TY - JOUR
T1 - On the origin of kinking in layered crystalline solids
AU - Plummer, Gabriel
AU - Rathod, Hemant J.
AU - Srivastava, Ankit
AU - Radovic, Miladin
AU - Ouisse, T.
AU - Yildizhan, Melike Mercan
AU - Persson, Per O. A.
AU - Lambrinou, Konstantza
AU - Barsoum, Michel W.
AU - Tucker, Garritt J.
N1 - Score=10
PY - 2021/3
Y1 - 2021/3
N2 - Kinking is a deformation mechanism ubiquitous to layered systems, ranging from the nanometer scale
in layered crystalline solids, to the kilometer scale in geological formations. Herein, we demonstrate its
origins in the former through multiscale experiments and atomistic simulations. When compressively
loaded parallel to their basal planes, layered crystalline solids first buckle elastically, then nucleate
atomic-scale, highly stressed ripplocation boundaries – a process driven by redistributing strain from
energetically expensive in-plane bonds to cheaper out-of-plane bonds. The consequences are far
reaching as the unique mechanical properties of layered crystalline solids are highly dependent upon
their ability to deform by kinking. Moreover, the compressive strength of numerous natural and
engineered layered systems depends upon the ease of kinking or lack there of.
AB - Kinking is a deformation mechanism ubiquitous to layered systems, ranging from the nanometer scale
in layered crystalline solids, to the kilometer scale in geological formations. Herein, we demonstrate its
origins in the former through multiscale experiments and atomistic simulations. When compressively
loaded parallel to their basal planes, layered crystalline solids first buckle elastically, then nucleate
atomic-scale, highly stressed ripplocation boundaries – a process driven by redistributing strain from
energetically expensive in-plane bonds to cheaper out-of-plane bonds. The consequences are far
reaching as the unique mechanical properties of layered crystalline solids are highly dependent upon
their ability to deform by kinking. Moreover, the compressive strength of numerous natural and
engineered layered systems depends upon the ease of kinking or lack there of.
KW - MAX phases
KW - Deformation behaviour
KW - Kinking
KW - Layered crystalline solids
UR - https://ecm.sckcen.be/OTCS/llisapi.dll/open/42348179
U2 - 10.1016/j.mattod.2020.11.014
DO - 10.1016/j.mattod.2020.11.014
M3 - Article
SN - 1369-7021
VL - 43
SP - 45
EP - 52
JO - Materials Today
JF - Materials Today
ER -