scholarly journals Spark Plasma Sintered NdFeB-based Nanocomposite Hard Magnets with Enhanced Magnetic Properties

10.5772/15459 ◽  
2011 ◽  
Author(s):  
N. Lupu ◽  
M. Grigoras ◽  
M. Lostun ◽  
H. Chiriac
Keyword(s):  
Magnetic Properties ◽  
Spark Plasma ◽  
Hard Magnets

ChemInform Abstract: Spark Plasma Sintered NdFeB-Based Nanocomposite Hard Magnets with Enhanced Magnetic Properties

ChemInform ◽  
2013 ◽  
Vol 44 (38) ◽  
pp. no-no
Author(s):  
N. Lupu ◽  
M. Grigoras ◽  
M. Lostun ◽  
H. Chiriac
Keyword(s):  
Magnetic Properties ◽  
Spark Plasma ◽  
Hard Magnets

Formation and magnetic properties of spark plasma sintered Mn3−Ga (δ = 0, 1) Heusler alloys: Experiment and theory

2021 ◽  
Vol 154 ◽  
pp. 110050 ◽  
Author(s):  
Sonam Perween ◽  
A. Rathi ◽  
Parul Rani Raghuvanshi ◽  
Amrita Bhattacharya ◽  
P.V. PrakashMadduri ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Heusler Alloys ◽  
Spark Plasma

Interaction mechanism, magnetic properties and microstructure of Ce-Fe-B/Alnico spark plasma sintered magnets

2021 ◽  
pp. 168237
Author(s):  
Sajjad Ur Rehman ◽  
Qingfang Huang ◽  
Rizwan Ur Rehman Sagar ◽  
Qingzheng Jiang ◽  
Munan Yang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Interaction Mechanism ◽  
Sintered Magnets ◽  
Spark Plasma

Fabrication of large-size Fe-based glassy cores with good soft magnetic properties by spark plasma sintering

2003 ◽  
Vol 18 (9) ◽  
pp. 2115-2121 ◽  
Author(s):  
Baolong Shen ◽  
Akihisa Inoue
Keyword(s):  
Magnetic Properties ◽  
Supercooled Liquid ◽  
Supercooled Liquid Region ◽  
Liquid Region ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
Large Size ◽  
High Relative Density ◽  
Plasma Sintering ◽  
Spark Plasma

Glassy Fe65Co10Ga5P12C4B4 alloy powders with a large supercooled liquid region of 50 K before crystallization were synthesized in the particle size range below 125 μm by Ar gas atomization. With the aim of developing a large-size Fe-based glassy core with good soft magnetic properties, the consolidation method of spark plasma sintering was applied to the Fe65Co10Ga5P12C4B4 glassy powders. The existence of the supercooled liquid region enabled us to form a large-size glassy alloy disc 20 mm in diameter and 5 mm in thickness with a high relative density of 99.7% at the glass-transition temperature of 723 K and under the external applied pressure of 300 MPa. The resulting glassy core of 18 mm in outer diameter, 10 mm in inner diameter, and 4 mm in thickness exhibits good soft magnetic properties: 1.20 T for saturation magnetization, 6 A/m for coercive force, and 8900 for maximum permeability. The good soft magnetic properties of the Fe-based bulk glassy core are attributed to the combination of the high relative density and the maintenance of the single glassy structure.

Microstructure and Magnetic Properties of Hot-Pressed and Hot-Deformed Composite Magnets Produced by Spark Plasma Sintering Method

2011 ◽  
Vol 686 ◽  
pp. 740-744 ◽  
Author(s):  
Yi Long Ma ◽  
Deng Ming Chen ◽  
Qian Shen ◽  
Peng Jun Cao
Keyword(s):  
Magnetic Properties ◽  
Spark Plasma Sintering ◽  
Hot Pressing ◽  
Magnetic Energy ◽  
Pressing Temperature ◽  
Energy Product ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Energy Products ◽  
Fe Addition

Bulk isotropic and anisotropic Nd13.5Fe80.4Ga0.5B5.6 and Nd13.5Fe80.4Ga0.5B5.6/Fe magnets were synthesized by applying spark plasma sintering (SPS) technique. The effect of hot-pressing temperature on the magnetic properties of hot-pressed (HP) and hot-deformed (HD) magnets without additive and with 5% Fe addition was investigated. With increasing sintering temperature for HP magnets, the grain grew gradually. For HD magnets, the optimal magnetic properties could be obtained at hot-pressing temperature 680°C due to the development of desired c-axis texture and uniform microstructure, which resulted from the appropriate and uniform grain size in HP magnets. Fe addition could enhance remanence (Br) and magnetic energy products ((BH)m) of HP and HD magnets. However, the maximum magnetic energy product of HD magnets decreased when hot-pressing temperature was higher than 650°C.

scholarly journals Consolidation of Fe-Co-Nd-Dy-B Glassy Powders by Spark-Plasma Sintering and Magnetic Properties of the Consolidated Alloys

2003 ◽  
Vol 44 (1) ◽  
pp. 138-143 ◽  
Author(s):  
Satoru Ishihara ◽  
Wei Zhang ◽  
Hisamichi Kimura ◽  
Mamoru Omori ◽  
Akihisa Inoue
Keyword(s):  
Magnetic Properties ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Magnetic properties of ball-milled SrFe12O19 particles consolidated by Spark-Plasma Sintering

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Marian Stingaciu ◽  
Martin Topole ◽  
Paul McGuiness ◽  
Mogens Christensen
Keyword(s):  
Magnetic Properties ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma
Sign in / Sign up

Export Citation Format

Share Document