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Öğe Dependency of the microstructure parameters on the solidification parameters for camphene(PERGAMON-ELSEVIER SCIENCE LTD, 2000) Cadirli, E; Marasli, N; Bayender, B; Gunduz, MCamphene (>95% purity) was unidirectionally solidified in a temperature gradient stage. The microstructure parameters, viz., the primary dendrite arm spacing lambda(1), secondary dendrite arm spacing lambda(2), dendrite tip radius R, and mushy zone depth d, were measured for five different growth rates in a constant temperature gradient G and for five different temperature gradients in a constant growth rate V. The dependency of the microstructure parameters on the solidification parameters (V, G, and GV) for camphene were determined by linear regression analysis. Our results are in good agreement with previous works. (C) 2000 Elsevier Science Ltd. All rights reserved.Öğe Investigation of the structure parameters according to the solidification parameters for pivalic acid(KLUWER ACADEMIC PUBL, 1999) Cadirli, E; Marasli, N; Bayender, B; Gunduz, MPivalic acid was unidirectionally solidified in a temperature gradient stage. The microstructure parameters; the primary dendrite arm spacing, lambda(1), secondary dendrite arm spacing, lambda(2), dendrite tip radius, R and mushy zone depth, d, were measured for five different growth rates in a constant temperature gradient, G and for five different temperature gradients in a constant growth rate, V. The depending of the microstructure parameters to the solidification parameters (V, G and GV) for pivalic acid were determined by linear regression analyze. The stability constant, sigma* was calculated by using the experimental values of R and V. The results were compared with the previous works. (C) 1999 Kluwer Academic Publishers.