INFLUENCE OF COMPOSITION ON THE HARDNESS AND THERMAL CONDUCTIVITY OF SINTERED Al-METALLIC GLASS Fe66Cr10Nb5B19 COMPOSITES
D. V. Dudina1,2, A. R. Nasyrbaev3, A. A. Sivkov3,4, M. A. Esikov1, B. B. Bokhonov2, V. I. Kvashnin1, A. V. Ukhina2, G. Y. Koga5
1Lavrentyev Institute of Hydrodynamics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
2Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
3National Research Tomsk Polytechnic University, Tomsk, Russia
4Communication Engineering College, Jilin University, Changchun, China
5Federal University of São Carlos, São Paulo, Brazil
Keywords: composite, metallic glass, aluminum, hardness, thermal conductivity, rule of mixtures
Abstract
The fabrication of Al-metallic glass (Fe66Cr10Nb5B19) composites with low residual porosity and varying component concentrations is presented. During sintering, no interfacial interactions between the composite components are observed. The hardness and thermal conductivity of the Al-metallic glass composites are experimentally determined. The experimental data are compared with values calculated using the rule of mixtures. The measured thermal conductivity of composites containing 20 and 80 vol.% metallic glass closely matches values predicted by models for parallel and series phase connectivity, respectively. The hardness values for these composites are consistent with those calculated using the Reuss and Voigt models.
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