Title :
Heat Treatment Effect on the Magnetic Properties of Cu-Nb Micro-Composites
Author :
Xiaoyan Xu ; Yafeng Lu ; Ming Liang ; Zhongyuan Liu ; Fang Zhang ; Chengshan Li
Author_Institution :
Northwest Inst. for Nonferrous Metal Res., Xi´an, China
fDate :
6/1/2012 12:00:00 AM
Abstract :
We develop Cu-Nb micro-composites with high strength and conductivity by bundling and drawing process for high pulsed field magnets. We report the heat treatment effect on the magnetic, mechanical properties of Cu-17 vol.% Nb composites. Within the heat treat temperature of 450°C ~ 800°C, noticeable changes take place in the magnetic properties of composites, since recovery and recrystallization of the Nb fibers and the Cu matrix happen under different treatment conditions. The characteristic of magnetic hysteresis curves caused by the proximity effect and controlled by the Cu/Nb interface structure of the Cu-Nb micro-composites is discussed.
Keywords :
copper alloys; drawing (mechanical); electrical conductivity; fibre reinforced composites; heat treatment; interface magnetism; interface structure; magnetic hysteresis; micromagnetics; niobium alloys; recovery; recrystallisation; Cu-Nb; bundling process; conductivity; copper matrix; drawing process; heat treatment effect; interface structure; magnetic hysteresis curves; magnetic properties; mechanical properties; microcomposites; niobium fibres; proximity effect; recrystallization; temperature 450 degC to 800 degC; Annealing; Copper; Magnetic properties; Magnetization; Niobium; Temperature measurement; Wires; High strength and high conductivity; magnetic property; metal composites;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2011.2178986
