Accession Number:
ADA180553
Title:
Studies of Materials Having Significance for the Production of High Energy Magnets.
Descriptive Note:
Final rept. 1 Feb 84-31 Jan 87,
Corporate Author:
CARNEGIE-MELLON UNIV PITTSBURGH PA
Personal Author(s):
Report Date:
1987-04-03
Pagination or Media Count:
12.0
Abstract:
Magnetic properties saturation magnetizations, Curie temperatures and anisotropy fields of a number of rare earth-transition metal systems are reported. Systems studied fall into five categories 1 15 and 217 compounds, 2 R2T14B, where R is rare earth and T is a 3d transition metal, 3 borides related to R2Fe14B, 4 intermetallic hydrides and 5 miscellaneous alloys. The work has revealed a number of interesting features of these systems a when R in RCo5 systems is partially replaced by Ti, Zr or Hf, T sub c is sharply incremented b PrCo8Fe9 has a theoretical BH sub max of 68 MGOe c the R2T14B systems exhibit the same magnetic coupling systematics as the binary RT sub x systems d the R2Fe14B systems exhibit the same magnetic coupling systematic structures - conical, axial and planar anisotropy e the RCo4B systems have small or negative anisotrophy and hence are unsuitable for magnetic fabrication f hydrogenation weakens the uniaxial anisotrophy in R2Fe14B systems. Keywords High energy magnetics Rare earth alloys Rare earth iron borides.
Descriptors:
- *MAGNETS
- *HIGH ENERGY
- *ANISOTROPY
- COUPLING(INTERACTION)
- CURIE TEMPERATURE
- FABRICATION
- BORIDES
- HYDROGENATION
- IRON COMPOUNDS
- MAGNETIC FIELDS
- MAGNETIC MATERIALS
- MAGNETIC PROPERTIES
- ALLOYS
- MATERIALS
- METALS
- PLANAR STRUCTURES
- PRODUCTION
- RARE EARTH ALLOYS
- RARE EARTH COMPOUNDS
- RARE EARTH ELEMENTS
- STRUCTURES
- TEMPERATURE
- TRANSITION METAL COMPOUNDS
Subject Categories:
- Electricity and Magnetism