Glass, Volume 17Minoru Tomozawa, Robert Heward Doremus |
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Page 97
... Viscosity Some glasses show a drastic increase of viscosity when they are heat treated for phase separation ( Mazurin et al . , 1969 , 1970a , b ; Li and Uhlmann , 1970 ; Bernheim and Chaklader , 1971 ; Simmons et al . , 1974 ; Mahoney ...
... Viscosity Some glasses show a drastic increase of viscosity when they are heat treated for phase separation ( Mazurin et al . , 1969 , 1970a , b ; Li and Uhlmann , 1970 ; Bernheim and Chaklader , 1971 ; Simmons et al . , 1974 ; Mahoney ...
Page 98
... Viscosity change with heat treatment time for Corning 7740 glass . ( After Simmons et . al . , 1974. ) of glass systems . For example , if this is the operating mechanism , the viscosity increase should be observed in B2O3 - PbO system ...
... Viscosity change with heat treatment time for Corning 7740 glass . ( After Simmons et . al . , 1974. ) of glass systems . For example , if this is the operating mechanism , the viscosity increase should be observed in B2O3 - PbO system ...
Page 212
... VISCOSITY After crystallization the solder glass no longer flows at the sealing tem- perature . This increase in refractoriness has been advantageously used for the manufacture of color TV tubes : the panel and the funnel can be sealed ...
... VISCOSITY After crystallization the solder glass no longer flows at the sealing tem- perature . This increase in refractoriness has been advantageously used for the manufacture of color TV tubes : the panel and the funnel can be sealed ...
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