Heterogeneity in the Small-Scale Deformation Behavior of Disordered Nanoparticle Packings.
basic_science · Level V
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- Record sourced from PubMed, PMID 26977533.
- Also identified by DOI 10.1021/acs.nanolett.5b05319.
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Abstract
Atomic force microscopy-based nanoindentation is used to image and probe the local mechanical properties of thin disordered nanoparticle packings. The probed region is limited to the size of a few particles, and an individual particle can be loaded and displaced to a fraction of a single particle radius. The results demonstrate heterogeneous mechanical response that is location-dependent. The weak locations may be analogous to the "soft spots" previously predicted in glasses and other disordered packings.