Electrical conductivity of high-strength Cu-Nb microcomposites

Author

Kozlenkova, N.I. ; Pantsyrnyi, V.I. ; Nikulin, A.D. ; Shikov, A.K. ; Potapenko, I.I.

Author_Institution

Bochvar (A.A.) All-Union Sci. Res. Inst. of Inorg. Mater., Moscow, Russia

Volume

32

Issue

4

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

2921

Lastpage

2924

Abstract

The conductivity of Cu-Nb microcomposites was studied as a function of the composition and the parameters of the microstructure varying with the degree of deformation. The effect of heat treatment on conductivity of Cu and composites is also considered. The conductivity of Cu-Nb composites with the reduction in area lnA₀/A<4.9 is well described by the Landauer formula allowing for conductivity and the volume fraction of the components. The influence of the principal scattering mechanisms on conductivity of Cu in the composite is treated on the grounds of the experimental results obtained in this work and the analysis of the literary data. The linear correlation between strength and conductivity is obtained for the specimens heat treated at temperatures up to 600°C. This correlation is violated, however, for the specimens subjected to heat treatment at temperatures above 600°C

Keywords

copper alloys; crystal microstructure; electrical conductivity; heat treatment; mechanical strength; multifilamentary superconductors; niobium alloys; plastic deformation; 0 to 900 degC; Cu-Nb; Landauer formula; components volume fraction; composites; composition; deformation; electrical conductivity; heat treatment; high-strength Cu-Nb microcomposites; microstructure; principal scattering mechanisms; strength; superconductor; Conductivity; Copper; Electric resistance; Electrodes; Furnaces; Heat treatment; Microstructure; Niobium; Scattering; Temperature;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.511487

Filename

511487