It is shown that composite materials (CM) can be synthesized on the basis of Sr-anortite glass ceramic with BNhex, α-Si3N4, β-Si3N4 and TiC powders introduced as disperse fillers. It is shown that the mechanism and temperature range of sintering in obtaining CM are determined by the chemical composition and dispersity of the matrix glass powder, while the degree of compaction and the structure of the composite depend on the dispersity of the fillers, particle shape, particle proneness toward aggregation and wettability by the glass phase of the matrix. It is established that the introduction of BNhex particles decreases the dielectric permittivity of the Sr-anortite glass ceramic. Silicon nitride powder increased the critical coefficient of intensity of the stresses in the matrix by more than a factor of 2.5. Reinforcement with TiC particles increases the elastic modulus and microhardness and decreases the coefficient of friction of CM compared with the initial glass ceramic.
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Translated from Steklo i Keramika, No. 4, pp. 41 – 46, April, 2013.
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Orlova, L.A., Chainikova, A.S., Popovich, N.V. et al. Composites based on aluminum-silicate glass ceramic with discrete fillers. Glass Ceram 70, 149–154 (2013). https://doi.org/10.1007/s10717-013-9529-2
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DOI: https://doi.org/10.1007/s10717-013-9529-2