Magnetic Induction Effect of Rare-Earth La Modified FeSiB Amorphous Ribbon

2011 ◽  
Vol 415-417 ◽  
pp. 566-570 ◽  
Author(s):  
Guo Tai Zheng ◽  
Da Guo Jiang
Keyword(s):  
Rare Earth ◽  
Magnetic Induction ◽  
Amorphous Ribbon ◽  
Induction Effect ◽  
Rare Earth La

Investigated AC frequency and the number of coil turns as well as their influence on the magnetic induction effect of rare-earth La modified FeSiB amorphous ribbon. The results show that the magnetic induction effect is increased with the increase of AC frequency and the number of coil turns, and changing amplitude of magnetic induction effect shows first increased and then decreased with increasing frequency and coil turns.

Magnetic Induction Effect of Amorphous Ribbon Modified by Rare-Earth

2010 ◽  
Vol 152-153 ◽  
pp. 587-591 ◽  
Author(s):  
Da Guo Jiang
Keyword(s):  
Magnetic Field ◽  
Rare Earth ◽  
Amorphous Alloy ◽  
Magnetic Induction ◽  
Amorphous Ribbon ◽  
Induction Effect ◽  
Temperature Influence ◽  
Rare Earth La ◽  
The Magnetic Field ◽  
Rare Earth Content

Prepared rare-earth La modified amorphous ribbon by doping Rare-earth La in Fe78Si9B13 amorphous alloy. Investigated rare-earth content and temperature, as well as their influence on the magnetic induction effect and it’s amplitude. The results show that, when magnetic field is less than 1356 A / m, with the increase of Rare-earth content ,the magnetic induction effect first increased and then decreased, when the magnetic field strength greater than 1356 A / m, the Rare-earth content influence little on magnetic induction effect , changing amplitude of magnetic induction effect shows first increased and then decreased with increasing Rare-earth content; temperature influence little on the magnitude of magnetic induction effect.

Study on the Magnetic Induction Effect of Rare-Earth La Modified Amorphous Ribbons

2011 ◽  
Vol 415-417 ◽  
pp. 527-531
Author(s):  
Da Guo Jiang ◽  
Cao Bing Yang ◽  
Guo Tai Zheng
Keyword(s):  
Magnetic Field ◽  
Rare Earth ◽  
Magnetic Induction ◽  
Annealing Temperature ◽  
Amorphous Ribbon ◽  
Induction Effect ◽  
Amorphous Ribbons ◽  
Rare Earth La ◽  
The Magnetic Field ◽  
Rare Earth Content

Prepared rare-earth La modified amorphous ribbon by doping Rare-earth La in Fe78Si9B13amorphous alloy. Investigated rare-earth content and annealing temperature as well as their influence on the magnetic induction effect and its amplitude. The results show that, when magnetic field is less than 1356 A/m, with the increase of Rare-earth content,the magnetic induction effect first increased and then decreased, when the magnetic field strength greater than 1356 A/m, the Rare-earth content influence little on magnetic induction effect, changing amplitude of magnetic induction effect shows first increased and then decreased with increasing Rare-earth content.

scholarly journals Entropy Generation Analysis and Radiated Heat Transfer in MHD (Al2O3-Cu/Water) Hybrid Nanofluid Flow

Micromachines ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 887
Author(s):  
Nabeela Parveen ◽  
Muhammad Awais ◽  
Saeed Ehsan Awan ◽  
Wasim Ullah Khan ◽  
Yigang He ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Entropy Generation ◽  
Magnetic Induction ◽  
Axisymmetric Flow ◽  
Computational Method ◽  
Stability And Convergence ◽  
Hybrid Nanofluid ◽  
Physical Factors ◽  
Induction Effect ◽  
Entropy Generation Number

This research concerns the heat transfer and entropy generation analysis in the MHD axisymmetric flow of Al2O3-Cu/H2O hybrid nanofluid. The magnetic induction effect is considered for large magnetic Reynolds number. The influences of thermal radiations, viscous dissipation and convective temperature conditions over flow are studied. The problem is modeled using boundary layer theory, Maxwell’s equations and Fourier’s conduction law along with defined physical factors. Similarity transformations are utilized for model simplification which is analytically solved with the homotopy analysis method. The h-curves upto 20th order for solutions establishes the stability and convergence of the adopted computational method. Rheological impacts of involved parameters on flow variables and entropy generation number are demonstrated via graphs and tables. The study reveals that entropy in system of hybrid nanofluid affected by magnetic induction declines for [...]

Enhancing electrocatalytic nitrogen reduction to ammonia with rare earth (La, Y, Sc) on high-index faceted platinum alloy concave nanocubes

2021 ◽  
Author(s):  
Yu-Jie Mao ◽  
Feng Liu ◽  
You-Hu Chen ◽  
Xin Jiang ◽  
Xinsheng Zhao ◽  
...  
Keyword(s):  
Rare Earth ◽  
Surface Structure ◽  
Catalyst Surface ◽  
High Index ◽  
Structure Effect ◽  
Structure Dependence ◽  
Nitrogen Reduction ◽  
Platinum Alloy ◽  
Atomic Arrangement ◽  
Rare Earth La

Surface structure effect is the key subject in electrocatalysis, and consists of the structure dependence of interaction between reaction molecules and catalyst surface in specifying the surface atomic arrangement, chemical...

Optimal rare-earth (La, Y and Sm) doping conditions and enhanced mechanism for photocatalytic application of ceria nanorods

2021 ◽  
Vol 32 (19) ◽  
pp. 195708
Author(s):  
Xuewen Xia ◽  
Junqi Li ◽  
Chaoyi Chen ◽  
Yuan-Pei Lan ◽  
Xisong Mao ◽  
...  
Keyword(s):  
Rare Earth ◽  
Photocatalytic Application ◽  
Rare Earth La

THE STUDY OF HIGH DIELECTRIC CONSTANT MECHANISM OF La-DOPED Ba0.67Sr0.33TiO3 CERAMICS

2018 ◽  
Vol 25 (02) ◽  
pp. 1850056
Author(s):  
JING XU ◽  
BO HE ◽  
HAN XING LIU
Keyword(s):  
Dielectric Constant ◽  
Rare Earth ◽  
High Dielectric Constant ◽  
Temperature Stability ◽  
Current Voltage ◽  
Microstructure Model ◽  
Bst Ceramics ◽  
High Dielectric ◽  
Rare Earth La ◽  
La Doped

It is a common and effective method to enhance the dielectric properties of BST ceramics by adding rare-earth elements. In this paper, it is important to analyze the cause of the high dielectric constant behavior of La-doped BST ceramics. The results show that proper rare earth La dopant ([Formula: see text]) may greatly increase the dielectric constant of BST ceramics, and also improve the temperature stability, evidently. According to the current–voltage ([Formula: see text]–[Formula: see text]) characteristics, the proper La-doped BST ceramics may reach the better semiconductivity, with the decrease and increase in La doping, the ceramics are insulators. By using the Schottky barrier model and electric microstructure model to find the surface or grain boundary potential barrier height, the width of the depletion layer and grain size do play an important role in impacting the dielectric constant.

Electrical and Raman Spectroscopic Studies on Aurivillius Layered-Pervoskite Ceramics

2019 ◽  
Vol 1154 ◽  
pp. 80-90
Author(s):  
Mohammed Abdul Basheer ◽  
Vagmare Gangadhar ◽  
Guduru Prasad ◽  
Gobburu Subramanya Kumar ◽  
Nandi Venkata Prasad
Keyword(s):  
Rare Earth ◽  
Complex Impedance ◽  
Spectroscopic Properties ◽  
Spectroscopic Studies ◽  
Rare Earth Ions ◽  
X Ray Diffraction ◽  
Raman Spectroscopic ◽  
Solid State Route ◽  
A Site ◽  
Rare Earth La

Double rare-earth (La; Sm/Gd) substituted Aurivillius family of Bismuth Layered Structured Ferroelectrics (BLSF) namely Bi2.6Sm0.2La0.2TiNbO9 (BSLT; sample-A), Bi2.6Gd0.2La0.2TiNbO9 (BGLT; sample-B), single phase ceramics were prepared by solid state route. In addition, intergrowth (x BSLT - (1-x) BGLT, where x=0.49; sample-C) and solid solution (BSLT­x - BGLTy; where x + y=0.4; sample-D) materials were prepared. Dielectric, ferroelectric and Raman spectroscopic properties were studied on the said above materials. The X-ray diffraction analysis and Raman spectra revealed well-formation of stable structure. Though, the sample-C and sample-D have lower coercive field, compared to the sample-A and sample-B, but they exhibited sharp hysterisis loop. Therefore the instrinsic defects of sample-D inhabits more sensitivity towards the ferroelectric behaviour. The results were corroborated to the impedance and dielectrical data. The results were consistent with the SEM micrographs and complex impedance plots. An attempt is made to understand the effect of rare-earth ions on A-site of layered-pervoskite structure, defined as: (Bi2O2)2+(An-1BnO3n+1)2-.The term n represents number of pervoskite blocks interleaved with the bismuth oxide layers.

Study on the Corrosion Resistance of Magnesium Alloy AZ81 with Rare Earth

2011 ◽  
Vol 686 ◽  
pp. 332-336 ◽  
Author(s):  
Yu Cai Wu ◽  
Rui He ◽  
Lei Li
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Rare Earth ◽  
Treatment Process ◽  
Heat Treatment Process ◽  
T6 Heat Treatment ◽  
Treatment Procedures ◽  
Different Content ◽  
Human Fluid ◽  
Rare Earth La

The influences of the different content of Rare earth La on the corrosion resistance of AZ81 in the simulated human fluid were studied. In order to further improve the corrosion resistance, different heat treatment procedures were studied. Results showed that with the increase of content of rare earth La, the grain size was refined and the corrosion resistance increased. The corrosion resistance was improved after T6 heat treatment (solid solution+ aging). Microstructure analysis showed that β-phases were precipitated in the T6 heat treatment process. Those fine β phases acted as corrosion barrier and impeded the corrosion extending.

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