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Teplofizika vysokikh temperatur, 2012, Volume 50, Issue 6, Pages 775–780
(Mi tvt461)
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This article is cited in 2 scientific papers (total in 2 papers)
Thermophysical Properties of Materials
Equilibrium vacancy parameters and limit temperature of nonequilibrium melting in osmium
V. Ya. Chekhovskoi, V. D. Tarasov Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya ul. 13, Bld. 2, Moscow, 125412, Russia
Abstract:
For osmium, based on experimental data on enthalpy and the averaged heat capacity obtained by the method of mixing within the temperature range of $1150$–$2960$ K, for the first time the parameters of the equilibrium vacancies for this metal have been determined: the vacancy formation energy $E = 1.8$ eV, the vacancy concentration at melting $c = 3.3\%$, and the vacancy formation entropy $S = 25.6$ J/(mol K). The limit temperature of the onset of nonequilibrium melting of osmium $T_{\mathrm{m}} = 4256$ K and its relative value $T_{\mathrm{lim}}/T_{\mathrm{m}} = 1.30$ has been calculated.
Received: 06.12.2011
Citation:
V. Ya. Chekhovskoi, V. D. Tarasov, “Equilibrium vacancy parameters and limit temperature of nonequilibrium melting in osmium”, TVT, 50:6 (2012), 775–780; High Temperature, 50:6 (2012), 722–727
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https://www.mathnet.ru/eng/tvt461 https://www.mathnet.ru/eng/tvt/v50/i6/p775
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Abstract page: | 188 | Full-text PDF : | 74 | References: | 44 |
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