Experimental observation of metal-electrolyte interface stability in a model of liquid metal battery

2021 ◽  
Vol 57 (2) ◽  
pp. 171-180
Keyword(s):  
Magnetic Field ◽  
Surface Waves ◽  
Cross Section ◽  
Surface Deformation ◽  
Aqueous Electrolyte ◽  
Liquid Gallium ◽  
Maximum Height ◽  
Vertical Magnetic Field ◽  
Side Walls ◽  
Liquid Metal Battery

An electric current is passed through the interface of liquid gallium and aqueous electrolyte in a square cross-section cell under a background vertical magnetic field. The oscillation increment of surface waves is calculated from potential measurements at variable current strengths. The surface is also visually observed through transparent side walls. No growing surface waves occur for the Sele parameter as high as 1.5. Instead, a quasi-static surface deformation is caused by the rotation of the metal and electrolyte. The maximum height of this surface deformation increases approximately in proportion to the current. Figs 7, Refs 15.

Effect of magnetic field on parametrically driven surface waves

2006 ◽  
Vol 463 (2079) ◽  
pp. 711-722 ◽  
Author(s):  
Supriyo Paul ◽  
Krishna Kumar
Keyword(s):  
Magnetic Field ◽  
Surface Waves ◽  
Liquid Metals ◽  
Tricritical Point ◽  
Thin Layers ◽  
Vertical Magnetic Field ◽  
Harmonic Solution ◽  
Chandrasekhar Number ◽  
The Magnetic Field ◽  
Primary Instability

Stability analysis of parametrically driven surface waves in liquid metals in the presence of a uniform vertical magnetic field is presented. Floquet analysis gives various subharmonic and harmonic instability zones. The magnetic field stabilizes the onset of parametrically excited surface waves. The minima of all the instability zones are raised by a different amount as the Chandrasekhar number is raised. The increase in the magnetic field leads to a series of bicritical points at a primary instability in thin layers of a liquid metal. The bicritical points involve one subharmonic and another harmonic solution of different wavenumbers. A tricritical point may also be triggered as a primary instability by tuning the magnetic field.

Surface waves in ferrofluids under vertical magnetic field

1999 ◽  
Vol 9 (2) ◽  
pp. 335-341 ◽  
Author(s):  
J. Browaeys ◽  
J.-C. Bacri ◽  
C. Flament ◽  
S. Neveu ◽  
R. Perzynski
Keyword(s):  
Magnetic Field ◽  
Surface Waves ◽  
Vertical Magnetic Field

scholarly journals Atomic Structure of Defects in GaN:Mg grown with Ga polarity

2003 ◽  
Vol 798 ◽  
Author(s):  
Z. Liliental-Weber ◽  
T. Tomaszewicz ◽  
D. Zakharov ◽  
J. Jasinski ◽  
M. A. O'Keefe ◽  
...  
Keyword(s):  
Cross Section ◽  
Three Dimensional ◽  
Liquid Gallium ◽  
Scattered Electron ◽  
Polarity Inversion ◽  
Lateral Overgrowth ◽  
Phase Images ◽  
The Matrix ◽  
High Resolution Images ◽  
Side Walls

ABSTRACTElectron microscope phase images, produced by direct reconstruction of the scattered electron wave from a focal series of high-resolution images, were used to determine the nature of defects formed in GaN:Mg crystals. We studied bulk crystals grown from dilute solutions of atomic nitrogen in liquid gallium at high pressure and thin films grown by the MOCVD method. All the crystals were grown with Ga-polarity. In both types of samples the majority of defects were three dimensional Mg-rich hexagonal pyramids with bases on the (0001) plane and six walls on {1123} planes seen in cross-section as triangulars. Some other defects appear in cross-section as trapezoidal (rectangular) defects as a result of presence of truncated pyramids. Both type of defects have hollow centers. They are decorated by Mg on all six side walls and a base. The GaN which grows inside on the defect walls shows polarity inversion. It is shown that change of polarity starts from the defect tip and propagates to the base, and that the stacking sequence changes from ab in the matrix to bc inside the defect. Exchange of the Ga sublattice with the N sublattice within the defect leads to 0.6±0.2Å displacement between Ga sublattices outside and inside the defects. It is proposed that lateral overgrowth of the cavities formed within the defect takes place to restore matrix polarity on the defect base.

On the control of surface waves by a vertical magnetic field

2005 ◽  
Vol 17 (11) ◽  
pp. 117101 ◽  
Author(s):  
Binod Sreenivasan ◽  
Peter A. Davidson ◽  
Jacqueline Etay
Keyword(s):  
Magnetic Field ◽  
Surface Waves ◽  
Vertical Magnetic Field

scholarly journals Overstable rotating convection in the presence of a vertical magnetic field

2021 ◽  
Vol 33 (3) ◽  
pp. 034130
Author(s):  
Ankan Banerjee ◽  
Manojit Ghosh ◽  
Lekha Sharma ◽  
Pinaki Pal
Keyword(s):  
Magnetic Field ◽  
Vertical Magnetic Field ◽  
Rotating Convection

scholarly journals Effect of magnetic field on nanofluid free convection in Conical Partially Annular Space

2020 ◽  
Vol 330 ◽  
pp. 01005
Author(s):  
Abderrahmane AISSA ◽  
Mohamed Amine MEDEBBER ◽  
Khaled Al-Farhany ◽  
Mohammed SAHNOUN ◽  
Ali Khaleel Kareem ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Hartmann Number ◽  
Volume Fraction ◽  
Boussinesq Approximation ◽  
Simulation Software ◽  
Comsol Multiphysics ◽  
Governing Equations ◽  
Element Analysis ◽  
Vertical Side ◽  
Side Walls

Natural convection of a magneto hydrodynamic nanofluid in a porous cavity in the presence of a magnetic field is investigated. The two vertical side walls are held isothermally at temperatures Th and Tc, while the horizontal walls of the outer cone are adiabatic. The governing equations obtained with the Boussinesq approximation are solved using Comsol Multiphysics finite element analysis and simulation software. Impact of Rayleigh number (Ra), Hartmann number (Ha) and nanofluid volume fraction (ϕ) are depicted. Results indicated that temperature gradient increases considerably with enhance of Ra and ϕ but it reduces with increases of Ha.

Observation of surface deformation of tungsten exposed to single pulsed high heat flux and magnetic field for divertor design

2021 ◽  
Vol 171 ◽  
pp. 112547
Author(s):  
Takafumi Okita ◽  
Yuki Matsuda ◽  
Sho Saito ◽  
Eiji Hoashi ◽  
Kenzo Ibano ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Heat Flux ◽  
Surface Deformation ◽  
High Heat ◽  
High Heat Flux

Transverse surface waves in magneto-elasticity

1966 ◽  
Vol 62 (3) ◽  
pp. 541-545 ◽  
Author(s):  
C. M. Purushothama
Keyword(s):  
Magnetic Field ◽  
Wave Propagation ◽  
Surface Waves ◽  
Elastic Medium ◽  
Uniform Magnetic Field ◽  
Shear Waves ◽  
Plane Shear ◽  
Electrically Conducting ◽  
Velocity Of Propagation

AbstractIt has been shown that uncoupled surface waves of SH type can be propagated without any dispersion in an electrically conducting semi-infinite elastic medium provided a uniform magnetic field acts non-aligned to the direction of wave propagation. In general, the velocity of propagation will be slightly greater than that of plane shear waves in the medium.

Effects of a Vertical Magnetic Field on Particle Confinement in a Magnetized Plasma Torus

2004 ◽  
Vol 93 (16) ◽  
Author(s):  
S. H. Müller ◽  
A. Fasoli ◽  
B. Labit ◽  
M. McGrath ◽  
M. Podestà ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetized Plasma ◽  
Vertical Magnetic Field ◽  
Plasma Torus ◽  
Particle Confinement
Sign in / Sign up

Export Citation Format

Share Document