Thermodynamics of a charged hard sphere in a compressible dielectric fluid. A modification of the Born equation to include the compressibility of the solvent

1981 ◽  
Vol 85 (25) ◽  
pp. 3944-3949 ◽  
Author(s):  
Robert H. Wood ◽  
Jacques R. Quint ◽  
Jean Pierre E. Grolier
Keyword(s):  
Hard Sphere ◽  
Dielectric Fluid ◽  
Born Equation

Replica Ornstein—Zernike theory for chemically associating fluids with directional forces in disordered porous media: Smith—Nezbeda model in a hard sphere matrix

1997 ◽  
Vol 91 (4) ◽  
pp. 625-634 ◽  
Author(s):  
GERARDO OROZCO ◽  
OREST PIZIO ◽  
STEFAN SOKOLOWSKI ◽  
ANDRIJ TROKHYMCHUK
Keyword(s):  
Porous Media ◽  
Hard Sphere ◽  
Associating Fluids ◽  
Disordered Porous Media

The screened Coulomb (Yukawa) charged hard sphere binary fluid

1997 ◽  
Vol 92 (2) ◽  
pp. 211-228 ◽  
Author(s):  
R.J. F. LEOTE DE CARVALHO ◽  
R. EVANS
Keyword(s):  
Hard Sphere ◽  
Binary Fluid

Phase separation in fluid additive hard sphere mixtures?

1998 ◽  
Vol 95 (2) ◽  
pp. 131-135 ◽  
Author(s):  
DOUGLAS HENDERSON DEZSO BODA KWONG-YU CHAN
Keyword(s):  
Phase Separation ◽  
Hard Sphere

Hard-sphere radii for the generalized Lindemann criterion

1998 ◽  
Vol 77 (5) ◽  
pp. 1441-1447
Author(s):  
S. Rabinovich, E. Brook-Levinson, E. Z
Keyword(s):  
Hard Sphere ◽  
Lindemann Criterion

Effect of Powder-Mixed Dielectric on EDM Process Performance

2020 ◽  
Vol 38 (8A) ◽  
pp. 1226-1235
Author(s):  
Safa R. Fadhil ◽  
Shukry. H. Aghdeab
Keyword(s):  
Silicon Carbide ◽  
High Speed ◽  
Electrical Discharge Machining ◽  
Removal Rate ◽  
High Speed Steel ◽  
Transformer Oil ◽  
Dielectric Fluid ◽  
Peak Current ◽  
Powder Concentration ◽  
Pulse On Time

Electrical Discharge Machining (EDM) is extensively used to manufacture different conductive materials, including difficult to machine materials with intricate profiles. Powder Mixed Electro-Discharge Machining (PMEDM) is a modern innovation in promoting the capabilities of conventional EDM. In this process, suitable materials in fine powder form are mixed in the dielectric fluid. An equal percentage of graphite and silicon carbide powders have been mixed together with the transformer oil and used as the dielectric media in this work. The aim of this study is to investigate the effect of some process parameters such as peak current, pulse-on time, and powder concentration of machining High-speed steel (HSS)/(M2) on the material removal rate (MRR), tool wear rate (TWR) and the surface roughness (Ra). Experiments have been designed and analyzed using Response Surface Methodology (RSM) approach by adopting a face-centered central composite design (FCCD). It is found that added graphite-silicon carbide mixing powder to the dielectric fluid enhanced the MRR and Ra as well as reduced the TWR at various conditions. Maximum MRR was (0.492 g/min) obtained at a peak current of (24 A), pulse on (100 µs), and powder concentration (10 g/l), minimum TWR was (0.00126 g/min) at (10 A, 100 µs, and 10 g/l), and better Ra was (3.51 µm) at (10 A, 50 µs, and 10 g/l).

The Application of Powder Suspended Dielectric Fluid in Micro-EDM Processes to Reduce Machining Time

2009 ◽  
Vol 1 (3) ◽  
pp. 210-213 ◽  
Author(s):  
Gunawan Prihandana ◽  
Muslim Mahardika ◽  
M. Hamdi ◽  
Kimiyuki Mitsui
Keyword(s):  
Dielectric Fluid ◽  
Micro Edm ◽  
Machining Time

Critical consolute point in hard-sphere binary mixtures: Effect of the value of the eighth and higher virial coefficients on its location

2010 ◽  
Vol 75 (3) ◽  
pp. 359-369 ◽  
Author(s):  
Mariano López De Haro ◽  
Anatol Malijevský ◽  
Stanislav Labík
Keyword(s):  
Equation Of State ◽  
Binary Mixtures ◽  
Hard Sphere ◽  
Hard Spheres ◽  
Virial Coefficients ◽  
Fluid Mixture ◽  
Binary Fluid ◽  
Virial Series ◽  
Consolute Point ◽  
Critical Constants

Various truncations for the virial series of a binary fluid mixture of additive hard spheres are used to analyze the location of the critical consolute point of this system for different size asymmetries. The effect of uncertainties in the values of the eighth virial coefficients on the resulting critical constants is assessed. It is also shown that a replacement of the exact virial coefficients in lieu of the corresponding coefficients in the virial expansion of the analytical Boublík–Mansoori–Carnahan–Starling–Leland equation of state, which still leads to an analytical equation of state, may lead to a critical consolute point in the system.

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