Possible samples

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SEM micrograph with indentation grid Indents spaced 10 μm horizontally and 20 μm vertically Wide variety within indent space Transitions in mechanical properties consistent with interphase regions Future work Evaluate mechanisms of degradation Improve correlation between phase and properties Elucidate interaction between indenter and surface Images from: R.D. Moser, P.G. Allison, and M.Q. Chandler. Characterization of Impact Damage in Ultra-High Performance Concrete Using Spatially Correlated Nanoindentation/SEM/EDX. Journal of Materials Engineering and Performance. August 2013

Transcript of Possible samples

Page 1: Possible samples

• SEM micrograph with indentation grid

• Indents spaced 10 μm horizontally and 20 μm vertically

• Wide variety within indent space• Transitions in mechanical

properties consistent with interphase regions

• Future work• Evaluate mechanisms of

degradation• Improve correlation

between phase and properties

• Elucidate interaction between indenter and surface

Images from: R.D. Moser, P.G. Allison, and M.Q. Chandler. Characterization of Impact Damage in Ultra-High Performance Concrete Using Spatially Correlated Nanoindentation/SEM/EDX. Journal of Materials Engineering and Performance. August 2013

Page 2: Possible samples

Concrete and Steel Reinforcement• Characterizing the interface

between concrete and steel reinforcement

• Interphases between materials not well defined

Image from: P.G. Allison, R.D. Moser, C.A. Weiss Jr., P.G. Malone, S.W. Morefield. Nanomechanical and chemical characterization of the interface between concrete, glass–ceramic bonding enamel and reinforcing steel. Construction and Building Materials 37 (2012) 638–644.

Page 3: Possible samples

UAB