Synthesis of Niobium Carbide (NbC) by powder metallurgy high energy milling technique
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2010-10-05
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ANTONELLO, R. T.
DE ARAÚJO FILHO, O. O.
GONZALEZ, C. H.
URTIGA FILHO, S. L.
AMBROZIO FILHO, F.
DE ARAÚJO FILHO, O. O.
GONZALEZ, C. H.
URTIGA FILHO, S. L.
AMBROZIO FILHO, F.
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Materials Science Forum
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ANTONELLO, R. T.; DE ARAÚJO FILHO, O. O.; GONZALEZ, C. H.;URTIGA FILHO, S. L.; AMBROZIO FILHO, F. Synthesis of Niobium Carbide (NbC) by powder metallurgy high energy milling technique. Materials Science Forum, v. 660-661, p. 443-447, Oct. 2010.
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The aim of this work is to obtain and characterize the Niobium Carbide (NbC) by a suitable high energy milling technique using a SPEX Mill vibratory type and niobium and carbon (graphite) powders. Since this carbide is scarced in the national market and it's necessary to apply this NbC as a reinforcement in two molybdenum high speed steels (AISI M2 and AISI M3:2) object of another work motivated this research. The powders were submitted to a high energy milling procedure for suitable times and conditions and then were characterized by means of Scanning Electronic Microscopy (SEM) and X-ray diffraction (DRX) techniques. The ball-to-powder weight ratio was 10:1. The analyzed samples showed that the high-energy milling is an alternative route of the NbC synthesis. © (2010) Trans Tech Publications.