Glass, Volume 1 |
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Page 42
Similar bands in aqueous solutions involving ( CrO4 ) 2 – ions suggest that the
Cr6 + ion in the glass possesses tetrahedral symmetry . Stroud ( 1971 )
compared chromium coloration in oxidized and reduced lead silicate glasses
with that ...
Similar bands in aqueous solutions involving ( CrO4 ) 2 – ions suggest that the
Cr6 + ion in the glass possesses tetrahedral symmetry . Stroud ( 1971 )
compared chromium coloration in oxidized and reduced lead silicate glasses
with that ...
Page 48
Karlsson ( 1969 ) reported a similar charge transfer band in a doped 3Na2O -
7SiO2 glass at 0 . 412 um ( 24 , 300 cm – 1 ) with an ε = 3900 . The absorption
was also attributed to ferric iron in tetrahedral coordination with oxygen and sulfur
.
Karlsson ( 1969 ) reported a similar charge transfer band in a doped 3Na2O -
7SiO2 glass at 0 . 412 um ( 24 , 300 cm – 1 ) with an ε = 3900 . The absorption
was also attributed to ferric iron in tetrahedral coordination with oxygen and sulfur
.
Page 247
Thus for equivalent bonding configurations one would expect the deviations of
the principal components of the g tensor from the free electron g value to scale
with à for oxygen and selenium if the two types of center are similar .
Photoemission ...
Thus for equivalent bonding configurations one would expect the deviations of
the principal components of the g tensor from the free electron g value to scale
with à for oxygen and selenium if the two types of center are similar .
Photoemission ...
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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