Accession Number:

ADA458377

Title:

Magnetic Meta-Materials for Electromagnetic Applications

Descriptive Note:

Final rept. 19 Jun 2001-19 May 2005

Corporate Author:

DELAWARE UNIV NEWARK DEPT OF PHYSICS AND ASTRONOMY

Personal Author(s):

Report Date:

2006-06-01

Pagination or Media Count:

67.0

Abstract:

The most significant achievements of the project are 1 Development of R2Fe14B-based nanocomposite permanent magnets with maximum energy product BHm50 MGOe, 2 Improvement of the magnetic properties of the existing Sm2Co17-type magnets with BHm close to their theoretical limit and with higher operating temperatures, up to 500 deg C, 3 Development of new nanocomposite permanent magnets based on a hard magnetic phase e.g., 217, 15 and a soft magnetic phase Fe-based, 4 Development of new hybrid permanent magnets based on two hard magnetic phases combinations between 2141, 217 and 15, 5 Development of soft magnetic nanocomposites for high temperature Fe-CoW and high frequency artificial ferrites applications. The obtained results encompassed the fabrication of new materials with outstanding, enhanced characteristics, as well as the theoretical description and understanding of their magnetic properties. New effects have been also put in evidence and opened up new perspectives in the understanding of the magnetic coupling and hardening mechanism.

Subject Categories:

  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE