Accession Number : AD0716421

Title :   Development of Methods for Preparing Zone Melting Feed Rods.

Descriptive Note : Final rept. 1 Oct 68-1 Aug 70,

Corporate Author : AMERICAN SCIENCE AND ENGINEERING INC CAMBRIDGE MASS

Personal Author(s) : Cobb,Carolus M. ; Wallis,Elbridge B.

Report Date : 30 OCT 1970

Pagination or Media Count : 57

Abstract : A study has been made of the process technology required for the production of zone melting feed rods of pure oxides. A method of preparing high density aluminum oxide feed rods without the use of binding agents has been developed. These rods meet the requirements of dimensional tolerances, strength, dopant concentration and purity which are essential for the zone melting based on focussed high intensity light sources. Results of the program indicate that the process is capable of producing ultra-high purity rods suitable for basic studies of laser degradation. (Author)

Descriptors :   (*ZONE MELTING, OXIDES), (*ALUMINA, PURIFICATION), DOPING, CHROMIUM COMPOUNDS, MANUFACTURING, LASERS, DEGRADATION, POWDER METALLURGY, RODS

Subject Categories : Ceramics, Refractories and Glass
      Mfg & Industrial Eng & Control of Product Sys
      Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE