Production of Cu/Diamond composites for first-wall heat sinks

Nunes, D.; Correia, J.B.; Carvalho, Patricia Almeida; Shohoji, Nobumitsu; Silva, C.; Fernandes, H.; Alves, L. C.; Hanada, K.; Osawa, E.

Publication

Production of Cu/Diamond composites for first-wall heat sinks

2010-09-27Conference object

dc.contributor.author	Nunes, D.
dc.contributor.author	Correia, J.B.
dc.contributor.author	Carvalho, Patricia Almeida
dc.contributor.author	Shohoji, Nobumitsu
dc.contributor.author	Silva, C.
dc.contributor.author	Fernandes, H.
dc.contributor.author	Alves, L. C.
dc.contributor.author	Hanada, K.
dc.contributor.author	Osawa, E.
dc.date.accessioned	2011-02-01T15:01:57Z
dc.date.available	2011-02-01T15:01:57Z
dc.date.issued	2010-09-27
dc.description.abstract	Due to their suitable thermal conductivity and strength copper-based materials have been considered appropriate heat sinks for first wall panels in nuclear fusion devices. However, increased thermal conductivity and mechanical strength are demanded and the concept of property tailoring involved in the design of metal matrix composites advocates for the potential of nanodiamond dispersions in copper. Copper-nanodiamond composite materials can be produced by mechanical alloying followed by a consolidation operation. Yet, this powder metallurgy route poses several challenges: nanodiamond presents intrinsically difficult bonding with copper; contamination by milling media must be closely monitored; and full densification and microstructural homogeneity should be obtained with consolidation. The present line of work is aimed at an optimization of the processing conditions of Cu-nanodiamond composites. The challenges mentioned above have been addressed, respectively, by incorporating chromium in the matrix to form a stable carbide interlayer binding the two components; by assessing the contamination originating from the milling operation through particle-induced X-ray emission spectroscopy; and by comparing the densification obtained by spark plasma sintering with hot-extrusion data from previous studies.	por
dc.identifier.citation	Nunes, D.; Correia, J. B.; Carvalho, P. A.; Shohoji, N.; Fernandes, H.; Silva, C.; Alves, L. C.; Hanada, K.; Osawa, E. Production of Cu/Diamond composites for first-wall heat sinks. In: 26th Symposium on Fusion Technology, 26th SOFT 2010, Porto, 27 September - 1October 2010	por
dc.identifier.uri	http://hdl.handle.net/10400.9/1146
dc.language.iso	eng	por
dc.subject	Copper	por
dc.subject	Nanodiamond	por
dc.subject	Interface reinforcement	por
dc.subject	Carbide formation	por
dc.subject	Spark plasma sintering	por
dc.title	Production of Cu/Diamond composites for first-wall heat sinks	por
dc.type	conference object
dspace.entity.type	Publication
oaire.citation.conferencePlace	Porto	por
oaire.citation.title	26th Symposium on Fusion Technology, 26th SOFT 2010	por
person.familyName	Nunes
person.familyName	Correia
person.familyName	carvalho
person.givenName	Daniela
person.givenName	Jose B.
person.givenName	patricia
person.identifier.ciencia-id	C118-38FB-6A57
person.identifier.ciencia-id	C31C-D617-6377
person.identifier.ciencia-id	021E-97A3-F128
person.identifier.orcid	0000-0003-3115-6588
person.identifier.orcid	0000-0002-8314-0695
person.identifier.orcid	0000-0002-5447-0409
person.identifier.rid	I-2734-2013
person.identifier.rid	C-1150-2009
person.identifier.scopus-author-id	26030595200
person.identifier.scopus-author-id	7202364148
person.identifier.scopus-author-id	7102859165
rcaap.rights	openAccess	por
rcaap.type	conferenceObject	por
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