کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10391810 | 885017 | 2011 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of thermal conductivity and interfacial energy of solid Zn solution in the Zn-Al-Bi eutectic system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The equilibrated grain boundary groove shapes for solid Zn solution (Zn-3.0 at.% Al-0.3 at.% Bi) in equilibrium with the Zn-Al-Bi eutectic liquid (Zn-12.7 at.% Al-1.6 at.% Bi) have been observed from quenched sample with a radial heat flow apparatus. Gibbs-Thomson coefficient, solid-liquid interfacial energy and grain boundary energy for solid Zn solution in equilibrium with Al-Bi-Zn eutectic liquid have been determined to be (5.1 ± 0.4) Ã 10â8 K m, (80.1 ± 9.6) Ã 10â3 and (158.6 ± 20.6) Ã 10â3 J mâ2 from the observed grain boundary groove shapes, respectively. The thermal conductivity variation with temperature for solid Zn solution has been measure with radial heat flow apparatus and the value of thermal conductivity for solid Zn solution has been determined to be 135.68 W/km at the eutectic melting temperature. The thermal conductivity ratio of equilibrated eutectic liquid to solid Zn solution, R = KL(Zn)/KS(Zn) has also been measured to be 0.85 with Bridgman type solidification apparatus.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental Thermal and Fluid Science - Volume 35, Issue 2, February 2011, Pages 395-404
Journal: Experimental Thermal and Fluid Science - Volume 35, Issue 2, February 2011, Pages 395-404
نویسندگان
Sezen Aksöz, Yavuz Ocak, Necmettin MaraÅlı, Kazım KeÅlioÄlu,