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In‐situ Straining Experiments on Glass Foils in the HVEM
Author(s) -
Hopfe J.,
Appel F.,
Schmidt V.
Publication year - 1979
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19790141114
Subject(s) - foil method , materials science , in situ , composite material , deformation (meteorology) , ultimate tensile strength , metallurgy , chemistry , organic chemistry
Crack propagation in Na 2 OCaOSiO 2 glass foils with thicknesses between 0.4 μm and 4 μm was studied by HVEM in‐situ straining experiments. The propagation of cracks could be achieved by a stepwise loading of the glass foils in a quantitative HVEM tensile tilting stage. The contrasts observed in front of the crack tips indicate a plastic deformation of the glass foils. The influence of the imaging electrons on the mechanical properties of the foil material is discussed.