%0 Journal Article %T Preparation and Tribological Properties of Surface-modified Borate Magnesium Nanoparticles %A HAO Li-Feng %A LI Jiu-Sheng %A XU Xiao-Hong %A REN Tian-Hui %J 无机材料学报 %D 2010 %I Science Press %R 10.3724/sp.j.1077.2010.01330 %X To develop a potential substitute for sulfurized olefins, surface-modified borate magnesium nanoparticles (titled as T-MgBN) were synthesized. The composition and microstructures of the as-obtained samples were characterized by inductively coupled plasma atomic emission spectroscopy (ICP-AES), X-ray power diffraction (XRD) and transmission electron microscope (TEM). The results indicate that T-MgBN with the size of around 50 nm is amorphous, and the appearance is irregular sheet. The tribological properties of T-MgBN in base oil evaluated using four-ball tribometer show that T-MgBN has better tribological capacity in base oil than that of T321. SEM and XPS analysis of the worn surface prove that there exists a wear resistance film which contains depositions and tribochemical reaction products (B2O3, FeB, Fe2O3 and BN) on the worn surfaces. %K borate magnesium %K blending oil %K sulfurized olefin %K tribological property %U http://www.jim.org.cn/fileup/PDF/20101219.pdf