DENDRITIC GROWTH OF THE BINARY SUCCINONITRILE-CAMPHOR SYSTEM

E. Çadirli () and H. Kaya
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E. Çadirli: Niğde University, Faculty of Arts and Sciences, Department of Physics, 51200, Niğde-Turkey, Turkey
H. Kaya: Erciyes University, Education Faculty, Department of Science Education, 38039, Kayseri-Turkey, Turkey

Surface Review and Letters (SRL), 2007, vol. 14, issue 06, 1169-1179

Abstract: Succinonitrile (SCN)–2 wt% Camphor (CAMP) alloy was unidirectionally solidified with a constant temperature gradient(G = 3.01K/mm)at different growth rates(V = 6.5–113 μm/s)and with a constant growth rate(V = 6.5 μm/s)at different temperature gradients(G = 1.93 - 3.01K/mm). Microstructural parameters (primary dendrite arm spacings, λ1, secondary dendrite arm spacings, λ2, dendrite tip radius,R, and mushy zone depth,d) were measured as a function of growth rate and temperature gradient. The experimental results have been compared with theoretical models and previous experimental works. The stability constant (σ) for this alloy system was calculated and compared with similar experimental results.

Keywords: Dendrites; directional solidification; organic compounds (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1142/S0218625X07010767

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