Challenges and Progress in High-Throughput Screening of Polymer Mechanical Properties by Indentation
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Kranenburg, Johannes M.; Tweedie, Catherine A.; van Vliet, Krystyn J.; Schubert, Ulrich S.
- Abstract:
- Depth-sensing or instrumented indentation is an experimental characterization
approach well-suited for high-throughput investigation of mechanical
properties of polymeric materials. This is due to both the precision of force
and displacement, and to the small material volumes required for quantitative
analysis. Recently, considerable progress in the throughput (number of
distinct material samples analyzed per unit time) of indentation experiments
has been achieved, particularly for studies of elastic properties. Future
challenges include improving the agreement between various macroscopic
properties (elastic modulus, creep compliance, loss tangent, onset of nonlinear
elasticity, energy dissipation, etc.) and their counterpart properties
obtained by indentation. Sample preparation constitutes a major factor for
both the accuracy of the results and the speed and efficiency of experimental
throughput. It is important to appreciate how this processing step may
influence the mechanical properties, in particular the onset of nonlinear
elastic or plastic deformation, and how the processing may affect the
agreement between the indentation results and their macroscopic analogues.
- Year:
- 2009
- Type of Publication:
- Article
- Journal:
- Advanced Materials
- Volume:
- 21
- Pages:
- 3551 - 3561