Superelasticity in Micro / Nano Pillars of Cu-Al-Be Shape Memory Alloys

JOSÉ F. GÓMEZ-CORTÉS; VALERIA FUSTER; JOSÉ SAN JUAN; MARÍA L. NÓ

Boston

Congreso; 2018 Materials Research Society Fall Meeting & Exhibit; 2018

Materials Research Society

Good shape memory and superelastic behavior were foundin Cu-Al-Ni SMA [1, 2], even along thousand of cycles [3], and a size effect onsuperelasticity was recently reported [4]. However, up to now Cu-Al-Ni is theonly system exhibiting good properties at nano-scale, with view to theirapplications in MEMS. The aim of the present work is to explore whetherCu-Al-Be SMA also exhibit good properties at the nano-scale.[1] J. San Juan, M.L. Nó, C.A. Schuh, AdvancedMaterials 20, 272 (2008).[2] J. San Juan, M.L. Nó, C.A. Schuh, NatureNanotechnology 4, 415 (2009) [3] J. San Juan et al., Applied Physics Letters 104,011901 (2014).