Glass, Volume 17Minoru Tomozawa, Robert Heward Doremus |
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Page 37
... activation energy for diffusion , u = hv / 2kT ( v is the vibration frequency in a solubility site ) , and u * = hv kT ( v * is the vibrational frequency in the doorway between adjacent solubility sites ) . Masaryk and Fulrath ( 1973 ) ...
... activation energy for diffusion , u = hv / 2kT ( v is the vibration frequency in a solubility site ) , and u * = hv kT ( v * is the vibrational frequency in the doorway between adjacent solubility sites ) . Masaryk and Fulrath ( 1973 ) ...
Page 86
... energy effect at the normal heat- treatment temperature for phase separation , the nuclei can be assumed to be ... activation energy for a nucleus forma- tion given by AG * = 16πγ3 / ( Δρ . ) 2 ( 11 ) and AE is the activation energy of ...
... energy effect at the normal heat- treatment temperature for phase separation , the nuclei can be assumed to be ... activation energy for a nucleus forma- tion given by AG * = 16πγ3 / ( Δρ . ) 2 ( 11 ) and AE is the activation energy of ...
Page 337
... activation energy , and k Boltzmann's constant . If a discrete activation energy were to be involved and first - order kinetics were assumed , the activation energy could be accurately determined by performing iso- thermal anneals at ...
... activation energy , and k Boltzmann's constant . If a discrete activation energy were to be involved and first - order kinetics were assumed , the activation energy could be accurately determined by performing iso- thermal anneals at ...
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