Tungsten–nanodiamond composite powders produced by ball milling

Nunes, D.; Livramento, Vanessa; Mardolcar, U. V.; Correia, J.B.; Carvalho, Patricia Almeida

http://hdl.handle.net/10400.9/1661

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Autores

Carvalho, Patricia Almeida

Resumo(s)

The major challenge in producing tungsten–nanodiamond composites by ball milling lies in successfully dispersing carbon nanoparticles in the metallic matrix while keeping carbide formation at a minimum. Processing windows for carbide minimization have been established through systematic variation of the nanodiamond fraction, milling energy and milling time. Materials characterization has been carried out by X-ray diffraction, scanning and transmission electron microscopy and microhardness testing. Nanostructured matrices with homogeneously dispersed particles that preserved the diamond structure have been produced. Differential thermal analysis has been used to evaluate the composites thermal stability.

URI

http://hdl.handle.net/10400.9/1661

Citação

Nunes, D.; Livramento, V.; Mardolcar, U.V.; Correia, J.B.; Carvalho, P.A. Tungsten–nanodiamond composite powders produced by ball milling. In:Journal of Nuclear Materials, 2012, vol. 426, nº1-3, p.115-119

Editora

Elsevier

Coleções

ME - Artigos em revistas internacionais

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