Mechanical properties of bulk superconductors with resin impregnation
Mechanical properties of bulk superconductors with resin impregnation
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DOI：
10.1088/0953-2048/15/5/333
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发表时间：
2002-05-01
影响因子：
3.6
通讯作者：
Murakami, M
中科院分区：
文献类型：
--
作者：
Tomita, M;Murakami, M
用三点弯曲试验研究了Y-Ba-Cu-O合金棒在浸渍和未浸渍树脂时的力学性能。在一个巨大的熔体生长块中，从不同位置以不同的方向切割试样。根据位置和载荷方向，Y-Ba-Cu-O棒的弯曲强度略有差异。我们已经证实，块体YBCO的强度可以提高两倍以上，使用树脂浸渍。此外，在较低的温度下的机械强度的增强是更大的树脂浸渍的样品，大概是由于环氧树脂本身的强度的强烈的温度依赖性，这也是有益的实际应用中的散装样品与树脂浸渍。
We have studied the mechanical properties of Y-Ba-Cu-O rods with and without resin impregnation using a three-point bending test. The specimens were cut from various locations with different orientations in a massive melt-grown block. There were slight differences in the flexural strengths in the Y-Ba-Cu-O rods depending on the location and the load direction. We have confirmed that the strengths of bulk YBCO can be enhanced by more than two times using resin impregnation. In addition, the enhancement of the mechanical strength at lower temperatures is greater in resin-impregnated samples, presumably due to a strong temperature dependence of the strength of the epoxy resin itself, which is also beneficial for practical applications of bulk samples with resin impregnation.