J Mater Sci Technol ›› 2010, Vol. 26 ›› Issue (7): 629-632.

• Nanomaterials and Nanotechnology • Previous Articles     Next Articles

Preparation and Tribological Behavior of BiIn/In2O3 Composite Dendritic Nanocrystals

Yanbao Zhao, Guofang Li, Zhijun Zhang   

  1. 1) Key Lab for Special Functional Materials of Ministry of Education, Henan University, Kaifeng 475004, China
    2) Department of Chemistry, Shangqiu Normal College, Shangqiu 476000, China
  • Received:2008-12-24 Revised:2010-01-21 Online:2010-07-31 Published:2010-07-26
  • Contact: Yanbao Zhao
  • Supported by:

    the National Natural Science Foundation of China (Grant Nos. 20671029 and 50701016), the Outstanding Youth Fountain of Henan Province (No. 0612002900), and Co-construction Henan University Fountain by Ministry of Education and Henan Province

Abstract:

BiIn/In2O3 composite dendritic nanocrystals were prepared by dispersing alloy droplets in paraffin oil. The morphology and structure of the alloy nanocrystals were characterized by transmission electron microscopy (TEM), X-ray photoelectron spectra (XPS), and X-ray powder diffraction (XRD). The composite nanocrystals have dendritic morphology, with an average diameter of 10 nm and lengths up to tens and even hundreds of nanometers. Tribological results indicate that the composite nanocrystals as oil additives can improve antiwear ability of base oil, which is better than that of the corresponding monometallic particles. In addition, the lubricating mechanism of the composite nanocrystals was also discussed.

Key words: Alloys, Nanostructures, Preparation, Tribology