Glass, Volume 17Minoru Tomozawa, Robert Heward Doremus |
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Page 10
... vitreous silica of v decrease in solubility for larger molecules . If one assumes then that the interstices are ~ 3 Å in diameter , are spherical , and have a total volume of 0.03 cm3 / cm3 of glass , there are approximately 2.1 x 1021 ...
... vitreous silica of v decrease in solubility for larger molecules . If one assumes then that the interstices are ~ 3 Å in diameter , are spherical , and have a total volume of 0.03 cm3 / cm3 of glass , there are approximately 2.1 x 1021 ...
Page 30
... silica occurs at special sites , denoted precursors , and that the reaction rate at these sites is extremely fast ... vitreous silica in which all hydroxyls were attached to silicons . In impure vitreous silica , however , Lee ( 1963 ) ...
... silica occurs at special sites , denoted precursors , and that the reaction rate at these sites is extremely fast ... vitreous silica in which all hydroxyls were attached to silicons . In impure vitreous silica , however , Lee ( 1963 ) ...
Page 31
... vitreous silica is free of interfering peaks at the required wavelength . Isotope exchange has also been found to occur readily under the influence of gamma irradiation . Shelby et al . ( 1975 ) found that most of the hydroxyl in vitreous ...
... vitreous silica is free of interfering peaks at the required wavelength . Isotope exchange has also been found to occur readily under the influence of gamma irradiation . Shelby et al . ( 1975 ) found that most of the hydroxyl in vitreous ...
Contents
Solubility Models | 9 |
Effect of Experimental Variables on Gas Mobility in Vitreous Materials | 16 |
Phase Separation and Crystallization | 26 |
Copyright | |
18 other sections not shown
Common terms and phrases
activation energy addition alkali alkali ions alkali silicate glasses annealing atom band bleaching BOHC borate boron borosilicate glass cation Ceram Chem chemical durability components concentration crystallization curve decrease defect centers devitrifiable solder glasses Doremus effect ESR spectra eV band experimental Friebele fused silica glass surface glass systems glasses containing grinding Griscom heat treatment helium hole center hole trapped hydrogen hyperfine immiscibility immiscibility boundary increase indentation irradiation lapping hardness layer measured mole Na₂O Non-Cryst nonbridging oxygen nucleation observed optical absorption oxide glasses oxygen particle PbTiO3 permeability phase separation Phys polishing grains polishing rate powder properties radiation radiation-induced reaction samples Section Shelby shown in Fig silicate glasses SiO2 sodium softening point solder glass composites solubility spectrum spinodal decomposition structure studies Table Takamori thermal expansion coefficient tion Tomozawa U.S. Patent viscosity vitreous silica vitreous solder glass volume loss