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Title: Topography and Mechanical Property Mapping of International Simple Glass Surfaces with Atomic Force Microscopy

Quantitative Nanomechanical Peak Force (PF-QNM) TappingModeTM atomic force microscopy measurements are presented for the first time on polished glass surfaces. The PF-QNM technique allows for topography and mechanical property information to be measured simultaneously at each pixel. Results for the international simple glass which represents a simplified version of SON68 glass suggests an average Young s modulus of 78.8 15.1 GPa is within the experimental error of the modulus measured for SON68 glass (83.6 2 GPa) with conventional approaches. Application of the PF-QNM technique will be extended to in situ glass corrosion experiments with the goal of gaining atomic-scale insights into altered layer development by exploiting the mechanical property differences that exist between silica gel (e.g., altered layer) and pristine glass surface.
  1. ORNL
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Resource Relation:
Conference: 2nd International Summer School on Nuclear Glass Wasteform: Structure, Properties and Long-Term Behavior, SumGLASS 2013, Pont Du Gard, France, 20130923, 20130927
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
EM USDOE - Environmental Restoration and Waste Management (EM); USDOE Laboratory Directed Research and Development (LDRD) Program
Country of Publication:
United States
Glass corrosion; dissolution; alteration layer; silica surfaces; nanomechanical peak-force; atomic force microscopy