Glass, Volume 1 |
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Page 98
Thermal fading is reasonably well described by a second - order rate equation ,
and an activation energy of 1 . 3 eV is found for the fading rate constant . D . J .
Kerko ( unpublished results ) reported darkening of TiCl in a sodium lead ...
Thermal fading is reasonably well described by a second - order rate equation ,
and an activation energy of 1 . 3 eV is found for the fading rate constant . D . J .
Kerko ( unpublished results ) reported darkening of TiCl in a sodium lead ...
Page 130
It may not be possible to observe this stress birefringence due to differential
contraction separately from the birefringence due to microstructure , which will be
described in the next section . However , our experiments indicate that the
fraction of ...
It may not be possible to observe this stress birefringence due to differential
contraction separately from the birefringence due to microstructure , which will be
described in the next section . However , our experiments indicate that the
fraction of ...
Page 258
The computer simulations employed a distribution of quadrupole coupling
constants as described in the text . ( After Kriz and Bray , 1971a . ) this model is
shown in Fig . 24 . The width of the distribution of bond angles used in Fig . 24 is
+ 2° .
The computer simulations employed a distribution of quadrupole coupling
constants as described in the text . ( After Kriz and Bray , 1971a . ) this model is
shown in Fig . 24 . The width of the distribution of bond angles used in Fig . 24 is
+ 2° .
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absorption alkali annealing applied assumed atoms band birefringence bleaching bond borate glasses Bray Brillouin calculations caused Ceram charge Chem coefficient color composition concentration conductivity considered constant containing coordination copper crystal crystalline curve darkening density dependence described detailed determined dielectric diffusion discussed distribution effect electron energy equation equilibrium et al experimental fading field fluctuations frequency function given gives heat treatment hole increased indicated intensity ions levels light liquid material measured mole negative observed obtained optical oxide oxygen particles phase photochromic Phys polarization positive present probably produce properties range ratio reduced relaxation reported respectively sample scattering separation shift shown in Fig silicate glasses silver halide similar SiO2 sodium Solids spectra spectrum strain stretching structural studied Taylor techniques temperature term thermal tion transition trapped units unpublished wavelengths York