Glass, Volume 1

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