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@article{Gavalda-Diaz:2021:10.1007/s11837-021-04635-9,
author = {Gavalda-Diaz, O and Lyons, J and Wang, S and Emmanuel, M and Marquardt, K and Saiz, E and Giuliani, F},
doi = {10.1007/s11837-021-04635-9},
journal = {JOM},
pages = {1582--1588},
title = {Basal plane delamination energy measurement in a Ti3SiC2 MAX phase},
url = {http://dx.doi.org/10.1007/s11837-021-04635-9},
volume = {73},
year = {2021}
}
TY - JOUR
AB - The {0001} basal plane delamination dominating the crack-wake bridging in MAX phases at a bulk scale has been investigated by studying the small-scale fracture of a Ti3SiC2. In situ micro-double cantilever beam (DCB) tests in a scanning electron microscope were used to grow a stable crack along the basal plane, measure the fracture energy, and study the crack propagation mechanism at the nanoscale. The results show that the fracture energy (10–50 J/m2) depends on small misorientations angles (e.g., 5°) of the basal plane to the stress field. This induces permanent deformation which can be observed once the DCB has been unloaded. The nanoscale study of the crack shows that the plasticity at the crack tip is small, but a number of pairs of dislocations are forming at each side of the crack. Hence, this study helps to explain the enhanced fracture energy values and possible sources of energy dissipation in basal plane delamination, which is the one of the main toughening mechanisms in the bulk fracture of MAX phases.
AU - Gavalda-Diaz,O
AU - Lyons,J
AU - Wang,S
AU - Emmanuel,M
AU - Marquardt,K
AU - Saiz,E
AU - Giuliani,F
DO - 10.1007/s11837-021-04635-9
EP - 1588
PY - 2021///
SN - 1047-4838
SP - 1582
TI - Basal plane delamination energy measurement in a Ti3SiC2 MAX phase
T2 - JOM
UR - http://dx.doi.org/10.1007/s11837-021-04635-9
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000644333900001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/93191
VL - 73
ER -