Mechanical properties of Y123/Ag superconducting bulks

被引：7

作者：

Fujimoto, Hiroyuki ^{[1
]}

机构：

[1] Railway Tech Res Inst, Appl Supercond, Tokyo 1858540, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2006年 / 16卷 / 02期

关键词：

flexural stress; melt process; REBa2Cu3Ox high-temperature superconductors; surface roughness; Vickers hardness;

D O I：

10.1109/TASC.2006.870812

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 [电气工程]; 0809 [电子科学与技术];

摘要：

Mechanical properties are very important technical issues for industrial applications of high-Tc oxide superconductors. The oxide superconductors are known to have the intrinsic brittleness. Therefore, we cannot avoid the problem and should study and improve mechanical properties to achieve structural reliability for applications. In this study, flexural strength, surface roughness and hardness of melt-processed YBa2Cu3Ox (Y123) bulk materials with Y2BaCuO5 (Y211) particles and Ag are discussed. The results of flexural stress of REBa2Cu3Ox (RE123) bulk superconductors show the beneficial effect of Ag particles in the RE123 superconducting phase on strengthening and toughening the material. Surface roughness and hardness of the RE 123 materials provide useful information. The results imply that we should make progress in producing larger bulk materials with better mechanical properties for feasibility in large-scale applications.

引用

页码：1043 / 1046

页数：4

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