@article{027947fa77334875ad943ef83eeefa93,
title = "Microstructural and magnetic characterization of CuNb/Nb3Sn wires with different architectures",
abstract = "In this work we focus on the microstructural and magnetic characterization of CuNb/Nb3Sn wires with different architectures (design and reinforcement). The microstructural characterization was performed using scanning electron microscopy. AC magnetic susceptibility was measured with field applied both parallel and perpendicular to the wire axis. The heat treatment performed to form the A-15 superconducting phase leads to partial spheroidization followed by coarsening of the Nb filaments in the reinforcement material. The differences concerning the microstructure of the reinforcement material among the investigated wires were reflected in the broadening of the superconducting transition of Nb, more evident for a field applied parallel to the wire axis. From the magnetic data the wires were also compared in terms of the superconducting volume fraction.",
keywords = "CuNb/NbSn superconducting wires, Magnetic properties, Microstructure, Spheroidization",
author = "Sandim, {Maria J.R.} and Cangani, {Maxwell P.} and Sandim, {Hugo R.Z.} and Luis Ghivelder and Satoshi Awaji and Petre Badica and Kazuo Watanabe",
note = "Funding Information: Manuscript received November 16, 2007. This wok was supported in part by the Brazilian Financial Agency FAPESP under Contract 06/61753-2. The work of H. R. Z. Sandim and L. Ghivelder was supported by CNPq (Brazil). M. J. R. Sandim, M. P. Cangani, and H. R. Z. Sandim are with Es-cola de Engenharia de Lorena-USP, 12600-970 Lorena, SP, Brazil (e-mail: msandim@demar.eel.usp.br). L. Ghivelder is with Instituto de F{\'i}sica, UFRJ, Rio de Janeiro 21945-970, RJ, Brazil. S. Awaji and K. Watanabe are with Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan. P. Badica is with Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan and also with the National Institute of Materials Physics, Bucharest-Magurele 077125, Romania. Digital Object Identifier 10.1109/TASC.2008.920575",
year = "2008",
month = jun,
doi = "10.1109/TASC.2008.920575",
language = "English",
volume = "18",
pages = "1022--1025",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "2",
}