Author(s)

J.C. LaCombe, M.B. Koss, A.O. Lupulescu, I.E. Frei & M.E. Glicksman

Abstract

The three-dimensional tip-shape of succinonitrile dendrites suggests a possible mechanism responsible for certain features of microgravity dendritic solidification data which do not conform to the theory of Ivantsov. These data constitute part of the Isothermal Dendritic Growth Experiment (IDGE), and were obtained during three different missions of the space shuttle Columbia Under the conditions of reduced melt motion and convective heat transfer, the experimental data agree reasonably well with the basic transport theory, though discrepancies still exist. These have become the focus of further investigations. The method of moving heat sources is applied to the problem of dendritic growth of a pure material

Keywords