Glass, Volume 1 |
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Page 286
... oxygen ion Vibrational frequency of alkali - free nonbridging oxygen ion
Vibrational frequency of nonbridging oxygen ion with dou - bly occupied sites
Vibrational frequency of normal bridging oxygen Vibrational frequency of
bridging oxygen ...
... oxygen ion Vibrational frequency of alkali - free nonbridging oxygen ion
Vibrational frequency of nonbridging oxygen ion with dou - bly occupied sites
Vibrational frequency of normal bridging oxygen Vibrational frequency of
bridging oxygen ...
Page 312
Charles postulated that there are a number of equivalent positions of stability for
an alkali ion around each nonbridging oxygen atom . If , for example , a model of
the type shown in Fig . 15 is considered , an alkali ion can migrate from a site ...
Charles postulated that there are a number of equivalent positions of stability for
an alkali ion around each nonbridging oxygen atom . If , for example , a model of
the type shown in Fig . 15 is considered , an alkali ion can migrate from a site ...
Page 314
and nonbridging oxygen ions with doubly occupied sites , respectively , Vob and
Vos are the vibrational frequencies of normal bridging oxygen and bridging
oxygen around alkali ions . W is the energy required to form a defect . In the
group of ...
and nonbridging oxygen ions with doubly occupied sites , respectively , Vob and
Vos are the vibrational frequencies of normal bridging oxygen and bridging
oxygen around alkali ions . W is the energy required to form a defect . In the
group of ...
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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