Accession Number : AD0813027

Title :   CZOCHRALSKI GROWTH OF CUCL.

Descriptive Note : Rept. for Sep 64-Oct 66,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA LABS DIV

Personal Author(s) : Wilcox, William R. ; Corley, Robert A.

Report Date : APR 1967

Pagination or Media Count : 15

Abstract : Commercial CuCl was found to be unsatisfactory for crystal growth. Purification was achieved both by chemical and by zone-melting techniques. CuCl ingots pulled from pure melts were found to be strained, highly twinned, and polycrystalline because of the wurtzite-to-zincblende phase transition. This phase transition was avoided by addition of from 5 to 15% KCl to the melt. Difficulty was encountered with evaporation of the CuCl and with strings of small inclusions in the flux-grown crystals. Mechanical processes produced no twins at room temperature but did result in residual strain. (Author)

Descriptors :   (*COPPER COMPOUNDS, CRYSTAL GROWTH), (*ZONE MELTING, RECRYSTALLIZATION), INTERFACES, DISKS, LITHIUM COMPOUNDS, BISMUTH COMPOUNDS, QUARTZ, ADHESION, OPTICAL PROPERTIES, VACUUM APPARATUS, CHLORIDES, SINGLE CRYSTALS, TWINNING(CRYSTALLOGRAPHY), SURFACE PROPERTIES, REACTION KINETICS, IMPURITIES, CRYSTAL DEFECTS, DEFECTS(MATERIALS), MELTING POINT, SUBLIMATION, PURIFICATION.

Subject Categories : Physical Chemistry
      Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE