Direct Synthesis of L10-FePt Nanoparticles with High Coercivity via Pb Addition for Applications in Permanent Magnets and Catalysts

2020 ◽  
Vol 3 (2) ◽  
pp. 1098-1103 ◽  
Author(s):  
Wenli Pei ◽  
Dong Zhao ◽  
Chun Wu ◽  
Zhimeng Sun ◽  
Chunhong Liu ◽  
...  
Keyword(s):  
Permanent Magnets ◽  
Direct Synthesis ◽  
High Coercivity ◽  
Fept Nanoparticles

Structure and Magnetic Properties of Heat-Resistant Sm(Co0.796−xFe0.177CuxZr0.027)6.63 Permanent Magnets with High Coercivity

JOM ◽  
2018 ◽  
Vol 71 (2) ◽  
pp. 559-566 ◽  
Author(s):  
A. G. Popov ◽  
V. S. Gaviko ◽  
V. V. Popov ◽  
O. A. Golovnia ◽  
A. V. Protasov ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Permanent Magnets ◽  
High Coercivity ◽  
Heat Resistant

A DETERMINATION OF THE SHEAR FORCE OF THIN HIGH-COERCIVITY PERMANENT MAGNETS MADE FROM THE ALLOY WITH RARE-EARTH ELEMENTS

2021 ◽  
pp. 24-30
Author(s):  
A. Ya. Krasilʼnikov ◽  
A. A. Krasilʼnikov
Keyword(s):  
Rare Earth ◽  
Magnetic Flux ◽  
Rare Earth Elements ◽  
Standard Method ◽  
Shear Force ◽  
Permanent Magnets ◽  
High Coercivity ◽  
Research Results ◽  
Magnetic Couplings

The article considers the possibility of using a standard method for calculating the shear force of thin, high-coercivity neodymium–iron–boron type permanent magnets in magnetic clutches (couplings). The research results allowed to introduce a correction coefficients in the method of calculating the transmitting torque in magnetic clutches (couplings) with thin magnets. The possibility of 08H22N6T brand steel using for magnetic flux conductors manufacturing in a magnetic couplings.

scholarly journals Structure of Alloys for (Sm,Zr)(Co,Cu,Fe)Z Permanent Magnets: First Level of Heterogeneity

Materials ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 3893 ◽  
Author(s):  
Andrey G. Dormidontov ◽  
Natalia B. Kolchugina ◽  
Nikolay A. Dormidontov ◽  
Yury V. Milov
Keyword(s):  
Phase Composition ◽  
Quantitative Analysis ◽  
Chemical Composition ◽  
Permanent Magnets ◽  
Composition Range ◽  
Structural Phase ◽  
High Coercivity ◽  
Structural Components ◽  
Structural Formation ◽  
Hysteretic Properties

An original vision for the structural formation of (Sm,Zr)(Co,Cu,Fe)Z alloys, the compositions of which show promise for manufacturing high-coercivity permanent magnets, is reported. Foundations arising from the quantitative analysis of alloy microstructures as the first, coarse, level of heterogeneity are considered. The structure of the alloys, in optical resolutions, is shown to be characterized by three structural phase components, which are denoted as A, B, and C and based on the 1:5, 2:17, and 2:7 phases, respectively. As the chemical composition of alloys changes monotonically, the quantitative relationships of the components A, B, and C vary over wide ranges. In this case, the hysteretic properties of the (Sm,Zr)(Co,Cu,Fe)Z alloys in the high-coercivity state are strictly controlled by the volume fractions of the A and B structural components. Based on quantitative relationships of the A, B, and C structural components for the (R,Zr)(Co,Cu,Fe)Z alloys with R = Gd or Sm, sketches of quasi-ternary sections of the (Co,Cu,Fe)-R-Zr phase diagrams at temperatures of 1160–1190 °C and isopleths for the 2:17–2:7 phase composition range of the (Co,Cu,Fe)–Sm–Zr system were constructed.

Direct Synthesis and Size Selection of Ferromagnetic FePt Nanoparticles.

ChemInform ◽  
2007 ◽  
Vol 38 (32) ◽  
Author(s):  
Matthew S. Wellons ◽  
William H. III Morris ◽  
Zheng Gai ◽  
Jian Shen ◽  
James Bentley ◽  
...  
Keyword(s):  
Direct Synthesis ◽  
Fept Nanoparticles ◽  
Size Selection ◽  
Selection Of

scholarly journals Additive manufacturing of heavy rare earth free high-coercivity permanent magnets

2020 ◽  
Vol 188 ◽  
pp. 733-739 ◽  
Author(s):  
A.S. Volegov ◽  
S.V. Andreev ◽  
N.V. Selezneva ◽  
I.A. Ryzhikhin ◽  
N.V. Kudrevatykh ◽  
...  
Keyword(s):  
Rare Earth ◽  
Additive Manufacturing ◽  
Permanent Magnets ◽  
High Coercivity ◽  
Heavy Rare Earth

Towards direct synthesis of fct-FePt nanoparticles by chemical route

2003 ◽  
Vol 93 (10) ◽  
pp. 7574-7576 ◽  
Author(s):  
B. Jeyadevan ◽  
A. Hobo ◽  
K. Urakawa ◽  
C. N. Chinnasamy ◽  
K. Shinoda ◽  
...  
Keyword(s):  
Direct Synthesis ◽  
Fept Nanoparticles ◽  
Chemical Route

Direct synthesis of fct-structured FePt nanoparticles at low temperature with assistance of poly(N-vinyl-2-pyrrolidone)

2007 ◽  
Vol 308 (2) ◽  
pp. 564-567 ◽  
Author(s):  
Takashi Iwamoto ◽  
Kinya Matsumoto ◽  
Yoshitaka Kitamoto ◽  
Naoki Toshima
Keyword(s):  
Low Temperature ◽  
Direct Synthesis ◽  
Fept Nanoparticles
Sign in / Sign up

Export Citation Format

Share Document