نتایج جستجو برای: electro explosion of wire

تعداد نتایج: 21170990  

2010
A. Fedotov-Gefen Ya. E. Krasik

The generation of an extreme water state 130 GPa, 5000 K, and 3.4 g /cm3 which is characterized as dense plasma at the axis of a converging shock wave is reported. A 4 kJ pulse generator was used to explode a 40 Cu-wire array, generating a cylindrical shock wave. The measured shock wave trajectory and energy deposited into the water flow were used in hydrodynamic simulations coupled with the eq...

2012
R. Sugunakar Reddy M. Kamaraj U. Kamachi Mudali S. R. Chakravarthy R. Sarathi

Zirconium carbide nanoparticles were produced by wire explosion process by exploding zirconium conductor in methane ambiance. X-ray diffraction studies of the particles produced by wire explosion process confirm the formation of cubic zirconium carbide particles. The results of the study indicates that unreacted zirconium content in the zirconium carbide powder could be reduced by exploding the...

A. Jafarimoghaddam A. Jahani H. Aberoumand S. Aberoumand

In order to examine the laminar convective heat transfer of nanofluid, experiments carried out using silver-oil nanofluid in a concentric annulus with outer constant heat flux as boundary condition. Silver-oil nanofluid prepared by Electrical Explosion of Wire technique and observed no nanoparticles agglomeration during nanofluid preparation process and carried out experiments. The average size...

ژورنال: مواد پرانرژی 2011
زمانی, جمال, شیخی کوهسار, علی اصغر , معتمد الشریعتی, سید هادی, کدخدا قمصری, علی,

  Abstract   In this paper, the effect of strain rate sensitivity of materials in the case of a fully clamped circular plate has been discussed introducing a new criterion called "dynamic to static collapse pressure ratio". In order to do so, a simple mass and wire model is assumed. Then, using Cowper-Symonds constitutive relation and Perrone-Bhadra Simplifications, the mean strain rate of su...

Journal: :Journal of the Japan Society for Precision Engineering 1992

Journal: :Journal of physics 2023

Abstract The theoretical analysis and numerical simulation are combined to explore the generation mechanism propagation characteristics of shock wave in WEIF process. results show that with increase linear density deposition energy, distance same time is longer; as increases, velocity on front gradually decreases. In early stage electric explosion metal wire, shape generated expansion evolution...

Journal: :Journal of the Japan Society of Powder and Powder Metallurgy 1973

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