TY - JOUR
T1 - Mechanical properties of Gd123 bulk superconductor at liquid nitrogen temperature
AU - Murakami, Akira
AU - Katagiri, Kazumune
AU - Kasaba, Koichi
AU - Shoji, Yoshitaka
AU - Noto, Koshichi
AU - Teshima, Hidekazu
AU - Sawamura, Mitsuru
AU - Murakami, Masato
N1 - Funding Information:
Manuscript received October 21, 2003. This work was supported by Japan Science and Technology Corporation under the Joint-Research Project for Regional Intensive in Iwate Prefecture on “Development of practical applications of magnetic field technology for use in the region and in everyday living.” A. Murakami is with the Faculty of Science and Technology, Hirosaki University, Hirosaki 036-8561, Japan (e-mail: amura@mech.hirosaki-u.ac.jp).
PY - 2004/6
Y1 - 2004/6
N2 - In order to investigate the mechanical properties of the Gd123 single grain bulk superconductor at low temperature, bending tests were carried out. The bending fracture strength at LNT (liquid nitrogen temperature) scattered from 83 to 120 MPa was higher than that at RT, from 62 to 86 MPa. However, the Young's modulus at LNT scattered from 109 to 123 GPa was comparable to that at RT, from 110 to 129 GPa. The Weibull coefficient for the bending strength at LNT, 6.5, was almost identical with that at RT, 6.9. The endurance limit for the repeated pulsating bending up to the 5 × 104 cycles at LNT, 70 MPa, was about 70% of the average value of the monotonic bending strength.
AB - In order to investigate the mechanical properties of the Gd123 single grain bulk superconductor at low temperature, bending tests were carried out. The bending fracture strength at LNT (liquid nitrogen temperature) scattered from 83 to 120 MPa was higher than that at RT, from 62 to 86 MPa. However, the Young's modulus at LNT scattered from 109 to 123 GPa was comparable to that at RT, from 110 to 129 GPa. The Weibull coefficient for the bending strength at LNT, 6.5, was almost identical with that at RT, 6.9. The endurance limit for the repeated pulsating bending up to the 5 × 104 cycles at LNT, 70 MPa, was about 70% of the average value of the monotonic bending strength.
KW - Bending test
KW - Cryogenic temperature
KW - Fatigue test
KW - Gd123 bulk superconductor
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U2 - 10.1109/TASC.2004.830391
DO - 10.1109/TASC.2004.830391
M3 - Article
AN - SCOPUS:4344687623
VL - 14
SP - 1050
EP - 1053
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 2
ER -