D 63 Disintegration of a Coarse-Grained Vanadium Monoxide VOy Powder / A. A. Valeeva, D. A. Davydov, H. Schröttner, A. A. Rempel // Technical Physics. - 2009. - Vol. 54, № 11. - P1618-1621 : il. - Bibliogr. : p. 1621 (11 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): МОНООКСИД ВАНАДИЯ -- ПОРОШКИ Аннотация: A coarse grained powder of nonstoichiometric cubic vanadium monoxide VOy is disintegrated in a Retch PM 200 planetary ball mill. Milling of the coarse grained vanadium monoxide powder VOy at a rate of rotation of 500 rpm for 2 h significantly broadens diffraction lines, and the crystal structure of vanadium monoxide VO1.00 after milling remains the same. High resolution scanning electron microscopy and X-ray diffraction studies of the microstructure of vanadium monoxide demonstrate that high energy milling can produce vanadium monoxide powders with an average crystallite size of 23 ± 10 nm. The vanadium monoxide produced by milling has a crystallite size that is half the crystallite size in the titanium monoxide produced by severe plastic deformation Полный текст |