Reactive Spark Plasma Sintering of rhenium diboride

LOCCI, ANTONIO MARIO;LICHERI, ROBERTA;ORRU', ROBERTO;CAO, GIACOMO

2009-01-01

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Abstract

The simultaneous synthesis and densification of rhenium diboride is investigated starting from Re and B as reactants by using the Spark Plasma Sintering (SPS) apparatus. It is shown that SPS represents an effective technique to synthesize ReB(2) bulk samples with high purity and density. In particular, a dense product with traces of secondary phases (Re(7)B(3)) is obtained in 35 min of total processing time by applying a maximum temperature of 1600 degrees C and a mechanical pressure of 20 MPa. (C) 2008 Elsevier Ltd and Techna Group S.r.l. All rights reserved.