Magnetic MaterialsConsultant: High Temperature Magnets, Noncrystalline Magnets and Magnetic Property Characterization

Expertise

• Magnetic properties of materials.
• High temperature magnets.
• Development of uniform and consistent magnetic properties.
• High temperature superconductors.
• Understanding fundamental magnetic properties of magnetic surfaces, interfaces and multilayers.
• Carbon-coated magnetic nanocrystal magnetic materials.
• Characterization of magnetic properties as a function of field, temperature and frequency.
• Plasma torch synthesis of metallic, C-coated, oxide, carbide and nitride nanoparticles.

Experience

1989 – Present, University Professor of Materials Science and Engineering

1988 – 1989, Directors Funded Post-Doctoral Associate, Los Alamos National Laboratory

1988 – 1989, Post-Doctoral Research, Massachusetts Institute of Technology

1983 – 1988, Research Assistant, Massachusetts Institute of Technology

1980 – 1983, Technology Implementation Program, United States Steel

Research Interests

• Developing an understanding of the magnetic properties of materials. This includes interfacing theoretical and experimental studies of magnetic and superconducting materials.
• Flux pinning in high temperature superconductors.
• Understanding the fundamental magnetic properties of magnetic surfaces, interfaces and multilayers.
• Continuing interest in the magnetic properties of icosahedral structures includes the study of magnetic quasicrystals and the magnetic and superconducting properties of fullerenes.
• Study of carbon-coated magnetic nanocrystals produced by the Kratschmer-Huffman carbon arc method and fine particle magnetism in the same. This lead to studies of the plasma torch synthesis of metallic, C-coated, oxide, carbide and nitride nanoparticles.
• Reactive gas plasma torch synthesis to produce nanocrystalline ferrite materials for high frequency applications. The surface structure, and its influence on properties, is being studied in faceted ferrite nanoparticles.
• Active research in bulk and thin film soft magnetic metallic nanocomposites. These have excellent soft magnetic properties as measured by the figures of merit of combined induction and magnetic permeability.
• High temperature magnetic properties including the study of HITPERM nanocomposites with a'(B2)-FeCo formed with significantly improved high temperature magnetic properties.
• Research in rapid solidification processing, plasma synthesis of magnetic nanoparticles and characterization of magnetic properties as a function of field, temperature and frequency.

Honors & Publications

• Published over 200 scientific journal articles.
• Recipient of an NSF National Young Investigator Award and directed a Multidisciplinary University Research Initiative (MURI) for developing high temperature magnetic materials for aircraft power applications.
• Publication Chair for the Magnetism and Magnetic Materials (MMM) Conference.
• He is a 1998 Honorary Member of the Indian Materials Research Society.

Recent Awards and Activities

• National Academy of Sciences Post-doctoral Panel, 2004
• Philbrook Award for Excellence in Teaching by CMU MSE department, 2003
• Editor, Joint Magnetism and Magnetic Materials/Intermag Conference Jan., 2004, Anaheim, CA.
• Publication Chair, Magnetism and Magnetic Materials Conference Nov., 2004, Jacksonville, FL.
• Organizer for the 2003 FALL and 2004 Spring MRS Meeting Research Tools Symposium.

Education

PhD., Electronic Materials, Massachusetts Institute of Technology

B.S., Materials Science and Engineering, Case Western Reserve University