Abstract
The research is devoted to the multicomponent system CaTiSiO5-YFeSnO5. The synthesis of solid solutions Ca1-xYxTi1-xSnxSi1-xFexO5 (x = 0 - 1.0, Δx = 0.1) was conducted in low-temperature plasma of hydrogen-oxygen flame. It was found that ions Ca2+, Ti4+ and Si4+ in the molecule of titanit may be substituted with t ions Y3+, Fe3+ and Sn4+. In this case, the system produces two phases of variable composition with broad regions of homogeneity. There were defined the boundaries of formed phases, crystallographic and electrical parameters of the solid solutions. All solid solutions have a semiconductor conductivity type, whose value is linearly dependent on the temperature and com- position of the sample.
Highlights
Metal oxides containing transition elements possess unique physical properties, they are subject to numerous scientific studies and are successfully used in modern electronics
Complex oxides containing delements, including oxides having the structure of sphene are of great practical interest
Propensity compounds with sphene form solid solutions with wide homogeneity region containing transition elements, indicates the perspective of their application as radio materials
Summary
Metal oxides containing transition elements possess unique physical properties, they are subject to numerous scientific studies and are successfully used in modern electronics. Complex oxides containing delements, including oxides having the structure of sphene (titanite CaTiSiO5) are of great practical interest. Synthesis and study of solid solutions with the structure of sphene containing transition elements is of theoretical and of practical interest. Propensity compounds with sphene form solid solutions with wide homogeneity region containing transition elements, indicates the perspective of their application as radio materials. Possibility of full or partial replacement of the atoms in the crystal lattice of sphene leads to a natural change in the physical properties, representing both theoretical and practical interest.
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