A Simple Method to Characterize Twin Boundary Kinetics in Ni-Mn-Ga

Name

Bk Karki, Boise State UniversityFollow
Yotam Bachar, Technion - Israel Institute of Technology
Itay Harel, Technion - Israel Institute of Technology
Eithan Kaplan, Technion - Israel Institute of Technology
Arik Sabag, Technion - Israel Institute of Technology
Doron Shilo, Technion - Israel Institute of Technology
Peter Müllner, Boise State UniversityFollow
Eilon Faran, Technion - Israel Institute of Technology

Degree Program

Materials Science and Engineering, PhD

Major Advisor Name

Peter Müllner

Type of Submission

Scholarly Poster

Abstract

Magnetic Shape Memory (MSM) alloys are an extraordinary class of smart materials that can deform via twinning under relatively mild magnetic field (< 1 T). As such, characterization of twin boundary kinetics is essential to systematically reproduce the actuation properties of MSM elements. Here we present a relatively simple method to measure the transitional driving force (g_o) beyond which the twin boundary motion is extremely fast (>0.5 m/s).

Funding Information

National Science Foundation: grant No. NSF-DMR-1710640; United-States – Israel Binational Science Foundation (BSF): grant No. 2016662