کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4992159 | 1457118 | 2017 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Measurement of thermal diffusivity/thermal contact resistance using laser photothermal method at cryogenic temperatures
ترجمه فارسی عنوان
اندازه گیری مقاومت نسبی حرارتی / حرارتی با استفاده از روش فوتوترمال لیزر در دمای بحرانی
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کلمات کلیدی
روش فتوترمال لیزر، نفوذ پذیری حرارتی، مقاومت در برابر حرارت، فرمول تجربی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The Laser Photothermal Method (LPM), which is a transient non-contact technique, was employed to measure the thermal physical parameters of Stainless Steel 304 (SS304), Oxygen-Free Copper (OFC) and Aluminum Nitride (AlN) ceramics. The thermal diffusivity of SS304, OFC and AlN ceramic were measured by the LPM and some explanations for the tendency with the temperature were given. Compared with the reference values, it showed that the LPM is reliable in measuring thermal parameters. Following, the Thermal Contact Resistances (TCRs) of OFC-AlN ceramic, SS304-AlN, SS304-SS304 and AlN ceramic were measured in the temperature range from 70Â K to 300Â K and the contact pressure was on the order of 0.10Â MPa. Some explanations were given to make clear the changing trend of TCRs with the increase of temperature. Moreover, some empirical formulas of the TCRs were established. The accuracy of the establishing empirical formulas had been validated by the experiment, and the error was smaller than 9%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 111, 25 January 2017, Pages 768-775
Journal: Applied Thermal Engineering - Volume 111, 25 January 2017, Pages 768-775
نویسندگان
Bi Dongmei, Chen Huanxin, Liu Shanjian, Shen Limei,