Antifriction properties of disulfides and diselenides with a lamellar structure
- 28 Downloads
A study was made of the antifriction properties (coefficients of friction and rates of wear) of W, Mo, Nb, and Ta disulfides and diselenides and of the complex selenides and sulfides Mo0.2Ta0.8Se2,Mo0.1 Ta0.9S2, and Mo0.25Ta8in0.75S2 in air and in a vacuum of 10−6 mm Hg.
It was established that the properties are directly related to the crystal structure of the compounds investigated.
It is shown that, to exhibit good antifriction characteristics, disulfides and diselenides should be of stoichiometric composition and should have a lamellar structure with a trigonal-prismatic coordination of the sulfur and selenium atoms.
KeywordsSulfur Sulfide Crystal Structure Selenium Disulfide
Unable to display preview. Download preview PDF.
- 1.V. V. Vainshtein and G. I. Troyanovskaya, Dry Lubricants and Self-Lubricating Materials [in Russian], Mashinostroenie (1968).Google Scholar
- 2.D. J. Boes, I.E.E.E. Trans. Aerospace,2, No. 2, 457 (1964).Google Scholar
- 3.I. Przybyszewski, Lubrication Eng., 24, No. 10, 454 (1968).Google Scholar
- 4.E. Bruce, B. Brown, and D. Beerntsen, Acta Cryst.,18, 31 (1965).Google Scholar
- 5.F. Jellinek, Acta Cryst.,13, 1021 (1960).Google Scholar
- 6.B. V. Zvyagin and S. V. Soboleva, Kristallografiya,12, 57 (1967).Google Scholar
- 7.P. S. Livshits, Brushes for Electrical Machines [in Russian], Gosenergoizdat (1961), p. 43.Google Scholar
- 8.F. Jellinek, Arkiv Kemi,20, No. 5, 447 (1963).Google Scholar
- 9.W. E. Jamison and S. L. Cosgrove, Am. Soc. Lubrication Engr. Trans.,14, No. 1, 62 (1971).Google Scholar