Abstract
We have studied the effects of processing conditions and the initial compositions in Nd-Ba-Cu-O bulk superconductors on the field-trapping capability and the mechanical properties. Sintering the sample prior to the crystal growth was effective for the fabrication of a good quality sample with high trapped-fields. The optimization of Nd422 and Ag contents along with processing conditions led to an increase in both the field-trapping ability and mechanical properties. As a result, the trapped-field of Nd-Ba-Cu-O 30 mm in diameter reached 1.4 T at liquid nitrogen temperature. The average tensile strength and the Weibull coefficient exceeded 50 MPa and 13, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 117-137 |
| Number of pages | 21 |
| Journal | Ceramics International |
| Volume | 29 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2003 Jan 1 |
| Externally published | Yes |
Keywords
- B. Microstructure
- Bulk
- C. Superconductivity
- Nd-Ba-Cu-O
- Tensile strength
- Trapped-field
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Process Chemistry and Technology
- Surfaces, Coatings and Films
- Materials Chemistry