Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10391810 | Experimental Thermal and Fluid Science | 2011 | 10 Pages |
Abstract
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.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Sezen Aksöz, Yavuz Ocak, Necmettin MaraÅlı, Kazım KeÅlioÄlu,