Abstract
Large single grain Y-Ba-Cu-O superconductors have significant potential for various industrial applications. However, large-grain Y-Ba-Cu-O experiences large forces due to its relatively low thermal conductivity during thermal cycles. The thermal stress arises mainly due to a large anisotropy in thermal conductivity between ab and c axes. In this paper, we attempted to measure the thermal stresses of large-grain Y-Ba-Cu-O during the cooling process from room temperature to 100 K using the strain gauges that are directly mounted onto the sample surface. It was found that the tensile strain increased along the c axis on cooling, which should be taken into account when handling large-grain samples.
| Original language | English |
|---|---|
| Pages (from-to) | 69-74 |
| Number of pages | 6 |
| Journal | Physica C: Superconductivity and its applications |
| Volume | 349 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2001 Jan 1 |
| Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
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Cite this
Miyamoto, T., Nagashima, K., Sakai, N., & Murakami, M. (2001). Measurements of the thermal stresses in large-grain Y-Ba-Cu-O superconductors. Physica C: Superconductivity and its applications, 349(1-2), 69-74. https://doi.org/10.1016/S0921-4534(00)01529-X