化学修饰的纳米钛酸钙的摩擦学特性研究  

Study on Tribological Characteristic of Chemically Modified CaTiO_3 Nano-particles on Synthetic Easters

作　　者：叶斌[1] 陶德华[2] 

机构地区：[1]上海应用技术学院化工系,上海200235 [2]上海大学机械自动化学院 上海,上海200072

出　　处：《润滑与密封》2008年第3期30-31,12,共3页Lubrication Engineering

基　　金：上海市教委基金项目(04OB-18)

摘　　要：利用化学修饰法制备了纳米钛酸钙,并用TEM对其结构进行了表征。将制备的纳米钛酸钙油液加入到合成酯中,用四球摩擦磨损试验机考察了其作为润滑添加剂的摩擦学特性。结果表明:纳米钛酸钙在合成酯中具有较好的抗磨性能和良好的减摩性能,其减摩性能优于常用的极压抗磨剂。利用俄歇能谱AES测定表面膜的组成,发现纳米钛酸钙在摩擦表面的沉积及随后的剪切作用形成了具有抗磨减摩性能的摩擦膜。Nanometer particles CaTiO3 was prepared by chemically modified way and its structure was analyzed by TEM.The tribological properties of nanometer particles CaTiO3 on the synthetic ester were studied by the four-ball friction and wear tester.The results show that the antiwear characteristic of synthetic ester with modified CaTiO3 nano-particles is improved,the friction coefficient is decreased,and the load carrying capacity is raised.The composition of film on the wear surface was analyzed by auger electron ...

关 键 词：纳米钛酸钙 纳米添加剂 合成酯 摩擦学特性 摩擦机制 

分 类 号：TB381[一般工业技术—材料科学与工程]