SURFACE INVESTIGATIONS ON PERMANENT MAGNETS,
Abstract
Magnets of iron, cobalt and iron-cobalt particles were made with different matrix materials. Magnets pressed from a gel of magnetic particles and mercury were used to evaluate the progress of the various phases of the process. These magnets are commonly referred to as ''mercury matrix'' magnets. In order to eliminate the mercury these magnets were distilled at high temperatures under a vacuum. This resulted in the production of porous blocks of fine particles which were either vacuum impregnated with resins or crushed, mixed with binder and repressed. Lead was added to the heat treated gel before pressing. These magnets were distilled, crushed and repressed. Magnets were made by superficially oxidizing submicron particles of iron-cobalt. Gross structure in fine particle magnets was revealed by electron micrographs. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1963
- Accession Number
- AD0420234
Entities
People
- K. J. Kronenberg
- R. E. Quear