Premium
Synthesis and tribological properties of NbSe 3 nanofibers and NbSe 2 microsheets
Author(s) -
Tang Hua,
Li Changsheng,
Yang Xiaofei,
Mo Chaochao,
Cao Kesheng,
Yan Fengyuan
Publication year - 2011
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201100030
Subject(s) - tribology , scanning electron microscope , nanofiber , materials science , base (topology) , chemical engineering , nanotechnology , composite material , mathematical analysis , mathematics , engineering
NbSe 3 nanofibers and NbSe 2 sheets were prepared by solid state reaction. The as‐prepared products are characterized by powder X‐ray diffraction (XRD), and scanning electron microscopy (SEM). The results showed that the obtained NbSe 3 nanofibers have a diameter in the range of 100–300 nm and length about 10 μm, while the NbSe 2 sheets have a hexagon structure. The tribological properties of the as‐prepared NbSe x powders as additives in HVI500 base oil were investigated on UMT‐2 multispecimen tribo‐tester. The wear scars were measured by VEECO WYKO NT1100 non‐contact optical profile testing instrument. It is found that the addition of both NbSe x nanofibers/sheets improves the tribological properties of base oil. Furthermore, NbSe 2 sheets exhibit better friction reduction and wear resistance properties than NbSe 3 nanofibers in HVI500 base oil. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)