Surface Chemistry and Structural Effects in the Stress Corrosion of Glass and Ceramic Materials.

摘要

The phenomena termed fractoemission was monitored in soda-lime-silica glass specimens during slow crack growth. No electron, ion, or photon signals were detected until crack velocities reached approximately (0.01 meters per second). These observations suggest that the more intense fractoemissions observed during fast fracture are due to dissipation of the excess energy associated with unstable crack growth, but more significantly that fractoemissions are not fundamental to crack propagation in glass. Keywords: Surface chemistry, Structural effects of glass and ceramic materials, Stress corrosion, Physical chemistry. (jg)