Glass, Volume 1Minoru Tomozawa, Robert H. Doremus |
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Page 42
... acid glasses similar to [ HCrO4 ] and as a chromate group [ CrO4 ] 2 in a basic glass , with the former being responsible for the 0.36 - μm band and the latter the 0.26 - μm band , quite similar to the silicate glasses . Duffy ( 1972 ) ...
... acid glasses similar to [ HCrO4 ] and as a chromate group [ CrO4 ] 2 in a basic glass , with the former being responsible for the 0.36 - μm band and the latter the 0.26 - μm band , quite similar to the silicate glasses . Duffy ( 1972 ) ...
Page 50
... acid melts where the bonds are mainly ionic , while more covalency existed in tetrahedral complexes formed in basic glasses . In phosphate glasses of composition Na2O - P2O5 Duffy ( 1972 ) reports bands at 0.54 ( ε = 12 ) and 1.43 μm ...
... acid melts where the bonds are mainly ionic , while more covalency existed in tetrahedral complexes formed in basic glasses . In phosphate glasses of composition Na2O - P2O5 Duffy ( 1972 ) reports bands at 0.54 ( ε = 12 ) and 1.43 μm ...
Page 96
... acid , and alumina in the correct proportions to produce a mass of material having a stoichiometry corresponding to the chemical formula Na2O · Al2O3 · 2SiO2 . To this base material various amounts of boric acid , alkali halides ...
... acid , and alumina in the correct proportions to produce a mass of material having a stoichiometry corresponding to the chemical formula Na2O · Al2O3 · 2SiO2 . To this base material various amounts of boric acid , alkali halides ...
Contents
Text | 8 |
Ultraviolet Absorption | 10 |
Visible Absorption | 35 |
Copyright | |
49 other sections not shown
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absorption alkali anisotropic annealing applications assumed atoms band birefringence bleaching bond Bray Brillouin calculations caused Ceram charge Chem coefficient color composition concentration considered constant containing coordination copper crystal crystalline curve darkening density dependence described detailed determined dielectric diffusion discussed distribution effect electron energy equilibrium et al experimental fading field Figure fluctuations frequency function given gives heat heat treatment hole increase indicated intensity ions levels light liquid material measured microstructural mole negative birefringence observed obtained optical oxide oxygen particles phase photochromic Phys polarization positive present produce range ratio reduced relaxation reported respectively sample scattering separation shift shown in Fig shows silicate glasses silver halide similar SiO2 sodium Solids spectra spectrum strain stress stretching structural studied Taylor techniques temperature term thermal tion transition trapped viscosity wavelengths York