Comments on theoretical analyses of isenthalpic solidification

摘要: Abstract A comparative study is presented on the major strengths and shortcomings of two approximate theoretical analyses dendritic growth. The theories — 1) Temkin's analysis 2) modified Ivantsov both assume non-isothermal paraboloidal dendrites growing at steady state with a maximized velocity, but then differ markedly in their subsequent treatment boundary conditions that are satisfied solid/liquid interface. application by Tarshis Kotler to our growth-rate measurements supercooled phosphorus discussed some detail. Particular emphasis given explaining failure theory yield rational kinetic experimental results. success predicting growth behavior shown depend, part, thermal interaction among neighboring during isenthalpic solidification large supercooling.