Results 271 to 280 of about 1,348,474 (292)

Hydrothermal Glass Reactions in Salt Brine

1979
A simulated high-level waste glass was exposed to high-temperature salt brine and deionized water. The glass undergoes partial crystallization, depending on the conditions, and yields NaFeSi2O6 as the primary alteration product. At the extreme temperature of these tests, cesium, rubidium, strontium and molybdenum show moderate-to-high solubilities in ...
J. H. Westsik, R. P. Turcotte
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Reactions of Glasses with Aqueous Solutions

Journal of the American Ceramic Society, 1967
The kinetics of the reactions of various glasses with water and aqueous solutions with pH from 1 to 13 was studied. Simple binary alkali oxide‐silica glasses were examined as well as some ternary glasses derived from the binary compositions by substituting alkaline‐earth oxides for silica. All components of the glass were determined in the extract; the
R. W. DOUGLAS, T. M. M. EL‐SHAMY
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Reaction dynamics across glass transition region

Journal of Molecular Liquids, 1995
Abstract Reaction dynamics across glass transition region is discussed in terms of the renewal theory (A. Plonka and A. Paszkiewicz, J. Chem. Phys. (1992) 96, 1128) with a fractal set of renewal moments which results from the use of Kohlrauschs' function (R. Kohlrausch (1854) Pogg. Ann. 91, 179; F. Kohlrausch (1863) Pogg. Ann.
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Fiber Glass Reinforced Reaction Injection Molding

1982
Reaction injection molding is a fast “in situ” polymerization process which forms the desired polymer from its monomeric liquids. The process is characterized by the use of high-speed impingement to mix reactive monomers or prepolymers which rapidly polymerize in a heated mold under low pressure.
M. M. Girgis, B. Das, J. A. Harvey
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Reactions of Borate Glasses in Aqueous Solutions

2022
Borate glasses are used for a variety of biomedical applications that depend on the controlled release of species from the glass to the surrounding physiological environment. As a consequence, a detailed understanding of their dissolution processes is required to design glasses for specific applications. Under neutral, dilute conditions, borate glasses
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Reaction gas chromatography in sealed glass capillaries

Journal of Chromatography A, 1979
Abstract The sealed glass capillary technique of reaction gas chromatography, previously described for hydrogenation, hydrogenolysis and ozonolysis, has been extended to include the dehydration of alcohols to olefins, the reduction of carbonyl groups to primary and secondary alcohols, and the oxidation of alcohols to aldehydes and ketones on the ...
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Nuclear Reaction Analysis of Corroded Glass Surfaces

1995
The nuclear reaction analysis (NRA) method based on the 15N + 1H → 12C + 4He + γ-ray nuclear reaction is used to profile the concentration of hydrogen as a function of depth in glass samples. This approach is useful in several fields of study including glass corrosion and dating of obsidians for archaeological purposes.
K. Cummings, W. A. Lanford
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Reactions of ammonia with porous glass surfaces

The Journal of Physical Chemistry, 1967
J M, Low, N, Ramasubramanian, V V, Rao
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Redox Reactions in Glasses

2023
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Reaction of pyrex glass with Na2CO3

Journal of Chemical Education, 1933
Edward Poling, G. R. Yohe
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