TY - JOUR
T1 - Shear Pleasure
T2 - The Structure, Formation, and Thermodynamics of Crystallographic Shear Phases
AU - Voskanyan, Albert A.
AU - Navrotsky, Alexandra
N1 - Funding Information:
This work was supported by the US Department of Energy Office of Basic Energy Sciences, grant DE-FG02-03ER46053
Publisher Copyright:
Copyright © 2021 by Annual Reviews. All rights reserved.
PY - 2021/7/26
Y1 - 2021/7/26
N2 - A renaissance of interest in crystallographic shear structures and our recent work in this remarkable class of materials inspired this review. We first summarize the geometrical aspects of shear plane formation and possible transformations in ReO3, rutile, and perovskite-based structures. Then we provide a mechanistic overview of crystallographic shear formation, plane ordering, and propagation. Next we describe the energetics of planar defect formation and interaction, equilibria between point and extended defect structures, and thermodynamic stability of shear compounds. Finally, we emphasize the remaining challenges and propose future directions in this exciting area.
AB - A renaissance of interest in crystallographic shear structures and our recent work in this remarkable class of materials inspired this review. We first summarize the geometrical aspects of shear plane formation and possible transformations in ReO3, rutile, and perovskite-based structures. Then we provide a mechanistic overview of crystallographic shear formation, plane ordering, and propagation. Next we describe the energetics of planar defect formation and interaction, equilibria between point and extended defect structures, and thermodynamic stability of shear compounds. Finally, we emphasize the remaining challenges and propose future directions in this exciting area.
KW - Crystallographic shear
KW - Extended defects
KW - Magnéli phases
KW - Shear energetics
KW - Shear structure
KW - Wadsley-Roth
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U2 - 10.1146/annurev-matsci-070720-013445
DO - 10.1146/annurev-matsci-070720-013445
M3 - Review article
AN - SCOPUS:85111440009
SN - 1531-7331
VL - 51
SP - 521
EP - 540
JO - Annual Review of Materials Research
JF - Annual Review of Materials Research
ER -