Abstract
The optimization of the sintering conditions of disk shaped bulk MgB 2 superconductors with respect to the trapped field is described. Series of samples were prepared by varying the sintering temperatures between 700 and 950 C. The temperature range was divided into three regions, namely the low (<750 C), medium (<825 C), and high (>850 C) temperature region. Scanning electron microscopy and X-ray diffraction indicated that homogenous single phase MgB2 bulks were produced in the medium sintering temperature range. At this processing temperature range the highest trapped field was also achieved. Samples of 20 mm in diameter and 7 mm thick produced at 775 C exhibited trapped field of 1.50 T at 20 K.
| Original language | English |
|---|---|
| Pages (from-to) | 85-88 |
| Number of pages | 4 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 494 |
| DOIs | |
| Publication status | Published - 2013 |
| Externally published | Yes |
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Keywords
- MgB
- Microstructure analysis
- Trapped field
- X-ray diffraction
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Energy Engineering and Power Technology
- Electronic, Optical and Magnetic Materials
Cite this
Optimization of the fabrication process for high trapped field MgB 2 bulks. / Miryala, Muralidhar; Ishihara, A.; Suzuki, K.; Fukumoto, Y.; Yamamoto, Y.; Tomita, M.
In: Physica C: Superconductivity and its Applications, Vol. 494, 2013, p. 85-88.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Optimization of the fabrication process for high trapped field MgB 2 bulks
AU - Miryala, Muralidhar
AU - Ishihara, A.
AU - Suzuki, K.
AU - Fukumoto, Y.
AU - Yamamoto, Y.
AU - Tomita, M.
PY - 2013
Y1 - 2013
N2 - The optimization of the sintering conditions of disk shaped bulk MgB 2 superconductors with respect to the trapped field is described. Series of samples were prepared by varying the sintering temperatures between 700 and 950 C. The temperature range was divided into three regions, namely the low (<750 C), medium (<825 C), and high (>850 C) temperature region. Scanning electron microscopy and X-ray diffraction indicated that homogenous single phase MgB2 bulks were produced in the medium sintering temperature range. At this processing temperature range the highest trapped field was also achieved. Samples of 20 mm in diameter and 7 mm thick produced at 775 C exhibited trapped field of 1.50 T at 20 K.
AB - The optimization of the sintering conditions of disk shaped bulk MgB 2 superconductors with respect to the trapped field is described. Series of samples were prepared by varying the sintering temperatures between 700 and 950 C. The temperature range was divided into three regions, namely the low (<750 C), medium (<825 C), and high (>850 C) temperature region. Scanning electron microscopy and X-ray diffraction indicated that homogenous single phase MgB2 bulks were produced in the medium sintering temperature range. At this processing temperature range the highest trapped field was also achieved. Samples of 20 mm in diameter and 7 mm thick produced at 775 C exhibited trapped field of 1.50 T at 20 K.
KW - MgB
KW - Microstructure analysis
KW - Trapped field
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=84884813820&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84884813820&partnerID=8YFLogxK
U2 - 10.1016/j.physc.2013.04.012
DO - 10.1016/j.physc.2013.04.012
M3 - Article
VL - 494
SP - 85
EP - 88
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
ER -