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Result

Simulating the Hysteretic Characteristics of Hard Magnetic Materials Based on Nd2Fe14B and Ce2Fe14B Intermetallics

The Ce2Fe14B intermetallic, like Nd2Fe14B, has the tetragonal Nd2Fe14B-type of Nd2Fe14B and Pr2Fe14B, Ce2Fe14B retains the capacity of being able to be used field of Ce2Fe14B is higher than that of Nd2Fe14B, and Ce...

Materials engineering

  • 2020
  • Jimp
  • Link
Result

Role of terbium hydride additions in the formation of microstructure and magnetic properties of sintered Nd-Pr-Dy-Fe-B magnets

. An inhomogeneous distribution of Nd(Pr) and Tb(Dy) within hard magnetic Nd2Fe14B phase grains...

JG - Hutnictví, kovové materiály

  • 2013
  • Jx
  • Link
Result

Crystal field parameters with Wannier functions: application to Nd2Fe14B systems

A new method to calculate the crystal field parameters (CFPs) is first applied to crystalline Nd2Fe14B as the representative of rare-earth iron boron permanent magnets. The CFPs are extracted from the one electron Hamiltonian expressed in th...

BM - Fyzika pevných látek a magnetismus

  • 2015
  • Jx
  • Link
Result

An overstoichiometric Nd?Fe?B hard magnetic material

A commercial Nd-rich Nd?Fe?B-based hard magnetic material was studied. The thermomagnetic curve showed clearly besides Curie points of the Nd2Fe14B phase and ?-Fe also analysis (XRD) showed in addition to the commonly known phases Nd2Fe1...

BM - Fyzika pevných látek a magnetismus

  • 2010
  • Jx
Result

First-principles calculations of crystal field parameters of Nd ions near surfaces and interfaces in Nd-Fe-B magnets

We study the local magnetic anisotropy due to Nd ions located around surfaces of Nd2Fe14B within the crystal field theory based on first-principles calculations. The Nd ions on the (001) surface exhibit A02 < 0, that is, the in-plane anisotr...

BM - Fyzika pevných látek a magnetismus

  • 2014
  • Jx
  • Link
Result

Study of Nd-Fe-B Alloys with Nonstoichiometric Nd Content in Optimal Magnetic State

the nanocomposite structure of Fe3B/Nd2Fe14B and partly alpha-Fe/Nd2Fe14B, with mean grain size a monophase structure with the dominant content of the hard magnetic phase Nd2Fe14B (up......

BM - Fyzika pevných látek a magnetismus

  • 2009
  • Jx
Result

NdFeB permanent magnets with various Nd content

Three kinds of commercial Nd-Fe-B based materials were compared using Fe-57 Mossbauer spectroscopy and X-ray analysis: near the Nd2Fe14B stoichiometry and with both lowered and raised Nd content. Magnetically hard Nd2Fe14B is presen...

BM - Fyzika pevných látek a magnetismus

  • 2008
  • Jx
Result

Studying features of the structural state of high-coercivity (Nd, Pr, Dy, Tb)-Fe-B magnetic materials via Mössbauer spectroscopy

the substantial normalization of the population of iron atoms in the Nd2Fe14B crystal lattice...

JG - Hutnictví, kovové materiály

  • 2015
  • Jx
  • Link
Result

Structural, magnetic and magnetocaloric properties of NdPrFe14B and its hydrides

for Nd2Fe14B to 73 K for (Nd0.5Pr0.5)(2)Fe14B. Hydrides (Nd0.5Pr0.5)(2)Fe14BHx crystallize in a tetragonal crystal structure (space group P42/mnm) of the Nd2Fe14B-type. Both lattice......

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2019
  • D
  • Link
Result

The effect of hydrogen decrepitation process and heat treatment on magnetic properties and structure of sintered Nd-Fe-B magnets

on the amounts of absorbed hydrogen in Nd2Fe14B and an intergranular Nd-rich phases...

JG - Hutnictví, kovové materiály

  • 2011
  • D
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