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Crystals 2017, 7(11), 324; doi:10.3390/cryst7110324

Indentation Plasticity and Fracture Studies of Organic Crystals

SRM Research Institute, Department of Physics and Nanotechnology, SRM University, Kattankulathur, Chennai 603203, India
Author to whom correspondence should be addressed.
Academic Editor: Ronald W. Armstrong
Received: 23 September 2017 / Revised: 18 October 2017 / Accepted: 23 October 2017 / Published: 27 October 2017
(This article belongs to the Special Issue Crystal Indentation Hardness)


This review article summarizes the recent advances in measuring and understanding the indentation-induced plastic deformation and fracture behavior of single crystals of a wide variety of organic molecules and pharmaceutical compounds. The importance of hardness measurement for molecular crystals at the nanoscale, methods and models used so far to analyze and estimate the hardness of the crystals, factors affecting the indentation hardness of organic crystals, correlation of the mechanical properties to their underlying crystal packing, and fracture toughness studies of molecular crystals are reviewed. View Full-Text
Keywords: nanoindentation; hardness; plasticity; organic crystals; fracture; deformation nanoindentation; hardness; plasticity; organic crystals; fracture; deformation

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Mannepalli, S.; Mangalampalli, K.S.R.N. Indentation Plasticity and Fracture Studies of Organic Crystals. Crystals 2017, 7, 324.

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