DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Thermodynamics of SmCo5 compound doped with Fe and Ni: An ab initio study

Journal Article · · Journal of Alloys and Compounds
ORCiD logo [1];  [1];  [2];  [1];  [1];  [1];  [1];  [3];  [3];  [4]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Ames Lab., Ames, IA (United States)
  4. Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States). Dept. of Materials Science and Engineering

SmCo5 permanent magnets exhibit enormous uniaxial magnetocrystalline anisotropy energy and have a high Curie temperature. Furthermore, their low energy product is a significant deficiency. In this paper, to increase the energy product in SmCo5, we propose substituting cobalt with iron, that has a much larger magnetic moment, in a SmCoNiFe3 magnet where nickel is used as a thermodynamic stabilizer.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Ames Laboratory (AMES), Ames, IA (United States); Iowa State Univ., Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office; USDOE
Grant/Contract Number:
AC52-07NA27344; AC05-00OR22725; AC02-07CH11358
OSTI ID:
1465276
Alternate ID(s):
OSTI ID: 1478230; OSTI ID: 1545166
Report Number(s):
LLNL-JRNL-743621; IS-J-9780; 898616
Journal Information:
Journal of Alloys and Compounds, Vol. 765; ISSN 0925-8388
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 23 works
Citation information provided by
Web of Science

References (27)

New developments in hard magnetic materials journal September 1991
Hard Magnetic Materials: A Perspective journal December 2011
Permanent magnets: Plugging the gap journal September 2012
Magnetic Materials and Devices for the 21st Century: Stronger, Lighter, and More Energy Efficient journal December 2010
Prospects for Non-Rare Earth Permanent Magnets for Traction Motors and Generators journal June 2012
Formation and magnetic properties of metastable (TM)5Sm and (TM)7Sm2 (TM = Fe,Co) compounds journal November 1988
Formation of metastable compounds and magnetic properties in rapidly quenched (Fe 1− x Co x ) 5 Sm and (Fe 1− x Co x ) 7 Sm 2 alloy systems journal November 1988
Easy directions of magnetization in ternary R2(Co, Fe)17phases journal September 1972
Magnetic properties of SmCo5 and YCo5 journal May 2003
Magnetic Moments in SmCo5 and SmCo5−x Cu x Films journal April 2012
Magneto-elastic lattice collapse in YCo5 journal July 2006
Thermal expansion and spontaneous magnetostriction of RCo5 intermetallic compounds journal July 1991
The isothermal section phase diagram of the Sm-Fe-Ni ternary system at 800 °C journal March 2016
Neutron diffraction study of the Th(Co1-xFex)5alloys journal September 1973
Magnetic moments and exchange interaction in Sm(Co,Fe)5 from first-principles journal January 2011
Magnetic properties of R ions in R Co 5 compounds ( R =Pr, Nd, Sm, Gd, Tb, Dy, Ho, and Er) journal April 1991
RETM 5 and RE 2 TM 1 7 permanent magnets development journal March 1988
3d-5d band magnetism in rare earth transition metal intermetallics: LuFe 2 journal August 1989
Meta-magnetism in UCoAl journal June 1989
Theoretical aspects of the magnetism in the ferromagnetic A Fe 2 systems ( A =U, Np, Pu, and Am) journal May 1990
Ground-state properties of rare-earth metals: an evaluation of density-functional theory journal September 2014
NMR investigation of Co magnetic anisotropy in RCo5 compounds journal March 1978
Individual Co site contributions to the magnetic anisotropy of R Co 5 compounds and related structures journal March 1979
Calculation of orbital magnetism and magnetocrystalline anisotropy energy in YCo 5 journal March 1992
Itinerant-electron magnetocrystalline anisotropy energy of YCo 5 and related compounds journal April 2001
Charge self-consistent dynamical mean-field theory based on the full-potential linear muffin-tin orbital method: Methodology and applications journal April 2012
Prediction of the new efficient permanent magnet SmCoNiFe 3 journal September 2017

Cited By (2)

Anisotropy and orbital moment in Sm-Co permanent magnets journal July 2019
Low-cost Sm0.7Y0.3Co5 sintered magnet produced by traditional powder metallurgical techniques journal April 2019

Figures / Tables (14)