Glass, Volume 1Minoru Tomozawa, Robert H. Doremus |
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Page 31
... phosphate glasses is P2O5 . The basic structural unit is the PO4 tetrahedron . Virtually all phosphates , both amor- phous and crystalline are composed of chains , rings , OPTICAL ABSORPTION OF GLASSES 31 Phosphate Glasses.
... phosphate glasses is P2O5 . The basic structural unit is the PO4 tetrahedron . Virtually all phosphates , both amor- phous and crystalline are composed of chains , rings , OPTICAL ABSORPTION OF GLASSES 31 Phosphate Glasses.
Page 33
... phosphate glasses . The introduction of alkali or alkaline earths should therefore produce a breakup of the basic P - O - P glass forming network much in the same manner as observed in silicate glasses . This weakening of the network by ...
... phosphate glasses . The introduction of alkali or alkaline earths should therefore produce a breakup of the basic P - O - P glass forming network much in the same manner as observed in silicate glasses . This weakening of the network by ...
Page 77
Minoru Tomozawa, Robert H. Doremus. D. Phosphate Glasses 1. P2O5 Very little data is available on the vibrational spectra of P2O5 . Two of the crystalline forms of P2O , which are known ... OPTICAL ABSORPTION OF GLASSES 77 Phosphate Glasses.
Minoru Tomozawa, Robert H. Doremus. D. Phosphate Glasses 1. P2O5 Very little data is available on the vibrational spectra of P2O5 . Two of the crystalline forms of P2O , which are known ... OPTICAL ABSORPTION OF GLASSES 77 Phosphate Glasses.
Contents
Text | 8 |
Ultraviolet Absorption | 10 |
Visible Absorption | 35 |
Copyright | |
49 other sections not shown
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absorption alkali anisotropic annealing applications assumed atoms band birefringence bleaching bond Bray Brillouin calculations caused Ceram charge Chem coefficient color composition concentration considered constant containing coordination copper crystal crystalline curve darkening density dependence described detailed determined dielectric diffusion discussed distribution effect electron energy equilibrium et al experimental fading field Figure fluctuations frequency function given gives heat heat treatment hole increase indicated intensity ions levels light liquid material measured microstructural mole negative birefringence observed obtained optical oxide oxygen particles phase photochromic Phys polarization positive present produce range ratio reduced relaxation reported respectively sample scattering separation shift shown in Fig shows silicate glasses silver halide similar SiO2 sodium Solids spectra spectrum strain stress stretching structural studied Taylor techniques temperature term thermal tion transition trapped viscosity wavelengths York