Thermal properties of impregnating materials for stable superconducting magnets
Thermal properties of impregnating materials for stable superconducting magnets
复制标题
稳定超导磁体浸渍材料的热性能
DOI：
10.1109/77.614452
复制
发表时间：
1997
影响因子：
1.8
通讯作者：
T. Okada
中科院分区：
文献类型：
--
作者：
K. Seo;M. Morita;H. Yoshimura;S. Nishijima;T. Okada
用碳糊加热器精确测量了超导线材的最小失超能。在重负载SC线材的正常产生之前观察热行为以确定淬火。我们了解到，一旦产生正常区域，无论周围条件如何，它都应该迅速传播。然而，当通过在SC线周围使用某些材料来防止淬火前的局部温度升高时，MQE将增加。例如，当SC导线外部发生干扰时，将需要浸渍材料中的高热扩散性或导线绝缘中的低导热性。在上一篇文章中，我们展示了搪瓷绝缘对提高稳定性的影响。因此，在这项研究中，我们研究MQE和浸渍材料的热性能之间的关系。选择了几种浸渍材料，并从扩大MQE的角度比较了它们的热性能。我们一直在寻找具有改善稳定性所需的热性能的浸渍材料。
The minimum quench energies (MQEs) of superconducting (SC) wires have been measured precisely by means of a 'Carbon Paste Heater'. The thermal behavior just before the normal generation of the heavy loaded SC wire was observed to determine the quenching. We learned that once a normal region is produced, it should spread rapidly regardless of the surrounding conditions. The MQE, however, would increase when a local temperature rise before quenching is prevented by using certain materials around the SC wire. For example, high thermal diffusivity in impregnating materials or low thermal conductivity in wire insulation will be needed when disturbances occur outside of the SC wires. In the previous paper, we showed the effects of enamel insulation for improving stability. Thus, in this study, we examine the relation between MQE and the thermal properties of the impregnating material. Several kinds of impregnating materials were selected and the thermal properties are compared with enlarging MQE in mind. We have searched for an impregnating material that has the thermal property required for improved stability.