Autor(es):
Nunes, D. 
; Livramento, Vanessa ; Mardolcar, U. V. ; Correia, J. Brito ; Carvalho, P. A.
Data: 2012
Identificador Persistente: http://hdl.handle.net/10400.9/1661
Origem: Repositório do LNEG
Detalhes do Documento
Tungsten–nanodiamond composite powders produced by ball milling
Descrição
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.
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.
Tipo de Documento
Artigo
Idioma Inglês
Idioma Inglês
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