Original title: Preparation of W-Cu composites by infiltration of w skeletons review
Authors: Matějíček, Jiří
Document type: Papers
Conference/Event: Anniversary International Conference on Metallurgy and Materials - METAL 2021 /30./, Brno (CZ), 20210526
Year: 2021
Language: eng
Abstract: Tungsten-copper composites feature high corrosion and erosion resistance, very good thermal and electrical conductivity, low thermal expansion and good mechanical properties. They are used in a variety of demanding applications, such as arc-resistant electrodes, high voltage electrical contacts, heat sinks for integrated circuits, etc. They are also foreseen for use in plasma-facing components of fusion reactors, e.g. as a transition layer between the (refractory) plasma-facing tungsten and the (highly conductive) copper-based cooling structure. In general, high density and good bonding of the tungsten and copper phases is desired. Molten copper infiltration into tungsten preforms is among the prospective fabrication technologies - the structure and properties of the resultant composites are dependent on the specific technological parameters. In this paper, the preparation of W-Cu composites by infiltration of W skeletons is reviewed and attention is paid to the influence of these particular parameters: infiltration temperature, time and atmosphere, tungsten preform porosity, orientation and chemistry (presence or absence of other elements). Optimum parameter combinations for achieving high density and proper bonding of copper and tungsten are identified.
Keywords: Composites; Copper; Molten copper infiltration; Tungsten
Project no.: TK03030045
Funding provider: GA TA ČR
Host item entry: METAL 2021. 30th Anniversary International Conference on Metallurgy and Materials. Conference proceedings, ISBN 978-80-87294-99-4, ISSN 2694-9296
Note: Související webová stránka: https://www.confer.cz/metal/2021/4248-preparation-of-w-cu-composites-by-infiltration-of-w-skeletons-review

Institution: Institute of Plasma Physics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: https://hdl.handle.net/11104/0338798

Permalink: http://www.nusl.cz/ntk/nusl-519935

The record appears in these collections:
Research > Institutes ASCR > Institute of Plasma Physics
Conference materials > Papers
 Record created 2023-01-29, last modified 2023-03-28

No fulltext
  • Export as DC, NUŠL, RIS
  • Share