Microstructure and properties of Cu-Nb and Cu-Ag nanofiber composites
PBN-AR
Instytucja
Instytut Fizyki Molekularnej Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Archives of Civil and Mechanical Engineering
ISSN
1644-9665
EISSN
Wydawca
Elsevier Sp. z o.o.
DOI
URL
Rok publikacji
2015
Numer zeszytu
3
Strony od-do
689-697
Numer tomu
15
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
0.50
Autorzy
Pozostali autorzy
+ 3
Słowa kluczowe
en
copper alloy
fibrous composite
mechanical properties
electrical properties
microstructure
Streszczenia
Język
en
Treść
There is a growing demand for new high strength and high electrical conductivity materials for the advanced electric applications. The promising materials for generators used to produce strong and variable magnetic fields are Cu-Ag and Cu-Nb wires. Two classical copper alloys were selected for this investigation. The third material used in the studies was produced by bundle drawing of niobium wire in a copper tube. Microstructure, mechanical and electrical properties were examined in relation to processing technology. Microstructure of Cu-Ag wires consisted of silver-rich bands distributed in a copper-rich matrix, whereas that of the Cu-Nb alloy wire was not homogeneous. Despite significant plastic deformation, globular particles of niobium, which do not contribute to the increase of mechanical properties, were also observed in addition to narrow bands of niobium-rich phase. Multiple drawing of Nb wire bundle in a copper jacket is a promising method for the production of Cu-Nb microcomposites. The number of wires increases in geometric progression during subsequent bundling, which results in the reduction of Nb band cross-section. Under this work, a wire having more than 820,000 niobium filaments of a diameter between 100 and 200 nm evenly distributed in a pure copper matrix was produced. (C) 2014 Politechnika Wroclawska. Published by Elsevier Sp. z o.o. All rights reserved.
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
627526
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