢的抗菌性能,电化学法测定了其耐蚀性能,AES分析了不锈钢注入层中主要元素的浓度分布,讨论了注入剂量与不锈钢抗菌性能及耐蚀性能的关系。研究表明:随银离子注入剂量的增加,银在注入层中的峰值浓度变化不大,但分布深度增加,马氏体不锈钢抗菌性能显著提高。在100keV注入能量、8×1017ions/cm2注入剂量条件下,银离子注入马氏体不锈钢后可以使其具有最佳的抗菌性能,但耐蚀性能略有下降。更多还原

【Abstract】 The silver ion implantation was conducted using a metal vapor vacuum arc（MEVVA） ion source.Silver implantation was carried out at the ion doses of（0.1～8）×10¹⁷ions/cm² with the energy of 100keV.The antibacterial properties of the samples were investigated using gram positive Staphylococcus aureus and gram negative Escherichia coli,the anticorrosive properties of the samples were investigated by electrochemical test and auger electronic spectrum（AES） was employed to analyze the distribution of element in materials.The relation of implantation dose with antibacterial properties and anticorrosive properties was discussed.The results show that the top value of silver content in implantation layer exhibits no significant change and the depth of the layer containing silver increases with the increasing implantation dose.Under the implantation dose of 8×10¹⁷ions/cm² and implantation energy of 100keV,stainless steel implanted with silver has the optimum antibacterial property with a little loss in anticorrosive property.更多还原