Thermodynamic properties and phase equilibria in the Si-B systemстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The vapor composition and thermodynamic properties of Si-B alloys with boron content from 1.5 up to 100 at.% were investigated in the temperature interval of 1522 to 1880 K by Knudsen effusion mass spectrometry. Thermodynamic functions of the SiB6 and SiB n borides, primary solid solutions, and liquid solution were obtained. The thermodynamic functions of the Si-B melt were approximated by the ideal associated-solutions model under the assumption that only one complex, SiB3, existed. The established thermodynamic functions of the melt and of the SiB6 and SiB n compounds were used for computation of the phase diagram of the Si-B system. Good agreement with the available experimental data was obtained.