Title :

Ferroelasticity in MgSiO3 bridgmanite: Assessing the intrinsic structure and motion of (-110) twin walls with atomic-scale simulations

Author(s) :

Hirel, Pierre [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Unité Matériaux et Transformations - UMR 8207 [UMET]
Carrez, Philippe [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Unité Matériaux et Transformations - UMR 8207 [UMET]
Cordier, Patrick [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Unité Matériaux et Transformations - UMR 8207 [UMET]

Journal title :

Scripta Materialia

Volume number :

188

Pages :

102-106

Publisher :

Elsevier BV

Publication date :

2020-11

Article status :

Publié

ISSN :

1359-6462

English keyword(s) :

Simulation
Mechanical properties
Crystal defects
Silicates
Twin boundaries

HAL domain(s) :

Planète et Univers [physics]/Sciences de la Terre
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]

English abstract : [en]

Bridgmanite MgSiO3 with perovskite structure exhibits a ferroelastic behaviour via the motion of {110} twin walls. We use atomic-scale simulations to investigate the properties of (-110) twin walls in bridgmanite. We resolve ...
Show more >Bridgmanite MgSiO3 with perovskite structure exhibits a ferroelastic behaviour via the motion of {110} twin walls. We use atomic-scale simulations to investigate the properties of (-110) twin walls in bridgmanite. We resolve their atomic structure and obtain the minimum energy path for their motion in a wide pressure range relevant to the Earth's lower mantle.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

European Project :

MULTISCALE MODELLING OF THE RHEOLOGY OF MANTLE MINERALS
Rheology of Earth materials: closing the gap between TIMEscales in the laboratory and in the MANtle

Administrative institution(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Plasticité

Submission date :

2020-07-22T18:30:53Z
2020-08-25T14:32:58Z