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Plasma Spraying as a Technique for Dielectric Ceramics Preparation
Ctibor, Pavel ; Rohan, Pavel ; Kolman, Blahoslav Jan ; Dubský, Jiří ; Chráska, Pavel
This paper reports on plasma spraying of several synthetic titanetes.Ceramic materials CaTiO3-LaMg0,5Ti0,5O3,Zr0, 8Sn0,2TiO4 as well as mixture of geikielite-perovskite MgTiO3-CaTiO3 were sprayed using gas stabilized plasma gun.These materials are well know as microwave dielectrics. Plasma spraying was performed with the gas stabilized plasma gun Plasmatechnik HB4.Standard experimental techniques were used for studying of microstructure, chemical and
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Tribological Behaviour of Plasma Sprayed Al2O3 and Cr2O3 Coatings
Řidký, V. ; Dubský, Jiří ; Cejp, J.
Plasma sprayed ceramics coatings are well known for their wear resistance.Plasma sprayed alumina and chromia oxide coatings are widely used to improve the resistance of metallic components against various types of wear and corrosion[1,2].However, the particular structure of plasma-sprayed coatings(high porosity,cracks,nehomogenity etc.) affects their mechanical properties.
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