Influence of Indentation on the Critical Current of Nb3Sn Strands
Influence of Indentation on the Critical Current of Nb3Sn Strands
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DOI：
10.1016/j.phpro.2015.06.153
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Suwa Tomone;Nabara Yoshihiro;Takahashi Yoshikazu;Oshikiri Masayuki;Tsutsumi Fumiaki;Shibutani Kazuyuki;Nunoya Yoshihiko;Murakami Yukinobu;Miyashita Katsumi;K. Sim;S. P. Kwon
中科院分区：
文献类型：
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作者：
Suwa Tomone;Nabara Yoshihiro;Takahashi Yoshikazu;Oshikiri Masayuki;Tsutsumi Fumiaki;Shibutani Kazuyuki;Nunoya Yoshihiko;Murakami Yukinobu;Miyashita Katsumi;K. Sim;S. P. Kwon
日本原子能机构正在为热核实验堆的所有模块采购中央螺线管导体。Nb3Sn CS导体的超导性能必须承受60，000次电磁（EM）循环。短捻距导线的均流温度（Tcs）随电磁循环次数的增加而保持稳定，但短捻距和紧绞会增加热处理前股线接触点处的股线锯齿。对Nb_3Sn单股人工压痕的Ic测量结果表明，在临界压痕深度内，Ic几乎是常数。
The Japan Atomic Energy Agency (JAEA) is procuring Central Solenoid (CS) conductorsfor all modules forITER. The superconducting properties of the Nb3Sn CS conductors will have to sustain 60,000 electromagnetic (EM) cycles. The current sharing temperatures (Tcs) were stable with EM cycles in short twist pitch conductors.However, the short twist pitch and tight cabling increases indented strands at the contact point between strands before heat treatment. The results ofIcmeasurement on artificially indented Nb3Sn strands indicate thatIcwas almost constant within a critical depth of the indentations.