Accession Number : AD0883459

Title :   Core Free Czochralski Ruby.

Descriptive Note : Final rept. 1 Jun 69-30 Jun 70,

Corporate Author : KRYSTALLOS INC PALO ALTO CA

Personal Author(s) : Feisel, Duane H. ; Fullmer, Lester D.

Report Date : MAR 1971

Pagination or Media Count : 34

Abstract : A modified, resistance heated, all-metal furnace has been successfully used to grow 'core free' rubies by the Czochralski technique. These crystals are suitable for laser applications. Rods up to 3 inches long and up to 1/2 inch diameter have been fabricated. The effective distribution coefficient for chromium oxide in this system is determined to be 0.75 plus or minus 0.05. Further testing and evaluation of material has been initiated. (Author)

Descriptors :   (*CRYSTAL GROWTH, RUBY), (*LASERS, OPTICAL MATERIALS), OPTICAL PROPERTIES, MANUFACTURING, NONDESTRUCTIVE TESTING, INTERFEROMETERS, QUALITY CONTROL, SINGLE CRYSTALS.

Subject Categories : Lasers and Masers
      Mfg & Industrial Eng & Control of Product Sys
      Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE