Accession Number : AD0632545

Title :   PREPARATION OF PLATINUM-FREE LASER GLASS.

Descriptive Note : Semi-annual technical rept. no. 3, 1 Jul-31 Dec 65,

Corporate Author : AMERICAN OPTICAL CO SOUTHBRIDGE MASS RESEARCH DIV

Personal Author(s) : Woodcock,Richard F. ; Granitsas,George A. ; Silverberg,Carl G.

Report Date : MAY 1966

Pagination or Media Count : 18

Abstract : The goal of the investigation is the elimination of platinum particles in laser glass. For glasses melted in platinum crucibles, earlier work indicates that platinum -free glasses may be obtained if the glass is melted in an inert atmosphere. Various methods of homogenizing the glass in an atmosphere furnace, other than stirring, were investigated; including bubbling inert gas through the melt, convection currents and diffusion. A parallel approach to this problem, also being investigated, is the melting of high purity laser glass in an all-ceramic system. Such a system was constructed and tested. Problem areas were identified and design modifications were made where necessary. Optimization of the operational procedure of the furnace is now in progress. (Author)

Descriptors :   (*LASERS, *GLASS), (*PLATINUM, LASERS), PURIFICATION, MELTING, CONTAMINATION, CONTAINERS, CERAMIC MATERIALS, EXTRUSION, NEODYMIUM

Subject Categories : Lasers and Masers
      Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE