A reversible high-pressure second-order phase transition in silicon carbide ceramics SiC–BeO

G. K. Safaraliev; S. N. Emirov; Sh. Sh. Shabanov; G. D. Kardashova; R. R. Akhmedov; F. G. Al-Heyun; S. Sh. Shabanov

doi:10.3103/S1062873816050154

A reversible high-pressure second-order phase transition in silicon carbide ceramics SiC–BeO

Authors: Safaraliev G.K.¹, Emirov S.N.², Shabanov S.S.¹, Kardashova G.D.¹, Akhmedov R.R.¹, Al-Heyun F.G.¹, Shabanov S.S.¹
Affiliations:
1. Dagestan State University
2. Institute of Geothermal Problems, Dagestan Scientific Center
Issue: Vol 80, No 5 (2016)
Pages: 500-503
Section: Proceedings of the International Interdisciplinary Symposium “Ordering in Minerals and Alloys” OMA-17 and Proceedings of the International Interdisciplinary Symposium “Order, Disorder, and the Properties of Oxides” ODPO-17
URL: https://journals.rcsi.science/1062-8738/article/view/184347
DOI: https://doi.org/10.3103/S1062873816050154
ID: 184347

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Abstract

Experimental measurements of the effect high pressure and temperature have on the thermal conductivity of silicon carbide SiC–BeO ceramics are presented. The pressure is varied in an interval of up to 400MPa; temperature, in the range of 273–523 K. The results reveal there is a reversible second-order phase transition at pressures of 100–150 MPa.