Results 201 to 210 of about 289,818 (249)
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1985
Minerals which are not silicates have been grouped together in this chapter for the description of their properties. However, unlike the silicates, the crystal structures and chemical variation of members of the group are not easily related to mineralogical properties and the mode of occurrence. Even subdivision of the group into transparent and opaque
C. D. Gribble, A. J. Hall
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Minerals which are not silicates have been grouped together in this chapter for the description of their properties. However, unlike the silicates, the crystal structures and chemical variation of members of the group are not easily related to mineralogical properties and the mode of occurrence. Even subdivision of the group into transparent and opaque
C. D. Gribble, A. J. Hall
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2011
A comprehensive profile of magnesium silicate with 80 references is reported. A full description including nomenclature, formulae, and appearance is included. Methods for magnesium silicate preparation including precipitation, hydrothermal precipitation, and mechanochemical dehydration are reviewed. Physical characteristics, compendia and non-compendia
Nidal H. Daraghmed +6 more
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A comprehensive profile of magnesium silicate with 80 references is reported. A full description including nomenclature, formulae, and appearance is included. Methods for magnesium silicate preparation including precipitation, hydrothermal precipitation, and mechanochemical dehydration are reviewed. Physical characteristics, compendia and non-compendia
Nidal H. Daraghmed +6 more
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Hafnium and zirconium silicates for advanced gate dielectrics
, 2000Hafnium and zirconium silicate (HfSixOy and ZrSixOy, respectively) gate dielectric films with metal contents ranging from ∼3 to 30 at. % Hf, or 2 to 27 at. % Zr (±1 at.
G. Wilk, R. Wallace, J. Anthony
semanticscholar +1 more source
Proteins in mesoporous silicates.
Angewandte Chemie, 2008Mesoporous silicates (MPS) have an ordered pore structure with dimensions comparable to many biological molecules. They have been extensively explored as supports for proteins and enzymes in biocatalytic applications. Since their initial discovery, novel
S. Hudson, J. Cooney, E. Magner
semanticscholar +1 more source
Physical Chemistry, Chemical Physics - PCCP, 2013
The lithium silicates have attracted scientific interest due to their potential use as high-temperature sorbents for CO2 capture. The electronic properties and thermodynamic stabilities of lithium silicates with different Li2O/SiO2 ratios (Li2O, Li8SiO6,
Y. Duan +6 more
semanticscholar +1 more source
The lithium silicates have attracted scientific interest due to their potential use as high-temperature sorbents for CO2 capture. The electronic properties and thermodynamic stabilities of lithium silicates with different Li2O/SiO2 ratios (Li2O, Li8SiO6,
Y. Duan +6 more
semanticscholar +1 more source
Aqueous Silicic Acid, Silicates and Silicate Complexes
1978The paper aims at giving a brief review of the aqueous chemistry of silicic acid, silicates and silicate complexes. In particular, problems concerning equilibria and structures are discussed. In addition geochemical data of silicon and silicon distribution on the earth crust will be briefly presented.
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Viscosity of liquid silica, silicates and alumino-silicates
Geochimica et Cosmochimica Acta, 1982Viscosity measurements are reported for amorphous silica and liquids belonging to the systems SiO2-M, SiO2-Al2O3-M, where M is an alkali-earth metal oxide, MnO, or alumina, and the systems SiO2-“FeO”, SiO2-FeO-Fe2O3-CaO, and SiO2-Al2O3-N, where N = Na2O or K2O.
Y. Bottinga, G. Urbain, Pascal Richet
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, 1997
The effect of silicate functionalization, anneal temperature, polymer molecular weight, and constituent interactions on polymer melt intercalation of a variety of styrene-derivative polymers in alkylammonium-functionalized silicates is examined.
R. Vaia, E. Giannelis
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The effect of silicate functionalization, anneal temperature, polymer molecular weight, and constituent interactions on polymer melt intercalation of a variety of styrene-derivative polymers in alkylammonium-functionalized silicates is examined.
R. Vaia, E. Giannelis
semanticscholar +1 more source
Derivatives of silicic acids as model compounds for silicates
Physics and Chemistry of Minerals, 1988Silicon-29 chemical shifts of methyl, ethyl, chloro and trimethylsilyl derivatives of silicic acids are compared to those of silicic acid anions found in aqueous solutions. Although the chemical shifts of the silicate anions vary with pH and concentration, a good correlation is obtained for the chloro and alkoxi derivatives.
Edith Bertling, Heinrich C. Marsmann
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Lattice model of polymer melt intercalation in organically-modified layered silicates
, 1997A mean-field, lattice-based model of polymer melt intercalation in organically-modified mica-type silicates (OLS) has been developed. In general, an interplay of entropic and energetic factors determines the outcome of polymer intercalation.
R. Vaia, E. Giannelis
semanticscholar +1 more source