Glass, Volume 1Minoru Tomozawa, R. H. Doremus |
From inside the book
Results 1-3 of 18
Page 93
... fading rate was negligible . The in- vestigators found that the logarithm of the induced absorption was linear with time , suggesting that darkening follows first - order kinetics . Analysis of the decay of the induced absorption band ...
... fading rate was negligible . The in- vestigators found that the logarithm of the induced absorption was linear with time , suggesting that darkening follows first - order kinetics . Analysis of the decay of the induced absorption band ...
Page 94
... fading rate constant showed a sub- stantial increase after the glass had been subjected to prolonged exposure . An 8 - mm thick sample of a europium - doped soda silica glass attained a maximum darkening of 6 dB after about 20 sec of ...
... fading rate constant showed a sub- stantial increase after the glass had been subjected to prolonged exposure . An 8 - mm thick sample of a europium - doped soda silica glass attained a maximum darkening of 6 dB after about 20 sec of ...
Page 98
... fading times for thermal bleaching at room temperature are in the tens of hours , but optical bleaching under a 250 - W tungsten light at a distance of 30 cm is essentially complete in less than five minutes . Thermal fading is ...
... fading times for thermal bleaching at room temperature are in the tens of hours , but optical bleaching under a 250 - W tungsten light at a distance of 30 cm is essentially complete in less than five minutes . Thermal fading is ...
Contents
Text | 8 |
Visible Absorption | 35 |
Methods of Measuring Surface Texture | 40 |
Copyright | |
49 other sections not shown
Common terms and phrases
absorption alkali amorphous anisotropic annealing Araujo atoms band binary birefringence bonding borate glasses boron borosilicate glass Bray Brillouin scattering calculations Ceram chalcogenide glasses Chem coefficient composition concentration fluctuations copper crystal crystalline curve darkening density fluctuations dielectric constant dielectric relaxation diffusion distribution effect electron energy equilibrium experimental fade rate Fe3+ fictive temperature frequency frozen-in strain function glass systems glasses containing Griscom heat treatment hole center hyperfine increase intensity interaction ions irradiated K₂O Krishnan Landau-Placzek ratio light scattering liquid magnetic measured microstructural birefringence mole Mössbauer Mössbauer spectroscopy Na₂O negative birefringence observed optical oxide glasses oxygen paramagnetic parameters particles phase separation phonons phosphate glasses photochromic photochromic glasses Phys polarization positive birefringence Rayleigh relaxation resonance sample Schroeder shift shown in Fig silicate glasses silver halide SiO2 sodium Solids spectra spectrum spin-lattice relaxation spinodal stretching structural studied T₁ Takamori Taylor thermal tion Tomozawa transition viscosity wavelengths