ARPA-NBS program of research on high temperature materials: reporting period January 1 to June 30, 1969
U.S. Dept. of Commerce, National Bureau of Standards, 1970 - Heat resistant materials - 95 pages
Progress reports are given for projects on the growth of ultra-pure Al2O3 crystals, the development of a mass spectrometer-based sectioning technique for measuring oxygen diffusion in oxides and the development of a precision facility for measuring the threshold energy in a laser beam producing damage in a transparent substance. (Author).
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activation energy alumina alumina tube annealing apparent activation energy approximately beam borides boron Bureau of Standards cellular solidification characterization coloration compounds copper correlated creep tests crystal specimen curve damage studies damage threshold diffraction diffusion chamber electron enriched oxygen equation experimental films focused function high temperature creep High Temperature Materials impurities Inorganic Materials Division Institute for Materials interaction irradiation isotope joules kcal/mol laboratory laser materials laser rods Laue Materials Division Institute Materials Research Objective measurements mechanism mole fraction nanosecond National Bureau National Physical Laboratory Nd-glass neodymium-doped glasses observed obtained optical constants oxygen photoelastic Phys platinum chamber polycrystalline alumina population inversion properties Q-switched refractive index Report Period resonance ruby laser rutile sapphire single crystal solid solidification substructure spectra stress surface damage Technical techniques thermal tion TiOp tracer gas transition metal Transition Metal Borides values vapor grown width x-ray