Combined laser-magnetic field treatment of Y 3 Fe 5 O 12 films grown by spray pyrolysis from Y-Fe citric complex initial solutions

2001 ◽  
Author(s):  
Naiden I. Mihailov ◽  
Roumiana Todorovska ◽  
Stefka Groudeva-Zotova ◽  
Orlin I. Vankov ◽  
Chavdar Ghelev ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Spray Pyrolysis ◽  
Magnetic Field Treatment

scholarly journals Combined laser and magnetic field treatment of YFeO3—containing films grown by spray-pyrolysis

2004 ◽  
Vol 2 (1) ◽  
pp. 188-195
Author(s):  
N. Mihailov ◽  
O. Vankov ◽  
N. Petrova ◽  
D. Kovacheva
Keyword(s):  
Magnetic Field ◽  
Spray Pyrolysis ◽  
Pulse Duration ◽  
Fused Silica ◽  
Crystallite Sizes ◽  
Citric Complexes ◽  
Magnetic Field Treatment ◽  
Glycol Solution ◽  
The Magnetic Field ◽  
Post Deposition

AbstractThin films (50–1200 nm) of YFeO3 were deposited on fused silica substrates by spray-pyrolysis using ethylene glycol solution of Y-Fe(III) citric complexes. The films were post deposition annealed at 750°C in static air for 2 h. Films obtained in this way were afterwards irradiated by a burst mode operated Nd-YAG laser (pulse energy 650 mJ, pulse duration 700 μs, energy density 110 mJ/cm2). The laser’s onset was synchronized with that of a magnetic field pulse of nearly square shape (magnetic induction 0.5 T, pulse duration 900 μs). The samples were placed normally to the direction of the magnetic field. The treatment does not affect the phase composition of the film but significantly increases the crystallite sizes of the phases presenting in the sample. The saturation magnetization of the films decreases as a result of the laser and magnetic field treatment and the coercive force increases by 50%.

Improvement of the wear resistance of nickel-aluminium bronze and 2014-T6 aluminium alloy by application of alternating magnetic field treatment

Wear ◽  
2021 ◽  
pp. 203940
Author(s):  
Sufyan Akram ◽  
Anatolii Babutskyi ◽  
Andreas Chrysanthou ◽  
Diogo Montalvão ◽  
Mark J. Whiting ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Wear Resistance ◽  
Aluminium Alloy ◽  
Alternating Magnetic Field ◽  
Aluminium Bronze ◽  
Magnetic Field Treatment

Effects of Pulsed Magnetic Field on the Microstructure and Mechanical Properties of Mg97Y2Zn1 Alloy

2014 ◽  
Vol 1004-1005 ◽  
pp. 123-126 ◽  
Author(s):  
Jian Yin ◽  
Xiu Jun Ma ◽  
Jun Ping Yao ◽  
Zhi Jian Zhou
Keyword(s):  
Magnetic Field ◽  
Mechanical Properties ◽  
Grain Size ◽  
Volume Fraction ◽  
Pulsed Magnetic Field ◽  
Second Phase ◽  
Microstructure And Mechanical Properties ◽  
Magnetic Field Treatment ◽  
Semi Solid ◽  
Strength And Plasticity

Effect of pulsed magnetic field treatment on the microstructure and mechanical properties of Mg97Y2Zn1 alloy has been investigated. When the pulsed magnetic field is applied on the alloy in semi-solid state, the α-Mg was modified from developed dendrite to fine rosette, resulting in a refined solidification microstructure with the grain size decreased from 4 mm to 0.5 mm. The volume fraction of the second phase ( X phase) increased by about 10 %. The yield strength, fracture strength and plasticity were improved by 21 MPa, 38 MPa and 2.4 %, respectively. The improvement of mechanical properties was attributed to the refined grain size and increased volume fraction of X phase.

Relaxation of the remanent resistance of granular HTSC Y-Ba-Cu-O + CuO composites after magnetic field treatment

2008 ◽  
Vol 50 (6) ◽  
pp. 1014-1021 ◽  
Author(s):  
D. A. Balaev ◽  
A. A. Dubrovskiĭ ◽  
S. I. Popkov ◽  
K. A. Shaĭkhutdinov ◽  
M. I. Petrov
Keyword(s):  
Magnetic Field ◽  
Magnetic Field Treatment

scholarly journals Study on the effect of magnetic field treatment of newly isolated Paenibacillus sp.

2015 ◽  
Vol 56 (1) ◽  
Author(s):  
Jie Li ◽  
Yanli Yi ◽  
Xilei Cheng ◽  
Dageng Zhang ◽  
Muhammad Irfan
Keyword(s):  
Magnetic Field ◽  
Paenibacillus Sp ◽  
Magnetic Field Treatment

Improvement on Temperature-Sensing Property of Low-Density Polyethylene Based PTC Composites with Static Magnetic Field Treatment

2011 ◽  
Vol 393-395 ◽  
pp. 139-143
Author(s):  
Bao Zhong Han ◽  
Feng Lian Ma ◽  
Chang Ming Li
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Nickel Powder ◽  
Positive Temperature Coefficient ◽  
Temperature Sensing ◽  
Low Density Polyethylene ◽  
Room Temperature Resistivity ◽  
Low Density ◽  
Positive Temperature ◽  
Magnetic Field Treatment

A stable magnetic field was applied during hot press molding of low-density polyethylene (LDPE)/carbon black (CB)/ carbon nanotube (CNT) composites and HDPE/CB/nickel powder composites. The effect of magnetic field treatment on the temperature-sensing property of LDPE-based positive temperature coefficient (PTC) composites was investigated. Experimental results indicate that the magnetic field treatment can lead to an alignment of CNT and nickel powder in LDPE along the direction of the applied external magnetic field. The alignment of these filler particles can endow the composites with low room-temperature resistivity and high PTC intensity when the concentration of CB is decreased. The alignment also can significantly improve mechanical property and processability of the composites. Compared with CNT, nickel powder with strong magnetism has more sensitive response to external magnetic field and is much easier to align in LDPE. Addition of nickel powder is beneficial for developing PTC composites with excellent comprehensive properties.

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