Magnetic hardening of (Sm,Zr)Fe sub 3 alloys

Journal Article · Mon Apr 15 04:00:00 EDT 1991 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.348911· OSTI ID:5813753

Wecker, J; Katter, M; Schnitzke, K; Schultz, L ^[1]

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1. Siemens AG, Research Laboratory, Erlangen, Federal Republic of Germany (DE)

The hard magnetic properties of Sm{sub 27{minus}{ital x}}Zr{sub {ital x}}Fe{sub 73} alloys, having (Sm,Zr)Fe{sub 3} as the main phase (PuNi{sub 3} crystal structure), are investigated for 0 {le}{ital x}{le} 19. The easy magnetization direction is always directed along the {ital c}-axis up to the Curie temperature of about 385 {degree}C. The anisotropy field, determined by the singular point detection (SPD) method, is found to be 14 T at room temperature for {ital x}{lt}7. Highly coercive samples are prepared by mechanical alloying or rapid quenching, respectively. Binary SmFe{sub 3} shows a coercivity, {ital H}{sub {ital ci}}, of 8.5 kA/cm and a remanence, {ital J}{sub {ital r}}, of 0.43 T. Maximum coercivity, {ital H}{sub {ital ci}}=10.8 kA/cm ({ital J}{sub {ital r}}=0.43 T), is measured for mechanically alloyed Sm{sub 20}Zr{sub 10}Fe{sub 70}. For a higher Zr content the coercivity decreases like the anisotropy field whereas the remanence can be improved up to 0.53 T.

• OSTI ID: 5813753
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 69:8; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ANISOTROPY
COERCIVE FORCE
CURIE POINT
HARDENING
IRON ALLOYS
MAGNETIC PROPERTIES
MAGNETIZATION
MEDIUM TEMPERATURE
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
SAMARIUM ALLOYS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
ZIRCONIUM ALLOYS