Abstract
A new synthetic route to nanoparticulate tungsten carbide–cobalt is demonstrated, using a sol–gel approach in an aqueous solution containing a biopolymer. On calcination, the biopolymer was found to act both as a source of carbon and also as an anti-sintering, structure-directing template. By keeping the tungsten carbide phase nanoparticulate, the hardness was found to be commensurate with that seen in more traditional ‘heat and beat’ syntheses.
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