Synthesis and characterization of ferromagnetic polyaniline with conductivity in an applied magnetic field

2008 ◽  
Vol 109 (5) ◽  
pp. 3024-3029 ◽  
Author(s):  
Ya Zhang ◽  
Chunxia Zhu ◽  
Jinqing Kan
Keyword(s):  
Magnetic Field ◽  
Applied Magnetic Field ◽  
Synthesis And Characterization

scholarly journals Simulation Study on the Motion of Magnetic Particles in Silicone Rubber-Based Magnetorheological Elastomers

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Zhiqiang Xu ◽  
Heng Wu ◽  
Qiuliang Wang ◽  
Liyin Yi ◽  
Jun Wang
Keyword(s):  
Magnetic Field ◽  
Silicone Rubber ◽  
Applied Magnetic Field ◽  
Magnetic Particles ◽  
Equations Of Motion ◽  
Viscous Force ◽  
The Finite Element Method ◽  
Magnetic Field Model ◽  
Magnetorheological Effect

Magnetorheological elastomer (MRE) is an intelligent composite material and has been widely used in various fields such as vibration reduction and sensing. MRE has an excellent magnetorheological effect through the chaining of its internal magnetic particles. Current studies on MREs mainly focus on the preparation of materials and characterization of mechanical properties. However, very few studies have been conducted on the mechanism of magnetic particle motion during MRE curing. Based on the silicone rubber-based MRE, the motion mechanism of magnetic particles during curing was explored through numerical simulation. First, we analyzed the magnetic force and viscous force of magnetic particles in MRE and discussed the equations of motion of magnetic particles under applied magnetic field. Further, we established a uniform magnetic field model through the finite element method and simulated the motion of two magnetic particles under the magnetic field. Finally, we discussed the effects of particle distribution angles, particle radii, applied magnetic field strength, and distance between particles on particle velocity and displacement. The results show that the distance between particles has the greatest influence on the motion of magnetic particles, and the size of the distance between particles will affect the contact time of the particles, thus affecting the chain formation of magnetic particles in the MRE.

Electrical and Dielectric properties of Bi6Mn2Ti3O18

2002 ◽  
Vol 755 ◽  
Author(s):  
S.V Suryanarayana ◽  
Suresh M.B ◽  
Srinivas K ◽  
Venkata Ramana E ◽  
Swaminathan G
Keyword(s):  
Magnetic Field ◽  
Dielectric Constant ◽  
Microwave Sintering ◽  
Physical Property ◽  
Pyroelectric Coefficient ◽  
Synthesis And Characterization ◽  
X Ray ◽  
Electrical And Dielectric Properties ◽  
Magnetic Ion

ABSTRACTBismuth layer structured ferroelectrics show interesting physical property variations as a function of external parameters viz., temperature, frequency and magnetic field. In some of these materials, when a magnetic ion is incorporated in the lattice, they show simultaneous ferroelectricity and magnetism, thus exhibiting magnetoelectric output under the influence of an external magnetic field. This paper reports the synthesis and characterization of Bi6Mn2Ti3O18(BMT) which is isomorphous with Bi6Fe2Ti3O18(BFT). The material was prepared both by solid state and microwave sintering routes. The characterization includes X-ray, SEM, conductivity, dielectric constant and pyroelectric coefficient. The results are compared with Fe containing analogue.

Synthesis and characterization of polyaniline in magnetic field

2008 ◽  
Vol 23 (3) ◽  
pp. 316-318 ◽  
Author(s):  
Li Ma ◽  
Xing Zheng ◽  
Mengyu Gan ◽  
Xinsheng Du ◽  
Lijun Feng
Keyword(s):  
Magnetic Field ◽  
Synthesis And Characterization

Synthesis and characterization of iron oxide nanoparticles grown via a non-conventional chemical method using an external magnetic field

2019 ◽  
Vol 242 ◽  
pp. 13-16 ◽  
Author(s):  
J. Arenas-Alatorre ◽  
S. Tehuacanero C. ◽  
O. Lukas ◽  
A. Rodríguez-Gómez ◽  
R. Hernández Reyes ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Iron Oxide ◽  
External Magnetic Field ◽  
Iron Oxide Nanoparticles ◽  
Chemical Method ◽  
Synthesis And Characterization ◽  
Oxide Nanoparticles

scholarly journals Material impacts and heat flux characterization of an electrothermal plasma source with an applied magnetic field

2017 ◽  
Vol 122 (6) ◽  
pp. 063302 ◽  
Author(s):  
T. E. Gebhart ◽  
R. A. Martinez-Rodriguez ◽  
L. R. Baylor ◽  
J. Rapp ◽  
A. L. Winfrey
Keyword(s):  
Magnetic Field ◽  
Heat Flux ◽  
Applied Magnetic Field ◽  
Plasma Source ◽  
Electrothermal Plasma
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