Enhanced shape memory and superelasticity in small-volume ceramics: a perspective on the controlling factors
Schuh, Christopher A.
Gan, Chee Lip
Date of Issue2017
School of Materials Science and Engineering
Shape memory ceramics show potential for energy damping and actuation applications. In particular, small-scale structures of zirconia-based ceramics demonstrate significantly enhanced shape memory and superelastic properties compared with their bulk counterparts, mainly because an oligocrystalline or single-crystal microscale structure reduces mismatch stresses amongst grains. In this Prospective article, we review recent experiments that explore the shape memory properties of small-scale zirconia-based ceramics, including the effects of composition, sample and grain size, and cyclic loading. These factors are reviewed with an eye toward rendering shape memory ceramics more useful in future applications.
© 2017 Materials Research Society. This is the author created version of a work that has been peer reviewed and accepted for publication by MRS Communications, Materials Research Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1557/mrc.2017.99].