Neutron diffraction structural studies of Nd{sub 2}Fe{sub 17{minus}x}M{sub x}C{sub y}

Journal Article · Sun Sep 01 04:00:00 EDT 1996 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.538878· OSTI ID:400768

Luo, H; Hu, Z; Yelon, W B ^[1]; Ezkwenna, P C; Marasinghe, G K; James, W J ^[2]

---

1. Univ. of Missouri Research Reactor, Columbia, MO (United States)
2. Univ. of Missouri, Rolla, MO (United States). Materials Research Center

Four samples of Nd{sub 2}Fe{sub 17{minus}x}M{sub x}C{sub y} (where M = Al, Ga, Ti, V) were synthesized using rf induction melting and C was introduced from the melt. Structural studies were then carried out using neutron diffraction. All samples were confirmed to have the Th{sub 2}Zn{sub 17}-type rhombohedral structure with expanded unit cell volumes. However, the volume effect, as well as the site preference of the substitutional atoms (M) is different among these samples and is different compared to their uncarbided counterparts. The C atoms were found to reside in the 9e site for all samples. The observed Curie temperature is higher for samples with higher C concentrations.

• OSTI ID: 400768
• Report Number(s): CONF-960425--
• Journal Information: IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 5Pt2 Vol. 32; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
CARBON ADDITIONS
CRYSTAL STRUCTURE
CURIE POINT
EXPERIMENTAL DATA
GALLIUM ALLOYS
IRON BASE ALLOYS
NEODYMIUM ALLOYS
SYNTHESIS
TITANIUM ALLOYS
VANADIUM ALLOYS