Equilibrium Concentration of Vacancies in Titanium Monoxide under High Pressure
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概要
- 論文の詳細を見る
A simple statistical thermodynamical calculation is made to estimate an equilibrium concentration of vacancies under high pressure in titanium monoxide which contains an abnormally large number of vacancies in both titanium and oxygen lattice sites. Work necessary to create a vacancy, interaction energies between vacancies and entropy of mixing is taken into account in deriving Gibbs free energy of a titanium monoxide crystal. The contribution to the free energy from thermal vibration is also considered. The result of calculation shows that the concentration of vacancies, that is 14.5% at 1 bar, decreases to 10-14% under the pressure as high as 100 kbar, the amount of decrease being dependent on the parameters chosen. Discussion is given in terms of this theoretical prediction on the results of recent high pressure experiments made on titanium monoxides.
- 社団法人応用物理学会の論文
- 1971-09-05
著者
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Iwasaki Hiroshi
The Research Institute For Iron Steel And Other Metals Tohoku University
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Iwasaki Hiroshi
The Research Instisuse For Iron Steel And Other Metals Tohoku University
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