NIST logo

Publication Citation: Strain and Magnetic-Field Characterization of a Bronze-Route Nb3Sn ITER Wire: Benchmarking of Strain Measurement Facilities at NIST and University of Twente

NIST Authors in Bold

Author(s): Najib Cheggour; Arend Nijhuis; H J. Krooshoop; Xifeng Lu; Jolene D. Splett; Theodore C. Stauffer; Loren F. Goodrich; Matthew C. Jewell; Arnaud Devred; Y Nabara;
Title: Strain and Magnetic-Field Characterization of a Bronze-Route Nb3Sn ITER Wire: Benchmarking of Strain Measurement Facilities at NIST and University of Twente
Published: June 01, 2012
Abstract: A benchmarking experiment was conducted to compare strain measurement facilities at the National Institute of Standards and Technology (NIST) and the University of Twente. The critical current of a bronze-route Nb3Sn wire, which was fabricated for the International Thermonuclear Experimental Reactor (ITER), was measured as a function of axial strain and magnetic field in liquid helium at both institutes. NIST used a Walters‰ spring strain device and University of Twente used a bending beam (,PacmanŠ) apparatus. The ITER bronze-route wire investigated had a very high irreversible strain limit that allowed comparing data over a wide range of applied strain between -1 % and +1 %. Similarities of the data obtained by use of the two apparatuses were remarkable, despite the many differences in their design and techniques.
Citation: IEEE Transactions on Applied Superconductivity
Volume: 22
Issue: 3
Pages: pp. 1 - 4
Keywords: Benchmarking;ITER;niobium-tin;strain
Research Areas: Instrumentation, Materials Science, Measurements