Silicate Glass Surfaces Research Articles

The advantages of flame polishing the surface of lead silicate glass

The advantages of flame polishing the surface of lead silicate glass

Hydrogen Atom Recombination on Glass Surfaces

The adsorption and recombination of H atoms at temperatures between 77 and 110 °K have been studied on various silicate glass surfaces consisting of fused silica, porous Vycor with surface adsorbed water, and porous Vycor with chemically altered surfaces achieved by replacement of the surface functional hydroxyl group by chlorine, fluorine, and methoxy substituents.The concentration of adsorbed H atoms was determined by a measurement of the e.s.r. signal and the kinetics of the disappearance of the hydrogen atoms were observed to be second order in mobile atoms, consistent with a diffusion controlled recombination process.The results require that there be at least two types of surface adsorbed atoms, namely, weakly physically adsorbed atoms that are mobile and immobile. Identification of these adsorbed atom types with a particular surface functional feature leading to the adsorption is proposed.The activation energy for the second order decay of hydrogen atoms at the surface was found to vary from 1.0 to 2.3 kcal/mol, depending upon the chemical nature of the surface. A correlation between this activation energy and an electronegativity function of the surface group is presented.

Distribution of fragments from spontaneous fission of Cm244, from track diameters on the surface of silicate glass

Distribution of fragments from spontaneous fission of Cm244, from track diameters on the surface of silicate glass

Protecting the surface of silicate glasses with silicone compounds

Protecting the surface of silicate glasses with silicone compounds

Structure in the Fracture Surface of Silicate Glass

Journal of the American Ceramic SocietyVolume 46, Issue 2 p. 102-103 Structure in the Fracture Surface of Silicate Glass V. J. MORAN, V. J. MORANSearch for more papers by this author V. J. MORAN, V. J. MORANSearch for more papers by this author First published: February 1963 https://doi.org/10.1111/j.1151-2916.1963.tb11686.xCitations: 1 At the time this work was done, the writer was research fellow, Department of Metallurgy, University of Sheffield, Sheffield, England. He is now senior lecturer in metallurgy, School of Metallurgy, The University of New South Wales, Kensington, Australia. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL No abstract is available for this article.Citing Literature Volume46, Issue2February 1963Pages 102-103 RelatedInformation