Glass, Volume 17Minoru Tomozawa, Robert Heward Doremus |
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Page 5
... helium solubility is essen- tially equal to neon solubility in vitreous germania ( Woods and Doremus , 1971 ) . An even more radical difference has been observed for vitreous boric oxide , where the neon solubility is approximately ...
... helium solubility is essen- tially equal to neon solubility in vitreous germania ( Woods and Doremus , 1971 ) . An even more radical difference has been observed for vitreous boric oxide , where the neon solubility is approximately ...
Page 23
... helium permeation and on the activation energy for permeation for all three systems are shown in Fig . 6 . The effect of glass composition on helium mobility in alkali borate glasses ( Shelby , 1973c ) is much more complicated than in ...
... helium permeation and on the activation energy for permeation for all three systems are shown in Fig . 6 . The effect of glass composition on helium mobility in alkali borate glasses ( Shelby , 1973c ) is much more complicated than in ...
Page 24
... helium probably diffuses through this free volume , to the effect of these alkali oxide additions on helium diffusion . Helium mobility has also been measured for a wide variety of ternary glass - forming systems . It has been ...
... helium probably diffuses through this free volume , to the effect of these alkali oxide additions on helium diffusion . Helium mobility has also been measured for a wide variety of ternary glass - forming systems . It has been ...
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