Open AccessShape Memory: Self‐Healing and Shape Memory Effects in Gold Microparticles through the Defects‐Mediated Diffusion (Adv. Sci. 8/2017)
Author(s) -
Kovalenko Oleg,
Brandl Christian,
Klinger Leonid,
Rabkin Eugen
Publication year - 2017
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201770038
Subject(s) - shape memory alloy , annealing (glass) , mesoscopic physics , materials science , nanotechnology , micrometer , diamond , diffusion , self healing , chemical physics , composite material , condensed matter physics , optics , chemistry , thermodynamics , physics , medicine , alternative medicine , pathology
In article number 1700159 , Eugen Rabkin and co‐workers observe the self‐healing and shape memory effects in single crystalline faceted gold particles of sub‐micrometer dimensions. Particles indented with a sharp diamond tip restored their original asymmetric shape after annealing at 600 °C. Atomistic and mesoscopic models demonstrate how a combination of plastic deformation and diffusion, which are classical examples of irreversible processes, can lead to a reversible shape recovery of the deformed particles.