Synthesis of TiO x -based ceramics by plasma spraying

被引：1

作者：

Abduev, A. Kh. ^{[1
]}

Akhmedov, A. K. ^{[1
]}

Asvarov, A. Sh. ^{[1
,2
]}

Rabadanov, K. Sh. ^{[2
]}

Emirov, R. M. ^{[3
]}

Vashchenko, S. P. ^{[4
]}

Gulyaev, I. P. ^{[4
]}

Kuzmin, V. I. ^{[4
]}

Sergachev, D. V. ^{[4
]}

机构：

[1] RAS, Amirkhanov Inst Phys, Dagestan Sci Ctr, Makhachkala, Russia

[2] RAS, Analyt Ctr Collect Use, Dagestan Sci Ctr, Makhachkala, Russia

[3] Dagestan State Univ, Makhachkala, Russia

[4] RAS, Khristianovich Inst Theoret & Appl Mech, SB, Novosibirsk, Russia

来源：

THERMOPHYSICS AND AEROMECHANICS | 2017年 / 24卷 / 04期

关键词：

titanium oxide; rutile; plasma spraying; microstructure;

D O I：

10.1134/S086986431704014X

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Structure of ceramics obtained by the plasma spray deposition of spherical TiO2 powders has been investigated. An electron microscopy study of the surfaces and cross sections of particles in the initial powder and of the deposited ceramic coatings was performed. X-ray diffraction and Raman scattering data proved that the coatings were mainly structured as rutile. In addition, Raman and X-ray diffraction data have revealed an amorphous phase, an anatase phase, and non-stoichiometric phases Ti8O15, Ti10O19, Ti7O13, etc. being present in the coatings. The observed suppression of (011) and (111) XRD peaks and an increased intensity of (110) peak are indicative of a predominant orientation of grains in the synthesized ceramics. Mechanisms of formation of the complex coating structure are discussed.

引用

页码：621 / 627

页数：7

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