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Damage induced by monotonic and cyclic spherical indentation in polycrystalline diamond (PCD)

Author
Marro, F.G.; Mestra, A.; Jimenez-Pique, E.; Ozbayraktar, S.; Llanes, L.
Type of activity
Journal article
Journal
International journal of refractory metals and hard materials
Date of publication
2015-03-01
Volume
49
First page
292
Last page
301
DOI
https://doi.org/10.1016/j.ijrmhm.2014.09.007 Open in new window
URL
http://www.sciencedirect.com/science/article/pii/S0263436814002248 Open in new window
Abstract
The spherical indentation technique has been successfully implemented for inducing controlled damage, under both monotonic and cyclic loading conditions, in three microstructurally different polycrystalline diamond (PCD) grades. Damage evolution under increasing applied load and/or number of cycles has been assessed, and the attained results point out the important role of microstructure on nature, aspect and evolution of damage in these materials. At the microscopic level, transgranular fractur...
Keywords
Damage, Diamond, Fracture, Indentation, Toughness, ceramics, contact damage, fatigue, fracture, hardmetals, layer structures, quasi-plastic deformation, strength degradation
Group of research
CIEFMA - Structural Integrity, Micromechanics and Materials Reliability Centre
CRnE - Barcelona Research Center in Multiscale Science and Engineering

Participants