Glass, Volume 1Minoru Tomozawa, R. H. Doremus |
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Page 11
... bond distance is roughly 1.6 Å in both materials . The Si - O - Si bond angle in crystal a - quartz is 144 ° . Bell and Dean ( 1966 ) found that a distribution of bond angles with a mean value of 150 ° was obtained when a fused silica ...
... bond distance is roughly 1.6 Å in both materials . The Si - O - Si bond angle in crystal a - quartz is 144 ° . Bell and Dean ( 1966 ) found that a distribution of bond angles with a mean value of 150 ° was obtained when a fused silica ...
Page 32
... bond configuration corresponding to the short bond length . This bond is stronger than the other P - O bonds so that it is not expected to produce a shift of the uv edge to longer wavelengths . The only experimental data found in the ...
... bond configuration corresponding to the short bond length . This bond is stronger than the other P - O bonds so that it is not expected to produce a shift of the uv edge to longer wavelengths . The only experimental data found in the ...
Page 236
... bond angle between the unpaired spin and one of the Si - O bonds . Although the values of the atomic s and p contributions to the hyperfine coupling constant are not known precisely enough to calculate the average bond angle accurately ...
... bond angle between the unpaired spin and one of the Si - O bonds . Although the values of the atomic s and p contributions to the hyperfine coupling constant are not known precisely enough to calculate the average bond angle accurately ...
Contents
Text | 8 |
Ultraviolet Absorption | 10 |
Methods of Measuring Surface Texture | 30 |
Copyright | |
49 other sections not shown
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absorption band alkali anisotropic annealing Araujo atoms binary birefringence bleaching bond borate glasses boron borosilicate glass Bray Brillouin Brillouin scattering calculations Ceram chalcogenide glasses Chem coefficient colloid color composition concentration fluctuations coordination copper crystal crystalline darkening density fluctuations dielectric constant dielectric relaxation diffusion distribution effect electron energy equilibrium experimental fade rate Fe3+ frequency frozen-in strain function GeO2 glasses containing Griscom heat treatment increase indicated intensity irradiated Landau-Placzek ratio light scattering measured microstructural birefringence mole Mössbauer Na₂O negative birefringence observed octahedral octahedral symmetry optical oxide glasses oxygen paramagnetic particles phase separation phonons phosphate glasses photochromic photochromic glasses Phys polarization positive birefringence Raman 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 Takamori Taylor temperature thermal tion Tomozawa transition trapped ultraviolet unpublished results vibrational viscosity wavelengths