Accession Number:

AD0760178

Title:

Technology Development for Transition Metal-Rare Earth High-Performance Magnetic Materials

Descriptive Note:

Semiannual interim technical rept. no. 5, 1 Jul-31 Dec 1972

Corporate Author:

GENERAL ELECTRIC CORPORATE RESEARCH AND DEVELOPMENT SCHENECTADY NY

Personal Author(s):

• Becker, Joseph J.

Report Date:

1973-04-01

Pagination or Media Count:

49.0

Abstract:

The objective of this work is to develop the technology of high- performance transition metal-rare earth magnets for critical applications. High-performance permanent magnets are defined in this context as those having remanences greater than ten thousand gauss and permeabilities of very nearly unity throughout the second and into the third quadrants of their hysteresis loop. Such technology is to be developed through 1 studies of the origin of the intrinsic coercive force in high-anisotropy materials, 2 development of information on phase equilibria in these materials, and 3 identification and investigation of new materials. The progress that has been made during the period covered by this report is described under these three major headings.

Descriptors:

• *MAGNETS
• *MAGNETIC ALLOYS
• ANISOTROPY
• SINTERING
• INTERMETALLIC COMPOUNDS
• COBALT ALLOYS
• MANUFACTURING
• MAGNETIC PROPERTIES
• RARE EARTH ELEMENTS

Subject Categories:

• Electrical and Electronic Equipment
• Metallurgy and Metallography
• Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE