SYNTHESIS OF MULTICOMPONENT ZRO2:WO3:AL2 O3:MGO CERAMICS
ZRO2:WO3:AL2 O3:MGO КӨП КОМПОНЕНТТІ КЕРАМИКА СИНТЕЗІ
СИНТЕЗ МНОГОКОМПОНЕНТНЫХ КЕРАМИК ZRO2:WO3:AL2 O3:MGO
Garanin Y.U.A. Shakirzyanov R.I. Kozlovskiy A.L. Shlimas D.I. Borgekov D.B.
2024Kazakh-British Technical University
Herald of the Kazakh British Technical UNiversity
2024#21Issue 1114 - 122 pp.
In this work, the phase composition and microstructure of multicomponent ZrO2:WO3:Al2 O3:MgO ceramics were studied depending on the concentration of the components. The dependences between the concentration of elements in the initial charge and the phase composition, volume shrinkage, density and microstructure of synthesized samples are determined. It was found by Raman spectroscopy that the addition of an Al2 O3:MgO mixture to the initial ZrO2:WO3 matrix does not lead to the formation of a ZrO2:WO3:Al2 O3:MgO solid solution. With an increase in the content of Al2 O3:MgO, there is an increase in volumetric shrinkage and density, which may be associated with the formation of the liquid phase of the WO3:Al2 O3 system at a temperature of 1450 °C and, as a result, more efficient migration of pores and defects to the surface. The analysis of the SEM images of the cross sections of the obtained samples showed that all samples have a developed morphology with different grain shapes.
heat-resistant materials , multicomponent ceramics , solid-phase synthesis , ZrO2:WO3:Al2 O3:MgO
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L.N. Gumilyov Eurasian National University, Astana, 010000, Kazakhstan
Astana Branch of the Institute of Nuclear Physics, Astana, 010000, Kazakhstan
L.N. Gumilyov Eurasian National University
Astana Branch of the Institute of Nuclear Physics
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