Effect of (Sm,Pr)2Co7 phase on magnetic properties of high-performance (Sm,Pr)Co5 magnet based on EBSD analysis and magnetic domain observation

2021 ◽  
Vol 181 ◽  
pp. 111478
Author(s):  
Jianjun Yang ◽  
Dongtao Zhang ◽  
Rongchun Zhu ◽  
Xiaochang Xu ◽  
Dan Wu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
High Performance ◽  
Magnetic Domain ◽  
Ebsd Analysis

Effect of Annealing on the Microstructure and Magnetic Properties of 2J4 Alloy

2016 ◽  
Vol 852 ◽  
pp. 84-89
Author(s):  
Chun Hong Li ◽  
Deng Ming Chen ◽  
Si Huang ◽  
Yi Long Ma ◽  
Jian Chun Sun ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Saturation Magnetization ◽  
High Performance ◽  
Magnetic Energy ◽  
Domain Boundary ◽  
Magnetic Domain ◽  
Microstructural Characterization ◽  
Energy Product ◽  
Increasing Temperature ◽  
Precipitated Phases

The effect of annealing on the microstructural characterization and magnetic properties of 2J4 alloy has been investigated.The alloys were annealed in argon atmosphere for 0.5h at different temperatures.The results indicated that there were some precipitated phases afer annealing,which can pin domain boundary movement, thus leading to improved magnetic energy product and hysteresis properties due to enhanced coercivity and remanence. Magnetic domain morphology showed that the number of domains increased after heat treatment, the exchange energy between magnetic domains and the energy of magnetocrystalline anisotropy increased with increasing domain number,thus leading to better coercivity. With increasing temperature from 620°C to 680°C, saturation magnetization increased at first, and then decreased under the effect of increase in precipitates and decrease in strain and dislocations. The coercivity,hysteresis loss and ratio of the remanence to saturation magnetization keeped increasing due to increase of tiny and dispersed precipitates. This study can provide theoretically a reliable way for preparing 2J4 magnetic alloys with high performance.

scholarly journals Magnetic properties of (Bi1−xLax)(Fe,Co)O3 films fabricated by a pulsed DC reactive sputtering and demonstration of magnetization reversal by electric field

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Munusamy Kuppan ◽  
Daichi Yamamoto ◽  
Genta Egawa ◽  
Sivaperuman Kalainathan ◽  
Satoru Yoshimura
Keyword(s):  
Electric Field ◽  
Magnetization Reversal ◽  
High Performance ◽  
Magnetic Domain ◽  
Magnetic Film ◽  
Film Plane ◽  
Force Microscopy ◽  
Domain Structures ◽  
Pulsed Dc ◽  
Submicron Scale

Abstract(Bi1−xLax)(Fe,Co)O3 multiferroic magnetic film were fabricated using pulsed DC (direct current) sputtering technique and demonstrated magnetization reversal by applied electric field. The fabricated (Bi0.41La0.59)(Fe0.75Co0.25)O3 films exhibited hysteresis curves of both ferromagnetic and ferroelectric behavior. The saturated magnetization (Ms) of the multiferroic film was about 70 emu/cm3. The squareness (S) (= remanent magnetization (Mr)/Ms) and coercivity (Hc) of perpendicular to film plane are 0.64 and 4.2 kOe which are larger compared with films in parallel to film plane of 0.5 and 2.5 kOe. The electric and magnetic domain structures of the (Bi0.41La0.59)(Fe0.75Co0.25)O3 film analyzed by electric force microscopy (EFM) and magnetic force microscopy (MFM) were clearly induced with submicron scale by applying a local electric field. This magnetization reversal indicates the future realization of high performance magnetic device with low power consumption.

Magnetic Domain Structures and Magnetic Properties of Lightly Nd-Doped Sm–Co Magnets With High Squareness and High Heat Resistance

2019 ◽  
Vol 55 (2) ◽  
pp. 1-4 ◽  
Author(s):  
Hiroaki Machida ◽  
Teruhiko Fujiwara ◽  
Chieko Fujimoto ◽  
Yu Kanamori ◽  
Jun Tanaka ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Heat Resistance ◽  
Magnetic Domain ◽  
High Heat ◽  
High Heat Resistance ◽  
Domain Structures

Tetranuclear cobalt(ii)–isonicotinic acid frameworks: selective CO2capture, magnetic properties, and derived “Co3O4” exhibiting high performance in lithium ion batteries

2019 ◽  
Vol 48 (1) ◽  
pp. 296-303 ◽  
Author(s):  
Lei Zhou ◽  
Honghong Fan ◽  
Baolei Zhou ◽  
Zheng Cui ◽  
Bowen Qin ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Isonicotinic Acid ◽  
Lithium Ion ◽  
Excellent Performance ◽  
Porous Framework

A CoIIporous framework exhibits high CO2selectivity, and the prepared Co3O4-anode from the framework shows excellent performance in lithium ion batteries.

Synthesis and Characterization of BiFeO3 Ceramic by Simple and Novel Methods

2016 ◽  
Vol 35 (6) ◽  
pp. 551-557 ◽  
Author(s):  
Omid Amiri ◽  
Mohammad Reza Mozdianfar ◽  
Mahmoud Vahid ◽  
Masoud Salavati-Niasari ◽  
Sousan Gholamrezaei
Keyword(s):  
Magnetic Properties ◽  
Domain Walls ◽  
Magnetic Domain ◽  
X Ray Diffraction ◽  
X Ray ◽  
Size Dependent ◽  
Magnetic Domain Walls ◽  
Magnetization Orientation ◽  
Thermal Stability Of

AbstractBiFeO3 nanopowders with new morphology have been synthesized by different methods. X-ray diffraction analysis, scanning electron microscopy, Fourier transform infrared and vibrating sample magnetometer were carried out at room temperature to study the structural and magnetic properties of as-synthesized products. VSM was utilized to measure the size-dependent magnetic behaviors of the as-prepared nanoparticles. Results show that the method has strong effect on the purity of the products. BFO synthesized by third method was pure. Crystallite size has a great effect on the magnetic properties. According to these results the nanoparticle diameter is smaller than the critical single-domain diameter, avoiding the configuration of magnetic domain walls decreases the magnetization. Even though the diameter of particle becomes even smaller, the thermal stability of the magnetization orientation decreases.

Magnetic properties and magnetic domain structures of NdFe10.5Mo1.5 and NdFe10.5Mo1.5Nx

1997 ◽  
Vol 71 (22) ◽  
pp. 3290-3292 ◽  
Author(s):  
Jinbo Yang ◽  
Weihua Mao ◽  
Benpei Cheng ◽  
Yingchang Yang ◽  
Hai Xu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Domain ◽  
Domain Structures

Structure evolution, magnetic domain structures and magnetic properties of CoPt–C nanocomposite films

2004 ◽  
Vol 351 (1-2) ◽  
pp. 77-82 ◽  
Author(s):  
Hao Wang ◽  
Fujun Yang ◽  
Mingzhe Hu ◽  
Bin Zhou ◽  
Haoshuang Gu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Domain ◽  
Nanocomposite Films ◽  
Structure Evolution ◽  
Domain Structures
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