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Effect of Surface Forces on Subcritical Crack Growth in Glass
Author(s) -
Widerhorn Sheldon M.,
Fuller Edwin R.
Publication year - 1989
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1989.tb06109.x
Subject(s) - materials science , surface force , london dispersion force , dispersion (optics) , range (aeronautics) , surface (topology) , composite material , intensity (physics) , aqueous solution , silica glass , surface stress , ion , mineralogy , mechanics , chemistry , optics , molecule , surface energy , mathematics , geometry , physics , van der waals force , organic chemistry
Data on the growth of cracks tested in aqueous solutions were interpreted in terms of surface force theory. For applied stress intensity factors greater than 0.25 MPa · m½, the position and the slope of the curves and their dependence on pH and ion concentration can be explained in terms of surface force theory, provided these forces are of a magnitude and range that are representative of those involved in the cohensive bonding of solids. Weaker forces, such as structural, double‐layer, or dispersion forces, have little effect on crack growth in silica glass for K I > 0.25 MPa · m½.