Research on the Manufacture of some Tungsten-Copper Composite after Vacuum Sintering

Cristina Ileana Pascu; Alexandru Stanimir; Ioan Vida-Simiti

doi:10.4028/www.scientific.net/MSF.672.311

Paper Titles

Effect of Different Vacuum Heat Treatments on the Microstructure of a Low Alloyed Sintered Steel
p.293

Effect of Foaming Agent on the Structure and Morphology of Al and Alumix 231 Foams Produced by Powder Metallurgy
p.297

PM Titanium – Based Composites with Improved Biocompatibility
p.303

Liquid Phase Sintering of Fe-Cu-Sn-Pb System
p.307

Research on the Manufacture of some Tungsten-Copper Composite after Vacuum Sintering
p.311

Behaviour of Some Unalloyed and Alloyed Sintered Steels at Static and Dynamic Loads
p.315

Evaluation of Surface Integrity during Machining with Different Tool Grades of Sic_p/Al-Si Composites Produced by Powder Metallurgy
p.319

Researches Regarding the Barium W Ferrite Pyrosynthesis by Microwave Heating
p.323

High Resistance Porous Pieces Obtained by PM, Reinforced with Metallic Yarns
p.327

HomeMaterials Science ForumMaterials Science Forum Vol. 672Research on the Manufacture of some...

Research on the Manufacture of some Tungsten-Copper Composite after Vacuum Sintering

Abstract:

The paper presents the results of the experimental research carried out in order to obtain pseudoalloys WNiCu used in electrical industry, for the electrical apparatus of high tension and great power. As a result it was compulsory to study the parameters that influence the densification process and the sintered properties, depending on the grain-size distribution of tungsten powder, compaction pressure and sintering temperature in vacuum. Therefore, it has been studied the influence of these parameters on the density, hardness and microstructures changes for the composites with 78%W-2%Ni-20%Cu, (% wt). The better results were obtained for the value of 1350 0C for the copper infiltration temperature.

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Periodical:

Materials Science Forum (Volume 672)

Pages:

311-314

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.672.311

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Online since:

January 2011

Authors:

Cristina Ileana Pascu, Alexandru Stanimir, Ioan Vida-Simiti

Keywords:

Composite, Density, Hardness, Tungsten, Vacuum

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