Measurement of solid-liquid interfacial energy in succinonitrile-pyrene eutectic system

被引：27
|
作者：
Böyük, U
Keslioglu, K [1 ]
Erol, M
Marasli, N
机构：
[1] Erciyes Univ, Fac Arts & Sci, Dept Phys, TR-38039 Kayseri, Turkey
[2] Erciyes Univ, Fac Arts & Sci, Dept Phys, TR-66100 Yozgat, Turkey
来源：
MATERIALS LETTERS | 2005年 / 59卷 / 23期
关键词：
crystal growth; grain boundaries; metal and alloys; interfacial energy;
D O I：
10.1016/j.matlet.2005.03.071
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The equilibrated grain boundary groove shapes for solid succinonitrile (SCN)-liquid SCN Pyrene (PY) were directly observed. From the observed grain boundary groove shapes, the Gibbs-Thomson coefficient for solid SCN in equilibrium with the SCN-PY eutectic liquid has been determined to be (5.21 +/- 0.26) x 10(-8) K m with numerical method. The solid-liquid interface energy for the solid SCN in equilibrium with the SCN-PY eutectic liquid has been obtained to be (9.58 +/- 0.96) x 10(-3) J m(-2) from the Gibbs-Thomson equation. The grain boundary energy of SCN rich phase of the SCN-PY system has been determined to be (18.30 +/- 2.38) x 10(-3) J m(-2) from the observed grain boundary groove shapes. The thermal conductivity ratio of the liquid phase to the solid phase-for SCN-3 mol% PY alloy has also been measured. (C) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：2953 / 2958
页数：6
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