Accession Number : AD0702832

Title :   ARPA-NBS PROGRAM OF RESEARCH ON HIGH TEMPERATURE MATERIALS AND LASER MATERIALS.

Descriptive Note : Technical note 1 Jan-30 Jun 69,

Corporate Author : NATIONAL BUREAU OF STANDARDS WASHINGTON D C

Personal Author(s) : Franklin,A. D. ; Bennett,H. S.

Report Date : JAN 1970

Pagination or Media Count : 100

Abstract : Brief reviews are given of work performed on a number of projects concerned with High Temperature Materials and with Laser Materials. Under the High Temperature Materials heading, topics include diffusion of oxygen in oxides, growth of Al2O3 crystals by chemical vapor deposition, the electronic structure of transition metal borides and related compounds, the optical constants of titanium, high temperature creep in copper, fracture in glass, the mechanism of volatilization of polymers and long-chain compounds, and the interaction between mechanical relaxation and annealing in polymers. Work on Laser Materials includes measurement of bulk optical and elastic properties of laser materials, a study of the 'orange' degradation of ruby, measurements of sub-crystal misalignment in ruby, damage in glass induced by high-energy laser pulses, chemical analyses for ruby and Nd-doped laser glasses, and preliminary studies on detection of submicroscopic inhomogeneities in glass. (Author)

Descriptors :   (*HIGH TEMPERATURE, MATERIALS), (*LASERS, MATERIALS), OXIDES, CRYSTAL GROWTH, BORIDES, REFRACTORY MATERIALS, CERAMIC MATERIALS, RUBY, GLASS

Subject Categories : Lasers and Masers
      Ceramics, Refractories and Glass
      Miscellaneous Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE