Fracture Testing at Small-Length Scales: From Plasticity in Si to Brittleness in Pt

Jaya, Nagamani and Jayaram, Vikram (2016) Fracture Testing at Small-Length Scales: From Plasticity in Si to Brittleness in Pt. In: JOM, 68 (1). pp. 94-108.

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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.

Item Type:	Journal Article
Publication:	JOM
Publisher:	SPRINGER
Additional Information:	Copy right for this article belongs to the SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	28 Jan 2016 06:02
Last Modified:	28 Jan 2016 06:02
URI:	http://eprints.iisc.ac.in/id/eprint/53171

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