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- Title
Fracture Testing at Small-Length Scales: From Plasticity in Si to Brittleness in Pt.
- Authors
Jaya, B.; Jayaram, Vikram
- Abstract
The field of micro-/nano-mechanics of materials has been driven, on the one hand by the development of ever smaller structures in devices, and, on the other, by the need to map property variations in large systems that are microstructurally graded. Observations of 'smaller is stronger' have also brought in questions of accompanying fracture property changes in the materials. In the wake of scattered articles on micro-scale fracture testing of various material classes, this review attempts to provide a holistic picture of the current state of the art. In the process, various reliable micro-scale geometries are shown, challenges with respect to instrumentation to probe ever smaller length scales are discussed and examples from recent literature are put together to exhibit the expanse of unusual fracture response of materials, from ductility in Si to brittleness in Pt. Outstanding issues related to fracture mechanics of small structures are critically examined for plausible solutions.
- Subjects
PLATINUM; BRITTLENESS; FRACTURE mechanics; DUCTILITY; MECHANICAL properties of metals
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2016, Vol 68, Issue 1, p94
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-015-1489-2