Results 251 to 260 of about 23,690 (305)

BERYLLIUM OXIDE: I*

Journal of the American Ceramic Society, 1939
A bstract This interesting and unusual material forms few mineralogical combinations, although many binary and some ternary diagrams have been plotted. The apparent stable crystalline formation at relatively low temperature has been confirmed by specific‐gravity ...
H. E. White, R. M. Shremp
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Sintering beryllium oxide

Refractories, 1961
A study of the variation with temperature of BeO propertie s (shrinkage, water-holding capacity, volume weight, poro sity, dynamics of weight losses, refractive index, crystal size, specific weight, and chemical resistance) was made to determine the optimum conditions for the manufacture of dense ceramic objects from the compound. The following factors
P. P. Budnikov, A. A. Zvyagil'skiy
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Beryllium Oxide (BeO)

1997
Publisher Summary The optical properties of crystalline synthetic beryllium oxide, BeO, are reported for a very limited number of samples. The main reasons for this lack of data are the toxic properties of the material and the difficulty of growing large optical-quality crystals.
D EDWARDS, R WHITE
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Self‐Diffusion of Beryllium in Polycrystalline Beryllium Oxide

Journal of the American Ceramic Society, 1967
The self‐diffusion of beryllium in polycrystalline beryllium oxide was measured from 1330° to 2135°C with the 7 Be tracer. Results are compared with the findings of other investigators, and it is concluded that the differences reported are due to variations in impurity and porosity contents ...
RALPH H. CONDIT, YURIKO HASHIMOTO
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Self-diffusion of beryllium in unirradiated beryllium oxide

Journal of Nuclear Materials, 1964
Abstract Diffusion of beryllium-7 through polycrystalline unirradiated specimens of BeO was studied as a preliminary step to a study of diffusion in irradiated material. Beryllium-7 was deposited on one end of cylindrical specimens by exchange and adsorption from aqueous solution.
H.J. De Bruin, G.M. Watson
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Ion-induced beryllium oxidation

Protection of Metals, 2007
Ion-induced beryllium oxidation under the irradiation with deuterium ions with an energy of 3 keV at 300 and 700 K is studied by secondary ion mass spectrometry, electrone probe microanalysis, and reflected high-energy electron diffraction. It is shown that the irradiation in vacuum, with subsequent exposure to air (5 days, 300 K) or oxygen (30 min, 1 ×
R. Kh. Zalavutdinov, V. Kh. Alimov, A. E. Gorodetsky, A. P. Zakharov   +3 more
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BERYLLIUM OXIDE REFRACTORIES, II*

Journal of the American Ceramic Society, 1940
A bstract A description is given of the method used to extract beryllia, and some of the properties of the oxide are reviewed, including electrical and thermal conductivity.
H. E. White, R. M. Shrbmp, C. B. Sawyer
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Beryllium Oxide As a Thermoluminescent Dosimeter

Health Physics, 1969
Abstract : The following dosimetric properties were observed in sintered BeO disks and powder: high thermal sensitivity and wide dynamic range, little energy dependence at low x-ray energies, low fast and thermal neutron thermoluminescence response and good stability at room temperature.
E, Tochilin, N, Goldstein, W G, Miller
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Deuterium Retention In Beryllium and Beryllium Oxide

2000
Retention of deuterium in Be sample and BeO film implanted with D ions or exposed to D atoms at temperatures in the range 300 to 700 K have been studied using SIMS and RGA (residual gas analysis) measurements in the course of surface sputtering. The microstructure of implanted specimens was investigated by TEM.
V. Kh. Alimov, A. P. Zakharov
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Neutron slowing-down spectra in beryllium and beryllium oxide

Journal of Nuclear Energy. Parts A/B. Reactor Science and Technology, 1964
Abstract The collision density of neutrons slowing down in an infinite homogeneous moderator has been obtained as a function of neutron energy for beryllium and beryllium oxide. The source fission neutrons were uniformly distributed in space. The spectra were obtained by solving the slowing-down integral equation numerically using a digital computer.
T.H. AxfordP, K.C. Hines, J.P. Pollard
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