Experimental Determination of Interfacial Energies for Solid Sn in Equilibrium with Sn-Mg-Zn Liquid

Yemliha Altıntas; Esra Öztürk; Sezen Aksöz; Kâzım Keşlioğlu; Necmettin Maraşlı

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자료유형: 학술저널

저자정보: Yemliha Altıntas Esra Öztürk Sezen Aksöz Kâzım Keşlioğlu Necmettin Maraşlı

저널정보: 대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.21 No.2

발행연도: 2015.1

수록면: 286 - 294 (9page)

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The equilibrated grain boundary groove shapes of solid Sn in equilibrium with Sn-Mg-Zn liquid were observedfrom a quenched sample by using a radial heat flow apparatus. The Gibbs-Thomson coefficient, solid-liquidinterfacial energy and grain boundary energy of solid Sn were determined from the observed grain boundarygroove shapes. The thermal conductivity of the eutectic solid phase for Sn-8.12 at% Mg-4.97 at% Zn alloy and thethermal conductivity ratio of the liquid phase to the solid phase for Sn-8.12 at% Mg-4.97 at% Zn alloy at eutectictemperature were also measured with a radial heat flow apparatus and a Bridgman-type growth apparatus,respectively. The Gibbs-Thomson coefficient, solid-liquid interfacial energy and grain boundary energy of solidSn in equilibrium with Sn-Mg-Zn liquid were determined to be (8.3 ± 0.6)×10-8 Km, (118.5 ± 14.2)×10-3 Jm-2and (225.1 ± 29.3)×10-3 J m-2 respectively from observed grain boundary groove shapes. A comparison ofpresent results for solid Sn in the Sn-8.12 at% Mg-4.97 at% Zn alloy with the results obtained in previous worksfor similar solid Sn in equilibrium with different binary or ternary liquid was made.

#alloys #solidification #interfaces #thernal conductivity #thermal analysis

참고문헌 (39)

참고문헌 신청

N. Eustathopoulos / 1999 / Wettability at High Temperatures / Pergamon Materials Series :148

J. W. Martin / 1997 / Stability of Microstructure in Metallic Systems / Cambridge University Press :27

D. Turnbull / 1950 / J. Appl. Phys 21:1022

D. R. H. Jones / 1974 / J. Mater. Sci 9:1

N. Eustathopoulos / 1983 / Int. Met. Rev 28:189

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