Influence of grain size-purity relationships on the ability to fabricate beryllium and the resulting mechanical properties.
Influence of grain-size purity relation beryllium fabrication and resulting mechanical properties
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Influence of grain-size purity relation beryllium fabrication and resulting mechanical properties
Spectral purity of Ebert type far IR grating spectrometer determined, noting experimental technique
Solvent purity meters for monitoring nonvolatile residue content of cleaning solvents
Electrochemical study of aluminum corrosion in boiling high-purity water includes an equation relating current and electrochemical potential derived on the basis of a physical model of the corrosion process. The work involved an examination of the cathodic polarization behavior of 1100 aluminum during aqueous oxidation.
Copper fluoride containing no more than 50 ppm of any contaminating element was prepared by the fluorination of copper hydroxyfluoride. The impurity content was obtained by spark source mass spectrometry. High purity copper fluoride is needed as a cathode material for high energy density batteries.
Laser frequency stability and spectral purity
Electronic attenuation of 10 to 130 MHz longitudinal ultrasonic waves in superconducting high purity Tl, noting energy gap anisotropy
Electronic attenuation of 10 to 130 MHz longitudinal ultrasonic waves in nonsuperconducting high purity Tl, noting anisotropy and measurements below 4.2 K
Producing high purity silicon carbide on carbon base by hydrogen reduction of silicon tetrachloride
Cavitation damage to high purity metals and nickel base superalloy in water
Device for producing high purity silicon carbide on carbon base by hydrogen reduction of silicon tetrachloride
Neutron irradiation effect on space charge limited current of electrons in high purity silicon, noting SCLC sensitivity in detecting traps and changes
Electrolyte purity effect on initiation times and growth rate of Zn dendrites in alkaline zincate solution, discussing dendrite initiation retardation
Commercial purity Ti athermal plastic deformation, showing anomalous behavior with temperature variations
Gold sliding electric contacts friction behavior, studying adsorbed gas lubrication in ultrahigh purity environments
The elastic and plastic deformation behavior of high-purity aluminum and of dilute aluminum alloys is reviewed. Reliable property data, including elastic moduli, elastic coefficients, tensile, creep, fatigue, hardness, and impact are presented. Single crystal tensile results are discussed. Rather comprehensive reference lists, containing publications of the past 20 years, are included for each of the above categories. Defect structures and mechanisms responsible for mechanical behavior are presented. Strengthening techniques (alloys, cold work, irradiation, quenching, composites) and recovery are briefly reviewed.
Some physical theories pertinent to the measurement properties of gallium arsenide are presented and experimental data are analyzed. A model for explaining recombination and trapping high purity gallium arsenide, valid below 77 K is assembled from points made at various places and an appraisal is given of photodielectric techniques for material property studies.
Internal friction peaks observed after small deformation in high purity tungsten single crystals between liquid helium temperature and 800 K in the frequency range 30-50 KHz, are studied as a function of orientation. An orientation effect is observed in the internal friction spectra due to the creation of internal stresses. The elementary processes related to these peaks are discussed in terms of kink generation and geometric kink motion on screw and edge dislocations in an internal stress field.