DETERMINATION OF ANISOTROPY OF CRYSTAL-MELT INTERFACIAL ENERGY FROM THE OBSERVED GRAIN BOUNDARY GROOVE SHAPES AT MULTIPLE ORIENTATIONS

Mustafa Erol (), Necmetti̇n Maraşli and Uğur Böyük
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Mustafa Erol: Department of Physics, Faculty of Arts & Science, Bozok University, Yozgat 66100, Turkey
Necmetti̇n Maraşli: Department of Physics, Faculty of Arts & Science, Erciyes University, Kayseri 38039, Turkey
Uğur Böyük: Department of Science Education, Faculty of Education, Erciyes University, Kayseri 38039, Turkey

Surface Review and Letters (SRL), 2009, vol. 16, issue 04, 579-588

Abstract: A specialized high-precision thermal gradient furnace with a rotating stage was developed forin situobservation of the equilibrated grain boundary groove shapes at multiple crystallographic orientations in transparent materials. Anisotropies of solid–liquid interfacial free energy for the distillated succinonitrile (SCN) and pivalic acid (PVA) are determined experimentally through direct observation of the equilibrated grain boundary grooves at the multiple crystallographic orientations stabilized within a controlled thermal gradient. The average anisotropies of solid–liquid interfacial energy for distillated SCN and PVA are found to be 0.42 and 3.12% from observed grain boundary groove shapes at multiple crystallographic orientations. Details related to the experimental apparatus and experimental procedures are given.

Keywords: Anisotropy; solid–liquid interfacial energy; grain boundary groove (search for similar items in EconPapers)
Date: 2009
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DOI: 10.1142/S0218625X09012974

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