Author/Authors :
Rea، نويسنده , , K.E. and Viswanathan، نويسنده , , V. and Kruize، نويسنده , , A. and De Hosson، نويسنده , , J.Th.M. and O’Dell، نويسنده , , S. and McKechnie، نويسنده , , P. T. Ravi Rajagopalan، نويسنده , , S. and Vaidyanathan، نويسنده , , R. and Seal، نويسنده , , S.، نويسنده ,
Abstract :
Vacuum plasma spray (VPS) forming of tungsten-based metal matrix nanocomposites (MMCs) has shown to be a cost effective and time saving method for the formation of bulk monolithic nanostructured thermo-mechanical components. Spray drying of powder feedstock appears to have a significant effect on the improved mechanical properties of the bulk nanocomposite. The reported elastic modulus of the nanocomposite nearly doubles due to the presence of HfC nano particulates in the W matrix. High resolution transmission electron microscopy (HRTEM) revealed the retention of nanostructures at the select process conditions and is correlated with the enhanced mechanical properties of the nanocomposite.
Keywords :
Powder processing , Nanoindentation , Transmission electron microscopy , Carbides , nanocomposites