18 آذر 1400

فرخنده مظفری

مرتبه علمی:
نشانی: دانشکده علوم و فناوری نانو و زیستی - گروه شیمی
تحصیلات: شیمی
تلفن:
دانشکده: دانشکده علوم و فناوری نانو و زیستی

مشخصات پژوهش

عنوان Improved equation of state for metals from surface tension
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
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مجله PHYSICS AND CHEMISTRY OF LIQUIDS
شناسه DOI
پژوهشگران فرخنده مظفری (نفر اول)

چکیده

The major objective of this work was the development of a reliable model to describe the volumetric properties of metals. In this regard, we have applied the Song and Mason equation of state (SM EOS) for alkaline earth metals, aluminium, Germanium, lead, antimony, Bismuth, chromium, manganese, rhodium, palladium, platinum and lanthanum. Three temperature-dependent parameters in the equation of state (EOS) have been calculated as functions of reduced temperature with the use of the law of corresponding states. It is shown that the knowledge of just surface tension and the liquid density at the normal melting point is sufficient to predict the EOS of these metals. In order to improve the predictive power of the mentioned EOS for metals, we have proposed using a simple modification. The comparison of predicted densities with literature data led to encouraging results. The average absolute deviation of calculated densities from literature values was found to be 0.29%.