Accession Number : AD0488431

Title :   EFFECT OF CONCENTRATION VARIATIONS ON THE DISTRIBUTION COEFFICIENT.

Descriptive Note : Rept. for Sep 65-May 66,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS

Personal Author(s) : Wilcox, W. R. ; Chase, A. B.

Report Date : JUL 1966

Pagination or Media Count : 7

Abstract : The concentration of impurity varies in crystals grown by many techniques. This variation in composition introduces strain into the crystal, because of the dependence of lattice constants on composition. This strain energy causes the impurity distribution coefficient between crystal and fluid to depart from the equilibrium value. Theoretical expressions for the distribution coefficient for several situations of this type are derived in this paper. It is suggested that such an effect may provide explanations for several crystal growth phenomena. (Author)

Descriptors :   (*CRYSTAL GROWTH, MATHEMATICAL MODELS), (*IMPURITIES, CONCENTRATION(CHEMISTRY)), DOPING, CRYSTAL LATTICES, STRESSES, SOLUTIONS(MIXTURES), DISTRIBUTION, EPITAXIAL GROWTH.

Subject Categories : Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE