Structure and magnetic properties of R{sub 2}Fe{sub 15}Si{sub 2}C{ital {sub y}} (R=Nd, Sm, Gd, and Er)

Journal Article · Tue Apr 01 04:00:00 EST 1997 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.365422· OSTI ID:496494

Li, Z W; Morrish, A H ^[1]

---

1. Department of Physics, University of Manitoba, Winnipeg, Manitoba, R3T 2N2 (CANADA)

A new series, R{sub 2}Fe{sub 15}Si{sub 2}C{ital {sub y}} (R=Nd, Sm, Gd, and Er), has been prepared by heating powders of their corresponding parents in CH{sub 4} gas at 700{degree}C instead of about 500{degree}C. For these carbides, the carbon concentrations are close to the theoretical value of {ital y}=3 and the 2:17 structure is still retained up to 900{degree}C. The Curie temperatures are 620{endash}650 K and the saturation magnetizations are 71{endash}113 and 67{endash}129 emu/g at {ital T}=300 and 80 K, respectively. The anisotropy fields are larger than 70 and 110 kOe at {ital T}=300 and 80 K, respectively, for Sm{sub 2}Fe{sub 15}Si{sub 2}C{ital {sub y}}. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 496494
• Report Number(s): CONF-961141--
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 81; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CARBIDES
CRYSTAL STRUCTURE
CURIE POINT
ERBIUM COMPOUNDS
FERROMAGNETIC MATERIALS
GADOLINIUM COMPOUNDS
IRON ALLOYS
IRON COMPOUNDS
LATTICE PARAMETERS
MAGNETIZATION
NEODYMIUM COMPOUNDS
PERMANENT MAGNETS
POWDER METALLURGY
POWDERS
RARE EARTH ALLOYS
SAMARIUM COMPOUNDS
SILICON ALLOYS
SILICON COMPOUNDS
X-RAY DIFFRACTION