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Calendar: ALS Calendar
Title: ALS Special Seminar | Mike McHenry
When: 03/14/2013 11:00 AM - 12:00 PM
Description: ALS Special Seminar

Thu, March 14, 2013
11 - 12
6-2202

Host:
Peter Fischer

Presented by:
Mike McHenry
Materials Science and Engineering Department, Carnegie Mellon University

Title:
Nanocomposite Magnets for Energy Applications

Abstract:
Recent USDOE workshops highlight the need for advanced soft
magnetic materials leveraged in novel designs of power electronic
components and systems for power conditioning and grid integration.
Similarly soft magnetic materials figure prominently in applications in
electric vehicles and high torque motors. Dramatic weight and size
reductions are possible in such applications by hold potential for
applications in active magneocaloric cooling of such devices. Bulk and
thin film soft magnet sensors can contribute to the search for oil and
critical materials. Opportunities for state of the art soft magnetic to
impact such applications have been furthered by investment by
USDOD Programs and other world wide efforts to advance these
materials for applications in military electric vehicle technologies.
This talk will focus on the framework for developing high frequency (f) magnetic materials for grid integration of renewable energy sources bridging the gap between materials
development, component design, and system analysis. Examples from recent efforts to
develop magnetic technology for lightweight, solid-state, medium voltage (>13 kV) energy
conversion for MW-scale power applications will be illustrated. The potential for materials in
other energy applications (motors, cooling, sensors, RF metal joining, etc.) will also be
introduced. The scientific framework for nanocomposite magnetic materials that make high
frequency components possible will be discussed in terms of the materials paradigm of
synthesis à structure à properties à performance. In particular, novel processing and the
control of phase transformations and ultimately nanostructures has relied on the ability to
probe structures on a nanoscale. Examples of nanostructural control of soft magnetic
properties will be illustrated.

Biography
Michael E. McHenry is Professor of Materials Science and Eng. (MSE), with an appointment
in Physics at Carnegie Mellon. He graduated with a B.S. in Metallurgical Eng. and Materials
Science from Case Western Reserve in 1980. From 1980 to 1983 he was employed as
Process Engineer at the U.S. Steel Lorain Works. In 1988 he earned a Ph.D in Materials
Science and Eng. from MIT. He was a Director's Funded Post-doctoral Fellow at Los Alamos
Lab from 1988 to 1989. He has expertise in the area of nanocrystalline magnetic materials
including soft magnetic nanocomposites, faceted ferrite nanoparticles and materials for
power conversion, biomedical, energy and data storage applications. His research involves
rapid solidification processing, plasma and solution synthesis of nanoparticles, magnetic field
of processing materials, structural characterization by x-rays and electron microscopy and
magnetic properties characterization as a function of field, temperature and frequency. He
directed a Multidisciplinary University Research Initiative (MURI) on high temperature
magnetic materials for aircraft power applications and currently leads an ARPA-E program in
magnetic materials for power electronics. He has served as proceeding Editor, Publication
Chair and a member of the Program Committee for the Magnetism and Magnetic Materials
Location: 6-2202 Conf Room
Author: areza@lbl.gov