PREPARATION OF THE INTERMETALLIC COMPOUND YCO5 BY THE AMALGAM PROCESS,

Abstract

The intermetallic compound YCo5 promises to be an excellent material for high quality permanent magnets. It is, however, essential to prepare this compound in single domain particles of a grain size of the order of 10 micromillimeters. The preparation of YCo5-powders by means of the amalgam process is described in detail. The process consists of several steps, namely: (1) Preparation of Y-amalgam by solving yttrium-metal at 450C in liquid mercury; (2) preparation of Co-amalgam by electrolysis; (3) mixing of the amalgams; (4) distillation of the mercury at temperatures up to 1100C. By X-ray investigations the structure of YCo5 was confirmed and the range of homogeneity established to be very small. Metallographic and magnetic measurements proved that the amalgam process actually is a preferable means for preparing YCo5 powders. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 03, 1966
Accession Number
AD0658218

Entities

People

  • Franz Lihl

Tags

DTIC Thesaurus Topics

  • Absorbers (Materials)
  • Advanced Materials
  • Determinants (Mathematics)
  • Distillation
  • Electrolysis
  • Engineered Materials
  • Grain Size
  • Homogeneity
  • Intermetallic Compounds
  • Magnets
  • Materials
  • Measurement
  • Particles
  • Permanent Magnets
  • X Rays

Readers

  • Materials Science and Engineering.