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, cilt.34, sa.22, ss.5533-5541, 1999 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 34 Sayı: 22
  • Basım Tarihi: 1999
  • Doi Numarası: 10.1023/a:1004772730707
  • Dergi Adı: JOURNAL OF MATERIALS SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.5533-5541
  • Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

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.