ChemInform Abstract: Preparation, Crystal Structure, and Magnetic Properties of Rare Earth Ruthenium and Osmium Carbides with La3.67FeC6 Type Structure.

ChemInform ◽  
2001 ◽  
Vol 32 (19) ◽  
pp. no-no
Author(s):  
Marc W. Pohlkamp ◽  
Gunter Kotzyba ◽  
Udo A. Boecker ◽  
Martin H. Gerdes ◽  
Klaus H. Wachtmann ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Rare Earth ◽  
Type Structure

scholarly journals Effect of Nd, Pr substitutional atoms on the magnetic and magnetostrictive properties in (Tb-Dy)(Fe-Co)2 Laves phases

2021 ◽  
Vol 2103 (1) ◽  
pp. 012196
Author(s):  
G A Politova ◽  
M A Ganin ◽  
A B Mikhailova ◽  
D A Morozov ◽  
K E Pankov ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Laves Phase ◽  
Type Structure ◽  
Partial Substitution ◽  
Laves Phases ◽  
Temperature Range ◽  
Homogenizing Annealing ◽  
Arc Melting ◽  
Magnetostrictive Materials

Abstract Polycrystalline TbxDy1-xR0.1Fe2-zCoz (R = Nd, Pr, x = 0.2, 0.3; z = 0, 1.3) cubic Laves phase alloys with MgCu2-type structure were prepared by arc melting followed by homogenizing annealing. The crystal structure, magnetic properties, and magnetostriction have been investigated. Compounds with high values of magnetostrictive susceptibility were found in the temperature range 150-300 K. Compounds with partial substitution of cobalt for iron demonstrate a change in the sign of anisotropic magnetostriction. This work continues the search for magnetostrictive materials with inexpensive neodymium and praseodymium.

scholarly journals Darstellung und Struktur ternärer Silizide und Germanide des Lithiums mit den Seltenen Erden Y und Gd im Fe2P-Typ / Preparation and Crystal Structure of Ternary Silicides and Germanides of Lithium with the Rare-Earth-Metals Y and Gd in the Fe2P-Type Structure

1979 ◽  
Vol 34 (8) ◽  
pp. 1057-1058 ◽  
Author(s):  
Axel Czybulka ◽  
Günter Steinberg ◽  
Hans-Uwe Schuster
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Crystal Structures ◽  
Rare Earth Metals ◽  
Type Structure ◽  
Space Group ◽  
X Ray ◽  
P Type ◽  
Type Lattice ◽  
The Rare Earth

In the systems Li-M-X = (M = Y, Gd; X = Si, Ge) the compounds LiYSi, LiYGe and LiGdGe were prepared. Their crystal structures were determined by X-ray investigations. They crystallize hexagonally (space group P 6̄2m), and a C22-(Fe2P-type) lattice was found

NEW INTERMETALLIC COMPOUNDS IN THE TERNARY SYSTEM Yb-T-Al (T=Ag, Au, Pd, Pt)

1993 ◽  
Vol 07 (01n03) ◽  
pp. 391-394 ◽  
Author(s):  
G. CORDIER ◽  
R. HENSELEIT
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Transition Metal ◽  
Ternary System ◽  
Crystal Structures ◽  
Intermetallic Compounds ◽  
Structural Characteristics ◽  
Type Structure ◽  
Structural Elements ◽  
New Compounds

Structural characteristics of a number of ternary rare earth/transition metal/aluminium compounds are hexagonal nets of the AlB 2-type, Kagomé nets and tetragonal pyramides. Crystal structures of the new compounds in the ternary Yb-T-Al systems contain units and sections of them. Kagomé nets stacked in an ..ABAB.. sequence are observed in YbAg1.5Al0.5 ( MgZn 2-type). The crystal structure of Yb8Ag21Al45 is related to the BaHg 11-type. YbAu0.8Al3.2 ( CaZn 2 Al 2-type) contains tetragonal pyramides which are connected by common edges. Fragments of the AlB 2- and BaAl 4-type structure are present in Yb5Au15Al16. YbPdAl2 and YbPtAl2 ( YbPdAl 2-type) contain pentagonal prisms as the characteristic structural elements.

Microstructure and Magnetic Properties of RE2.28Fe13.58B1.14 Alloys

2016 ◽  
Vol 848 ◽  
pp. 709-714 ◽  
Author(s):  
Gang Fu ◽  
Jiang Wang ◽  
Mao Hua Rong ◽  
Guang Hui Rao ◽  
Huai Ying Zhou
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Rare Earth ◽  
Single Phase ◽  
Permanent Magnets ◽  
Industrial Applications ◽  
Arc Melting ◽  
Light Rare Earth Elements ◽  
Curie Temperatures ◽  
Microstructure And Magnetic Properties

The rare-earth (RE) permanent magnets based on Nd2Fe14B with excellent magnetic properties have been widely used in industrial applications. In this work, the crystal structure, microstructure and magnetic properties of Nd2.28Fe13.58B1.14, Ce2.28Fe13.58B1.14 and Pr2.28Fe13.58B1.14 alloys prepared by arc-melting were investigated. The results show that all alloys are single phase with tetragonal Nd2Fe14B-type (space group P42/mnm). The Curie temperatures (Tc) of RE2.28Fe13.58B1.14 (RE=Nd, Ce, Pr) alloys are 583 K, 423 K and 557 K, respectively. On the other hand, the coercivities of Nd2.28Fe13.58B1.14 and Pr2.28Fe13.58B1.14 alloys are about 1.05 T and 1.23 T, respectively, while that of Ce2.28Fe13.58B1.14 alloy is only about 0.25 T due to the poor squareness of hysteresis loop. Meanwhile, the saturation magnetizations of Nd2.28Fe13.58B1.14 and Pr2.28Fe13.58B1.14 alloys are about 135 emu/g and 113 emu/g, respectively, while that of Ce2.28Fe13.58B1.14 alloy is about 97 emu/g. It was indicated that the Curie temperatures and magnetic properties of RE2.28Fe13.58B1.14 alloys with the same crystal structure are dependent on light rare earth elements.

Effects of cerium substitution on magnetic properties of naturally layered TbMn6Sn6 compound

2016 ◽  
Vol 30 (11) ◽  
pp. 1650068 ◽  
Author(s):  
X. X. Chen ◽  
M. Zhao ◽  
G. Z. Liu ◽  
J. L. Yao ◽  
J. Gao
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Magnetocrystalline Anisotropy ◽  
Type Structure ◽  
Spin Orientation ◽  
Structure Space ◽  
Ce Substitution ◽  
Anisotropy Model ◽  
Hard Magnetic Properties

The Tb[Formula: see text]Ce[Formula: see text]Mn6Sn6 compounds with [Formula: see text] crystallize in the hexagonal HfFe6Ge6-type structure (space group [Formula: see text]). The cerium (Ce) substitution for Tb increases the magnetization while reduces the Curie and spin-orientation temperatures. The hard magnetic properties are enhanced by the Ce substitution, e.g., from a coercivity of [Formula: see text] kOe for TbMn6Sn6 to [Formula: see text] kOe for the Ce-substituted compounds with [Formula: see text] at 5 K. The role of Ce substitution in the magnetocrystalline anisotropy is discussed based on the single-ion anisotropy model. The substitution of Ce for critical rare-earth atoms provides an opportunity of improving hard magnetic properties of the rare-earth-based intermetallics.

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