Glass, Volume 1 |
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Page 96
Suspension of Crystallites in Glasses Many inorganic materials are soluble in
molten glasses but precipitate out when the glasses are cooled or held at some
intermediate temperature for a long time . In some cases the precipitate is in a
fine ...
Suspension of Crystallites in Glasses Many inorganic materials are soluble in
molten glasses but precipitate out when the glasses are cooled or held at some
intermediate temperature for a long time . In some cases the precipitate is in a
fine ...
Page 97
Materials containing chlorides and iodides tended to be blue , whereas materials
containing bromides tended to be red ... One of the better materials transmitted
only about 30 % of the visible light in the undarkened state when it was ground ...
Materials containing chlorides and iodides tended to be blue , whereas materials
containing bromides tended to be red ... One of the better materials transmitted
only about 30 % of the visible light in the undarkened state when it was ground ...
Page 125
The refractive index of a material is a nondimensional number and is equal to the
ratio of the velocity of light in vacuum to that in the material . Thus , to light
propagating in the direction perpendicular to the c axis , the optically uniaxial
material ...
The refractive index of a material is a nondimensional number and is equal to the
ratio of the velocity of light in vacuum to that in the material . Thus , to light
propagating in the direction perpendicular to the c axis , the optically uniaxial
material ...
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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