Effect of metalloid substitutions on the magnetic properties of Fe-R-B alloys

Journal Article · Wed Jan 01 00:00:00 EST 1986 · Appl. Phys. Commun.; (United States)

OSTI ID:6616913

Tao, Y F; Hadjipanayis, G C

Fe-R-B compounds show outstanding hard magnetic properties with coercivities higher than 10 kOe and energy products up to 45 MGOe. These properties are attributed to the anisotropic Fe/sub 14/R/sub 2/B phase. In this study the authors investigate the effect of metalloid substitutions on the magnetic properties of melt-spun Fe/sub 77/R/sub 15/B/sub 8-x/M/sub x/ alloys where % = Nd, Pr, Y, Tb, M = Si, P, C and x = 2 - 6. The Curie temperatures of amorphous and tetragonal Fe/sub 14/R/sub 2/(BM) phases are found to decrease almost linearly with metalloid substitution. The maximum effect has been observed for M = Carbon where the Curie temperature is decreased by about 60/sup 0/C for x = 4. A similar behavior has been observed for the coercivity but in this case the largest decrease has been found when M = Phosphorus. These results will be discussed in relation to magnetic anisotropy and microstructure studies and the magnetic harding behavior will be explained.

• Research Organization: Kansas State Univ., Manhattan
• OSTI ID: 6616913
• Report Number(s): CONF-8511278-
• Journal Information: Appl. Phys. Commun.; (United States), Vol. 6:1; Conference: 33. annual Midwest solid state conference, Kansas City, MO, USA, 8 Nov 1985
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BORON ALLOYS
METALLIC GLASSES
IRON ALLOYS
COERCIVE FORCE
CURIE POINT
NEODYMIUM ALLOYS
PRASEODYMIUM ALLOYS
TERBIUM ALLOYS
YTTRIUM ALLOYS
TEMPERATURE DEPENDENCE
ALLOYS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
360104* - Metals & Alloys- Physical Properties