Accession Number:

AD0734244

Title:

Research and Development of Rare Earth-Transition Metal Alloys as Permanent-Magnet Materials

Descriptive Note:

Semiannual interim technical rept. 1 Jan-30 Jun 1971

Corporate Author:

DAYTON UNIV OH RESEARCH INST

Personal Author(s):

Report Date:

1971-10-01

Pagination or Media Count:

133.0

Abstract:

Intermetallic phases R2Co,Fe17 with R Ce, Pr, Nd, Sm, Y, and MMCe-rich mischmetal have been prepared and their metallurgical and magnetic properties studied. The melting behavior, phase transformations and Curie temperatures, lattice constants and directions of easy magnetization of the R2Co,Fe17 phases were determined and the results are presented. All systems except R Nd have compositional ranges in which the easy direction of magnetization is the c-axis. The praseodymium-cobalt phase diagram has been revised and extended. Three previously unreported intermetallic phases were observed, and the structure of one, Pr2Co1.7, is reported.

Subject Categories:

  • Electrical and Electronic Equipment
  • Miscellaneous Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE