Accession Number:

AD0736480

Title:

Materials Processing of Rare Earth-Cobalt Permanent Magnets

Descriptive Note:

Semi-annual interim technical rept. no. 2, 1 Jan-30 Jun 1971

Corporate Author:

STANFORD RESEARCH INST MENLO PARK CA

Report Date:

1971-08-01

Pagination or Media Count:

66.0

Abstract:

Rare earth-cobalt intermetallic compounds show promise for permanent magnets with a higher energy product than are currently available. Because fine particles are required for magnetic alignment and sintering, and since the coercivities of these fine particles are sensitive to overgrinding and particle surface preparation, various powder preparation techniques were investigated as alternative methods for producing strain-free particles. Methods that were investigated include plasma spheroidization, plasma annealing, electrodeposition in fused salts, electrodeposition in organic liquids, direct reduction from amalgam droplets, precipitation from liquid zinc alloy solutions and direct metallothermic reduction.

Subject Categories:

  • Electrical and Electronic Equipment
  • Metallurgy and Metallography
  • Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE