کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4769495 1426201 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measurement of spectral emissivity and constant pressure heat capacity of liquid platinum with an electrostatic levitator
ترجمه فارسی عنوان
اندازه گیری میزان اشباع طیفی و ظرفیت حرارتی ثابت پلاتین مایع با توزیع الکترواستاتیک
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Spectral emissivity and constant heat capacity of molten platinum at its melting temperature were measured. A sample was levitated in an electrostatic levitator and the radiation intensity from the molten sample was measured by spectrometers over a wide wavelength range. The spectrometers were calibrated with a blackbody radiation furnace and the spectral hemispherical emissivity was obtained. The obtained emissivity showed a negative wavelength dependence, which can be explained by Drude model. The total hemispherical emissivity of platinum at the melting temperature calculated by integrating the spectral hemispherical emissivity was found to be 0.25. Also, the constant pressure heat capacity was calculated to be 38.8 J·mol−1·K−1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Chemical Thermodynamics - Volume 112, September 2017, Pages 7-12
نویسندگان
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