Glass, Volume 1Minoru Tomozawa, Robert H. Doremus |
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Page 92
... compositions , small additions of zirconia ( ~ 100 ppm ) greatly enhance darkening , whereas in silicarich compositions some degree of inhibition of darkening by zirconia impurities is observed . Photochromic coloring is generally ...
... compositions , small additions of zirconia ( ~ 100 ppm ) greatly enhance darkening , whereas in silicarich compositions some degree of inhibition of darkening by zirconia impurities is observed . Photochromic coloring is generally ...
Page 131
Minoru Tomozawa, Robert H. Doremus. TABLE I COMPOSITION OF BOROSILICATE GLASSES APPEARING IN THE LITERATURE Glass compositions ( wt % ) SiO2 B203 Li2O Na2O K20 Al2O3 Pbo As203 References 66 73 83393 25 2 16.5 4.5 6 70 23 7 66.6 27.5 5.8 ...
Minoru Tomozawa, Robert H. Doremus. TABLE I COMPOSITION OF BOROSILICATE GLASSES APPEARING IN THE LITERATURE Glass compositions ( wt % ) SiO2 B203 Li2O Na2O K20 Al2O3 Pbo As203 References 66 73 83393 25 2 16.5 4.5 6 70 23 7 66.6 27.5 5.8 ...
Page 145
... composition , the crystallization of this glass could not be detected by x - ray diffraction until about 900 ° C , and ... compositions . The effect of TiO2 on the structural birefringence of various glasses was also studied by those ...
... composition , the crystallization of this glass could not be detected by x - ray diffraction until about 900 ° C , and ... compositions . The effect of TiO2 on the structural birefringence of various glasses was also studied by those ...
Contents
Text | 8 |
Ultraviolet Absorption | 10 |
Visible Absorption | 35 |
Copyright | |
49 other sections not shown
Common terms and phrases
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