Glass, Volume 1 |
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Results 1-3 of 54
Page 185
In order to be able to study only the part due to concentration fluctuations the
broad background , attributable to density fluctuations , was calculated with the
aid of Eq . ( 39 ) . High - temperature ultrasonic data ( Bockris et al . , 1955 ;
Bockris ...
In order to be able to study only the part due to concentration fluctuations the
broad background , attributable to density fluctuations , was calculated with the
aid of Eq . ( 39 ) . High - temperature ultrasonic data ( Bockris et al . , 1955 ;
Bockris ...
Page 198
First , it is necessary to consider the influence of this minor constituent on the
density fluctuations . It has been determined from hightemperature velocity
measurements ( Laberge , 1973 ) that for the binary alkali - silicates the
contribution to ...
First , it is necessary to consider the influence of this minor constituent on the
density fluctuations . It has been determined from hightemperature velocity
measurements ( Laberge , 1973 ) that for the binary alkali - silicates the
contribution to ...
Page 275
The fact that the Mössbauer effect probability f ' is smaller by a factor of three in
the amorphous phase indicates qualitatively that there is an increased density of
low - frequency vibrational modes in the amorphous phase , such as those ...
The fact that the Mössbauer effect probability f ' is smaller by a factor of three in
the amorphous phase indicates qualitatively that there is an increased density of
low - frequency vibrational modes in the amorphous phase , such as those ...
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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