Mechanical properties of Gd123 bulk superconductor at liquid nitrogen temperature
Mechanical properties of Gd123 bulk superconductor at liquid nitrogen temperature
复制标题
Gd123块体超导体在液氮温度下的力学性能
DOI：
10.1109/tasc.2004.830391
复制
发表时间：
2004
影响因子：
1.8
通讯作者：
M. Murakami
中科院分区：
文献类型：
--
作者：
A. Murakami;K. Katagiri;K. Kasaba;Y. Shoji;K. Noto;H. Teshima;M. Sawamura;M. Murakami
为了研究Gd123单晶块状超导体在低温下的力学性能，进行了弯曲试验。LNT（液氮温度）下的弯曲断裂强度分布范围为83 ~ 120 MPa，高于RT时的62 ~ 86 MPa。然而，LNT的杨氏模量从109到123 GPa与RT的相似，从110到129 GPa。LNT时抗弯强度的Weibull系数为6.5，与RT时的Weibull系数为6.9基本一致。在LNT （70 MPa）下，重复脉动弯曲强度达到5 /spl次/ 10/sup 4次/次的极限，约为单调弯曲强度平均值的70%。
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 the5 /spl times/ 10/sup 4/ cycles at LNT, 70 MPa, was about 70% of the average value of the monotonic bending strength.