Influence of the degree of order and nonstoichiometry on the microstructure and microhardness of titanium monoxide


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The influence of the degree of order and nonstoichiometry on the microstructure of TiOy titanium monoxide has been studied. The microstructure of substoichiometric, stoichiometric, and superstoichiometric titanium monoxide samples has been found to be determined by the presence of various ordered phases, which nucleate and grow in a matrix consisting of the high-temperature, cubic phase. The microhardness of titanium monoxide has been shown to depend on both nonstoichiometry and the degree of order, ranging from 9.9 to 14.0 GPa. The microhardness of the ordered monoxide exceeds that of the disordered monoxide, which is due to the formation of domains of an ordered phase, which hinder dislocation motion.

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A. Valeeva

Institute of Solid State Chemistry, Ural Branch; Yeltsin Federal University

编辑信件的主要联系方式.
Email: valeeva@ihim.uran.ru
俄罗斯联邦, Pervomaiskaya ul. 91, Yekaterinburg, 620990; ul. Mira 19, Yekaterinburg, 620002

S. Rempel

Institute of Solid State Chemistry, Ural Branch; Yeltsin Federal University

Email: valeeva@ihim.uran.ru
俄罗斯联邦, Pervomaiskaya ul. 91, Yekaterinburg, 620990; ul. Mira 19, Yekaterinburg, 620002

H. Schroettner

Institute for Electron Microscopy and Nanoanalysis

Email: valeeva@ihim.uran.ru
奥地利, Steyrergasse 17/III, Graz, A-8010

A. Rempel

Institute of Solid State Chemistry, Ural Branch; Yeltsin Federal University

Email: valeeva@ihim.uran.ru
俄罗斯联邦, Pervomaiskaya ul. 91, Yekaterinburg, 620990; ul. Mira 19, Yekaterinburg, 620002

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