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Publication Citation: Fracture of Silicate Glasses: Ductile or Brittle?

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Author(s): J -. Guin; Sheldon M. Wiederhorn;
Title: Fracture of Silicate Glasses: Ductile or Brittle?
Published: Date Unknown
Abstract: Atomic force microscopy is used to investigate the possibility of crack tip cavitation during crack growth in silicate glasses. Matching areas on both surfaces of a crack were mapped and then compared for soda-lime silicate glass and for silica glass. For both glasses surfaces matched to better than 0.3 nm normal to the surface and 5 nm parallel to the surface. We could find no evidence for cavity formation in our study and suggest that completely brittle fracture occurs in glass.
Citation: Physical Review Letters
Keywords: atomic force microscopy;crack growth;fracture;glass
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