Accession Number : AD0649845

Title :   THE LINEAR SOLIDIFICATION OF BINARY SOLUTIONS.

Descriptive Note : Technical rept.,

Corporate Author : ARMY MATERIALS RESEARCH AGENCY WATERTOWN MASS

Personal Author(s) : DeLuca,Eugene

Report Date : NOV 1966

Pagination or Media Count : 31

Abstract : The linear solidification of a dilute, binary solution is studied in this work. The results of Neumann and Schwarz on linear solidification of a pure substance are extended to solidification of binary solution. The redistribution of solute which occurs during solidification is given appropriate consideration in the treatment. The existence and extent of a region in the liquid phase wherein solidification is thermodynamically possible (supercooled boundary layer) are examined rigorously in some detail. Solidification of a binary solution from a circular cylindrical boundary and from a spherical boundary is also considered. In each case, the problem is reformulated as a set of integral and integrodifferential equations, and an elementary numerical procedure is outlined for treatment of the transformed problem. (Author)

Descriptors :   (*FREEZING, SOLUTIONS(MIXTURES)), (*BOUNDARY VALUE PROBLEMS, FREEZING), LINEAR SYSTEMS, SUPERCOOLING, PARTIAL DIFFERENTIAL EQUATIONS, INTEGRAL EQUATIONS

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE