Colloquia

Seminars

• Astronomy and Space Physics
• Atomic, Molecular, and Optical Physics
• Condensed Matter
• Fluids and Plasmas
• Particle Physics
• Calendar of Events

Graduation Commencement

Condensed Matter Seminar Abstract

Date: April 15th (215 Conference Room Sharp Lab at 2:00pm)

Speaker: Alison Flatau, University of Maryland

Title: Advances in Structural Magnetostrictive Alloys

Abstract:

Magnetostrictive materials belong to the family of smart materials that are enabling major advances in noise, vibration and shape control and new approaches to structural health monitoring.  An introduction to magnetostrictive materials will be presented, followed by an emphasis on the new structural magnetostrictive alloy Galfenol with discussion of current and potential applications that range from nano-and mems sensors to large scale sonar devices.  The presentation will include a summary of on-going research in our ONR MURI Program that in addition to the Univ. Maryland, includes researchers from Iowa State Univ., Univ. Minn, Ohio State, Penn State, Rutgers and Va Tech. This program is focused on structural magnetostrictive alloys, with an emphasis on the iron-gallium alloy known as Galfenol. A discussion of some of the challenges associated with transitioning this relatively new alloy to commercial scale production and thoughts on taking advantage of its unique structural attributes (e.g. ductility and a negative Poison's ratio) will be included in the presentation.