Investigation of the structure parameters according to the solidification parameters for pivalic acid
Journal of Materials Science, vol.34, no.22, pp.5533-5541, 1999 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 34 Issue: 22
- Publication Date: 1999
- Doi Number: 10.1023/a:1004772730707
- Journal Name: Journal of Materials Science
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.5533-5541
- Istanbul Gelisim University Affiliated: No
Abstract
Pivalic acid was unidirectionally solidified in a temperature gradient stage. The microstructure parameters; the primary dendrite arm spacing, λ1, secondary dendrite arm spacing, λ2, 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, σ* was calculated by using the experimental values of R and V. The results were compared with the previous works.