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核工业西南物理研究院 ›› 2024, Vol. 44 ›› Issue (4): 388-393.DOI: 10.16568/j.0254-6086.202404003

• 核聚变工程 • 上一篇    下一篇

Nb3Sn 超导磁体绝缘用 HS/6 玻璃纤维改性实验研究

熊秋月 1, 2,刘志宏*1,孙 静 1, 2,陈文革 3,闫朝辉 1, 2   

  1. (1. 中国科学院合肥物质科学研究院等离子体物理研究所,合肥 230031;2. 中国科学技术大学,合肥 230026;
    3. 中国科学院合肥物质科学研究院强磁场科学中心,合肥 230031)
  • 收稿日期:2021-05-17 修回日期:2024-08-28 出版日期:2024-12-15 发布日期:2024-12-10
  • 作者简介:熊秋月(1997-),女,河南信阳人,硕士研究生,材料工程专业。
  • 基金资助:
    中国科学院合肥大科学中心重点研发项目(Y95CTD1192);安徽省自然科学基金(1808085ME110)

Experimental study on modification of HS/6 glass fiber for insulation of Nb3Sn superconducting magnet

XIONG Qiu-yue1, 2, LIU Zhi-hong1, SUN Jing1, 2, CHEN Wen-ge3, YAN Chao-hui1, 2   

  1. (1. Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031;
    2. University of Science and Technology of China, Hefei 230026;
    3. High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031)
  • Received:2021-05-17 Revised:2024-08-28 Online:2024-12-15 Published:2024-12-10

摘要: 为提高 HS/6 高强玻璃纤维复合材料的电绝缘性能以满足 Nb3Sn 超导磁体的使用要求,对 HS/6 高强玻璃纤维进行除碳和表面改性处理。研究发现,经过 500℃/4h 的除碳工艺后,HS/6 高强玻璃纤维表面的碳含量降低了约 80%,随后采用质量比为 8:100 的棕榈酸溶液进行表面改性处理,改性处理后的 HS/6 高强玻璃纤维表面的碳含量较除碳纤维的提高了26.93%。改性处理后的 HS/6 高强玻璃纤维的力学性能比仅经过除碳处理的得到了显著提升,其中,拉伸强度提高约 10%,层间剪切强度提高约 40%,且耐压强度较好,能够满足 Nb3Sn 超导磁体的使用需求。

关键词: Nb3Sn 超导磁体, 玻璃纤维, 除碳工艺, 表面改性

Abstract: The decarbonization and surface modification treatments of HS/6 glass fibers were performed to promote their electrical insulation performance to meet the requirements for use in Nb3Sn superconducting magnets. The results show that the carbon content on the surface of the HS/6 high-strength glass fibers was reduced by approximately 80% after a decarbonization process at 500℃ for 4 hours and the carbon content on the surface of HS/6 high-strength glass fibers, which were treated by palmitic acid with a mass ratio of 8:100 for surface modification after decarburizing, increased by 26.93% compared to that of the decarburized fibers. This modification significantly improved the mechanical properties of the HS/6 high-strength glass fibers more than the decarbonization ones with the tensile strength increased by approximately 10% and interlaminar shear strength improved by about 40%, and their compressive strength was also to meet the requirements for Nb3Sn superconducting magnets.

Key words: Nb3Sn superconducting magnets, Glass fiber, Removal of carbon process, Surface modification

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