Glass, Volume 17Minoru Tomozawa, Robert Heward Doremus |
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Page 3
... molecules in the gas phase , i.e. , the gas molecular density . The ratio C / C is equal to ( T / 273 ) S , where T is the absolute temperature and S is the solubility defined in terms of pressure . Doremus also has pointed out that ...
... molecules in the gas phase , i.e. , the gas molecular density . The ratio C / C is equal to ( T / 273 ) S , where T is the absolute temperature and S is the solubility defined in terms of pressure . Doremus also has pointed out that ...
Page 10
... molecules up to 3 Å in diameter ex- hibited somewhat similar values in vitreous silica of v ~ 0.03 , with a sharp decrease in solubility for larger molecules . If one assumes then that the interstices are ~ 3 Å in diameter , are ...
... molecules up to 3 Å in diameter ex- hibited somewhat similar values in vitreous silica of v ~ 0.03 , with a sharp decrease in solubility for larger molecules . If one assumes then that the interstices are ~ 3 Å in diameter , are ...
Page 32
... Molecular Diffusion Diffusion is frequently treated as a " random walk " of atoms or molecules ( Jost , 1952 ) . In this model , the diffusivity is given by D = 722г ( 36 ) where y is a geometric factor ( y = for unrestricted motion in ...
... Molecular Diffusion Diffusion is frequently treated as a " random walk " of atoms or molecules ( Jost , 1952 ) . In this model , the diffusivity is given by D = 722г ( 36 ) where y is a geometric factor ( y = for unrestricted motion in ...
Contents
Molecular Solubility and Diffusion | 3 |
Solubility Models | 9 |
Effect of Experimental Variables on Gas Mobility in Vitreous Materials | 16 |
Copyright | |
15 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 doublet effect ESR spectra eV band experimental free energy Friebele fused silica glass surface glass systems glasses containing grinding Griscom heat treatment helium hole center hole trapped hydrogen hydronium hyperfine immiscibility immiscibility boundary increase indentation irradiation lapping hardness layer measured mole Non-Cryst nonbridging oxygens nucleation observed optical absorption oxide glasses oxygen particle 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