Treatise on Materials Science and TechnologyHerbert Herman, Minoru Tomozawa, Robert H. Doremus |
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Page 39
... activation energies of desorption for the system N - rasotherm glass . With increasing temperature of adsorption and surface cover- age the time of stay decreases . The high - energy adsorption centers at low degree of coverage are ...
... activation energies of desorption for the system N - rasotherm glass . With increasing temperature of adsorption and surface cover- age the time of stay decreases . The high - energy adsorption centers at low degree of coverage are ...
Page 223
... energy of activation and ko is weakly depen- dent on temperature or pressure . If the pressure P is a variable as well as the temperature , Eq . ( 56 ) can be written k = k1 exp [ ( − △ H * + V * P ) / RT ] ( 57 ) where V * denotes ...
... energy of activation and ko is weakly depen- dent on temperature or pressure . If the pressure P is a variable as well as the temperature , Eq . ( 56 ) can be written k = k1 exp [ ( − △ H * + V * P ) / RT ] ( 57 ) where V * denotes ...
Page 224
... activation energy of fatigue of about 10.8 kcal / mole . This contribu- tion alone shows that the similarity of the activation energy of 18.8 kcal / mole found by Charles to the activation energy for diffusion of sodium in the glass is ...
... activation energy of fatigue of about 10.8 kcal / mole . This contribu- tion alone shows that the similarity of the activation energy of 18.8 kcal / mole found by Charles to the activation energy for diffusion of sodium in the glass is ...
Contents
Water in Glass | 75 |
Applications | 121 |
Gel Method for Making Glass | 129 |
Copyright | |
15 other sections not shown
Common terms and phrases
acid activation energy adsorption alkali alkoxide alkoxide method alkoxide solution annealing point atoms autoclave Bartholomew bead seal BK7 glass bond borosilicate borosilicate glass bulk glass calculated Ceram Chem chemical components crack propagation crack tip crystals curve density dependence desorption diameter distribution Dunken effect elastic energy equation etching experimental failure film flaws fused silica geometry glass fibers glass surface H₂O heating Hillig hydrated hydrolysis hydrosilicate increase ions layer liquid load material measured melting metal alkoxides mole Na2O Non-Cryst OH groups Pavelchek and Doremus Phys powders Pyrex ratio reaction refractive index Rekhson samples sandwich seal Section set point shown in Fig shows silicate glasses SiO2 SiO2 glass soda-lime glass Solids spectra static fatigue strain stress release structure Table technique temperature tensile stress thermal expansion TiO2 tion tip radius values vapor Varshneya velocity viscosity water content Wiederhorn Young's modulus ZrO2