|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Frontiers in Materials Science, Engineering, and Technology: An FMD Symposium in Honor of Sungho Jin
||Domain Mechanisms for Magnetization and Deformation Behaviors of Fe-Ga Alloys
||Matt Tianen, Yongmei Jin
|On-Site Speaker (Planned)
Fe-Ga alloys exhibit significant magnetostriction under low magnetic field, show very small hysteresis, and perform under both compression and tension, making them very promising for actuator and sensor applications. To understand domain mechanisms underlying their magnetization and deformation behaviors, coupled magnetic and elastic domain evolutions under external magnetic and mechanical conditions are investigated. In-situ domain observation experiments using interference-contrast-colloid technique and computer simulations using phase field micromagnetic microelastic modeling are employed. Various domain patterns and complex domain evolutions are observed in Fe-Ga single crystals. The experimental results are explained using the computer simulations, revealing the important roles of competing long-range elastostatic and magnetostatic interactions in the domain phenomena. The domain mechanisms for magnetization and deformation in Fe-Ga alloys and their distinctive features from other magnetoelastic materials are discussed.
||Planned: Supplemental Proceedings volume