Experiment Study on the Hot-Shock Consolidation of Tungsten Powder

Qiang Zhou; Peng Wan Chen; Xiang Gao; Wei Ping Shen

doi:10.4028/www.scientific.net/MSF.673.107

Paper Titles

Influence of Temperature on Dynamic Behavior of Rubber Materials by Taylor Impact Test
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Peculiarities of Weld Seams and Adjacent Zones Structures Formed in Process of Explosive Welding of Sheet Steel Plates
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Electromagnetic Bulging of Stainless Steel Sheet by Using Flat One-Turn Coil
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Experiment Study on the Hot-Shock Consolidation of Tungsten Powder
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Numerical Simulation of the Shock Compaction of W/Cu Powders
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Explosive Welding of ZrTiCuNiBe Bulk Metallic Glass to Crystalline Cu Plate
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Energy Dissipation in Explosive Welding of Dissimilar Metals
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Numerical Simulation of Explosively Compacted Powder-in-Tube MgB₂ Superconductor
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HomeMaterials Science ForumMaterials Science Forum Vol. 673Experiment Study on the Hot-Shock Consolidation of...

Experiment Study on the Hot-Shock Consolidation of Tungsten Powder

Abstract:

Experiments have been conducted to consolidate tungsten powder using hot-shock consolidation technique combining with underwater shock wave. An exothermic mixture (TiO2-C-Al-Fe2O3) was ignited by an electric wire coil to release a large mount of heat via a self-propagating high-temperature synthesis reaction which was used to pre-heat the sample powder. As getting the needed isothermal temperature, the powder was subsequently consolidated by shock wave generated by explosion of nitro methane, with a detonation velocity of 6.3 km/s and a detonation pressure of 11.9 GPa. The density and Vickers micro-hardness of the consolidated sample were determined and its microstructure was analyzed by scanning electron microscope (SEM). High-density tungsten samples were obtained by optimizing the experimental conditions. In this paper, the relative density and hardness of the recovered sample are 96.5% and 670 HV, respectively.

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Periodical:

Materials Science Forum (Volume 673)

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107-112

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https://doi.org/10.4028/www.scientific.net/MSF.673.107

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Online since:

January 2011

Authors:

Qiang Zhou, Peng Wan Chen, Xiang Gao, Wei Ping Shen

Keywords:

High-Temperature, Shock Consolidation, Tungsten Powder, Underwater Shock Wave

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