Results 251 to 260 of about 1,253,196 (302)
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Luminescence of powdered uranium glasses*
Journal of the Optical Society of America, 1974Measurement of cathodoluminescence and photoluminescence efficiencies in powdered borosilicate glasses having different particle size and different uranium content. Excitation with 100 to 350 keV electrons and with 253.7 nm light was found to produce identical absolute radiant exitance spectra in powdered samples.
A. G. Eubanks +2 more
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Explosive compaction of metallic glass powders
Materials Science and Engineering, 1988Abstract Rapidly quenched materials, produced as powders, flakes or thin strips, can be consolidated by making use of the high pressures of detonating explosives. The underlying process is that of a shock front proceeding at a velocity greater than the sonic velocity of the material, which compacts the material instantaneously.
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Influence of Kaolin on the Sintering of Glass Powder to Glass–Ceramics
Journal of Inorganic and Organometallic Polymers and Materials, 2015Glass powder derived from a waste water flocculate was used to prepare sintered glass–ceramics. Different amounts of kaolin as a binder were mixed with the glass powder to form green bodies. The influence of the kaolin on the sintering, crystallization of the glass powder and on the microstructure of the obtained glass–ceramics has been investigated ...
Shiquan Liu, Na Li, Honghai Shen
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Fabrication of glass components by sintering of commercial glass powder
Ceramics International, 2015Abstract In this work, plasma display panel (PDP) glass bodies were prepared by pressureless sintering (PLS) and hot isostatic pressing (HIP). The effects of consolidation conditions including sintering temperature, sintering atmosphere, and HIP variables on final properties were investigated.
Lin, D +5 more
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Proton glass freezing in hydrated lysozyme powders
Physical Review E, 1999At room temperature, the dielectric relaxation of hydrated powder of the protein lysozyme is known to be due to protons migrating between ionized side chains. A recent study of this relaxation at lower temperatures suggested a behavior typical of proton glasses.
A, Levstik +5 more
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Sintering of Glass Powder Compacts
Transactions of the Indian Ceramic Society, 1981Sintering of two glasses (i) CaO 23.0%, Al2O3 15.0% and SiO2 62.0% and (ii) CaO 52.0%, Al2O3 41.5% and SiO2 6.5% with eutectic temperatures 1170° and 1335°C respectively has been carried out at 700°, 800°, 850° and 900°C. Effect of temperature and composition on the viscosity of glasses has been studied. Variations in viscosity with rise in temperature
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Archives of Surgery, 1997
In 1949-1950, as Fellow on the Tumor Service of the Department of Surgery at Yale University, New Haven, Conn, I was responsible for administration of nitrogen mustard to those patients for whom such therapy was indicated. To do so, I went to the surgical laboratory, as had Fellows before me, and measured on a balance the proper amount of nitrogen ...
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In 1949-1950, as Fellow on the Tumor Service of the Department of Surgery at Yale University, New Haven, Conn, I was responsible for administration of nitrogen mustard to those patients for whom such therapy was indicated. To do so, I went to the surgical laboratory, as had Fellows before me, and measured on a balance the proper amount of nitrogen ...
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1986
This chapter describes glass powder elution of DNA as an alternative to electroelution for purifying fragments from agarose gel pieces. The gel is dissolved in NaI, and the DNA is specifically bound to glass powder. The bound DNA is washed to remove impurities and is subsequently eluted from the glass in a low-salt buffer.
Leonard G. Davis +2 more
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This chapter describes glass powder elution of DNA as an alternative to electroelution for purifying fragments from agarose gel pieces. The gel is dissolved in NaI, and the DNA is specifically bound to glass powder. The bound DNA is washed to remove impurities and is subsequently eluted from the glass in a low-salt buffer.
Leonard G. Davis +2 more
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Gel synthesis and crystallization of potassium tetragermanate glass powders
Journal of Non-Crystalline Solids, 1999Abstract Potassium tetragermanate gel (K2O 4GeO2) was synthesized by hydrolytic polycondensation of germanium ethoxide with potassium ethoxide in alcoholic medium. The crystallization behavior of the gel, examined by differential thermal analysis and X-ray diffraction, is reported and discussed. Potassium tetragermanate gel crystallizes in two steps.
CATAURO, Michelina +2 more
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Metal to glass sealing using glass powder: Ion induced crystallization of glass
Materials Chemistry and Physics, 2019Abstract In this study, we investigated bonding mechanism of a metal foil with glass substrate. We used glass powder to enhance surface area and promote diffusion in the interface. The metal/glass powder/glass assembly was annealed at 600 °C for 1 h and adhesion process was monitored. Using transmission electron microscope, element mapping, Raman and
Hayk Khachatryan +5 more
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