Microstructural Analysis of Hardmetal Using WC Nanometric Powders

H.C.P. Oliveira; L.H.F. Borges; Rômulo Crespo Tardim; M.S. Freitas; Guerold Sergueevitch Bobrovinitchii; Marcello Filgueira

doi:10.4028/www.scientific.net/MSF.660-661.145

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The Effect of High Charging Rates Activation on the Specific Discharge Capacity and Efficiency of a Negative Electrode Based on a LaMgAlMnCoNi Alloy
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Determination of the Crystal Alignment of Pr-Fe-B Magnets Using the (105) X-Ray Pole Figure
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Microstructural Analysis of Hardmetal Using WC Nanometric Powders
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HomeMaterials Science ForumMaterials Science Forum Vols. 660-661Microstructural Analysis of Hardmetal Using WC...

Microstructural Analysis of Hardmetal Using WC Nanometric Powders

Abstract:

Nanometric powders of WC with 10 weight% Co were mixed in high-energy mill. Compaction was performed at 200MPa and processed by the technique of high pressure and high temperature (HPHT). Sintering conditions were P = 5GPa, T = 1300-1400-1500° C, t = 2-4 min. For comparative purposes, samples were conventionally sintered at T = 1400° C, t = 45 min, vacuum of 10-2 mbar.

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Materials Science Forum (Volumes 660-661)

Pages:

145-151

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.660-661.145

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Online since:

October 2010

Authors:

H.C.P. Oliveira, L.H.F. Borges, Rômulo Crespo Tardim, M.S. Freitas, Guerold Sergueevitch Bobrovinitchii, Marcello Filgueira

Keywords:

HPHT Sintering, SEM-EDS, Ultrafine Hard Metal

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