Can I read Low-hysteresis Shape-memory Ceramics Designed by Multimode Modelling on EtoBox?

Low-hysteresis Shape-memory Ceramics Designed by Multimode Modelling by Edward L. Pang; Gregory B. Olson; Christopher A. Schuh is a Physics and Astronomy article available to read on EtoBox.

What is Low-hysteresis Shape-memory Ceramics Designed by Multimode Modelling about?

Zirconia ceramics exhibit a martensitic phase transformation that enables large strains of order 10%, making them prospects for shape-memory and superelastic applications at high temperature. Similarly to other martensitic materials, this transformation strain can be engineered by carefully alloying to produce a more commensurate transformation with reduced hysteresis (difference in transformation temperature on heating and cooling). However, such 'lattice engineering' in zirconia is complicated by additional physical constraints: there is a secondary need to manage a large transformation volume change, and to achieve transformation temperatures high enough to avoid kinetic barriers. Here we present a method of augmenting the lattice engineering approach to martensite design to address these additional constraints, incorporating modern computational thermodynamics and data science tools to span complex multicomponent spaces for which no data yet exist. The result is a new zirconia composition with record low hysteresis of 15 K, which is about ten times less transformation hysteresis compared to typical values (and approximately five times less than the best values reported so far).

Who reads Low-hysteresis Shape-memory Ceramics Designed by Multimode Modelling?

Author

Edward L. Pang; Gregory B. Olson; Christopher A. Schuh

Publisher

Springer Science and Business Media LLC

Published

2022

Language

EN

Field

Physics and Astronomy (Physical Sciences)