Investigation of the structure parameters according to the solidification parameters for pivalic acid


CADIRLI E., Marasli N. , BAYENDER B., GUNDUZ M.

JOURNAL OF MATERIALS SCIENCE, vol.34, no.22, pp.5533-5541, 1999 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 34 Issue: 22
  • Publication Date: 1999
  • Doi Number: 10.1023/a:1004772730707
  • Title of Journal : JOURNAL OF MATERIALS SCIENCE
  • Page Numbers: pp.5533-5541

Abstract

Pivalic 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.