Glass, Volume 1 |
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Page 17
The edge increased to longer wavelengths by the addition of MgO , CaO , Sro ,
and BaO as shown in Fig . 6 . B2O3 addition was observed to shift the edge to
shorter wavelengths , apparently because of the reduction of the NBO
concentration ...
The edge increased to longer wavelengths by the addition of MgO , CaO , Sro ,
and BaO as shown in Fig . 6 . B2O3 addition was observed to shift the edge to
shorter wavelengths , apparently because of the reduction of the NBO
concentration ...
Page 74
Alkaline earth oxide addition to B , 03 produces similar changes in the vibrational
spectra of borates . One interesting system is the alkali - alumino - borates which
have been measured using ir and Raman techniques by Konijnendijk ( 1975 ) .
Alkaline earth oxide addition to B , 03 produces similar changes in the vibrational
spectra of borates . One interesting system is the alkali - alumino - borates which
have been measured using ir and Raman techniques by Konijnendijk ( 1975 ) .
Page 75
ALKALI GERMANATE GLASSES The addition of alkali oxide to GeO2 produces
an immediate structural reorientation in the glass , the coordination of the Ge
going from 4 to 6 . This is accomplished by the incorporation of two high - energy
Ge ...
ALKALI GERMANATE GLASSES The addition of alkali oxide to GeO2 produces
an immediate structural reorientation in the glass , the coordination of the Ge
going from 4 to 6 . This is accomplished by the incorporation of two high - energy
Ge ...
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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