Glass, Volume 1 |
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Page 67
ALKALI SILICATES The effects of the introduction of alkali on the ir and Raman
spectra of SiO2 have been investigated by numerous authors . More recent
studies include those by Simon and McMahon ( 1953b ) , Jellyman and Procter (
1955 ) ...
ALKALI SILICATES The effects of the introduction of alkali on the ir and Raman
spectra of SiO2 have been investigated by numerous authors . More recent
studies include those by Simon and McMahon ( 1953b ) , Jellyman and Procter (
1955 ) ...
Page 77
P2O5 Very little data is available on the vibrational spectra of P205 . Two of the
crystalline forms of P20 , which are known to exist include a rhombohedral form
composed of groupings of P . 010 molecules , and an orthorhombic form which ...
P2O5 Very little data is available on the vibrational spectra of P205 . Two of the
crystalline forms of P20 , which are known to exist include a rhombohedral form
composed of groupings of P . 010 molecules , and an orthorhombic form which ...
Page 241
As in the irradiated silicate glasses , the major features of the ESR spectra
observed in the alkali borate glasses can be accurately reproduced assuming a
simple superposition of the 1 : 2 and 1 : 3 or 1 : 4 type sites of Fig . 11 , but
detailed fits ...
As in the irradiated silicate glasses , the major features of the ESR spectra
observed in the alkali borate glasses can be accurately reproduced assuming a
simple superposition of the 1 : 2 and 1 : 3 or 1 : 4 type sites of Fig . 11 , but
detailed fits ...
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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