In:
Defect and Diffusion Forum, Trans Tech Publications, Ltd., Vol. 258-260 ( 2006-10), p. 152-157
Abstract:
The bronze process is a mature technology for the production of Nb3Sn superconducting
wires exploiting reaction diffusion behaviour in the Cu-Nb-Sn system. However, the superconducting properties depend strongly on the applied heat treatment, and optimisation of the
heat treatment is still largely by trial and improvement. Modelling of the reaction-diffusion behaviour would allow improved heat treatments to be designed; combination of this with a nondestructive
in situ characterisation technique would also permit improved superconducting wires to be produced. A finite difference reaction diffusion model has been designed to permit rapid
calculation of the bronze matrix composition and Nb3Sn layer thickness profiles across the wire cross-section as a function of time for any applied heat treatment. The model has also been designed
to calculate the electrical resistivity of the wire, which has previously been demonstrated as a suitable in situ characterisation technique. This model has been applied to isothermal and more
complex heat treatments and compared with experimental results. Good qualitative agreement has been found, and plans for further improvement of the model are described in detail.
Type of Medium:
Online Resource
ISSN:
1662-9507
DOI:
10.4028/www.scientific.net/DDF.258-260
DOI:
10.4028/www.scientific.net/DDF.258-260.152
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2006
detail.hit.zdb_id:
2051135-8
