TY - JOUR
T1 - Influence of microstructure on the pinning properties of Nd123
AU - Chikumoto, N.
AU - Yoshioka, J.
AU - Otsuka, M.
AU - Yoo, S. I.
AU - Murakami, M.
N1 - Funding Information:
This work was partially supported by NED0 for the R & D of Industrial Science and Technology Frontier Program.
PY - 1997/8
Y1 - 1997/8
N2 - Melt-textured Nd123 samples are heat-treated at high temperatures in various atmospheres. For the sample prepared in 1% O2-Ar, the decrease of Jc was observed after the heat-treatment, eventhough there is no change in Tc. This could be explained by the agglomeration of Nd-rich region (pinning center) during the heat treatment. On the other hand, the sample prepared in air showed the increase of Tc and Jc by the heat-treatment at 980 °C in low oxygen partial pressure (0.1% O2-Ar), which could be understood by the partial melting of the Nd-rich phase.
AB - Melt-textured Nd123 samples are heat-treated at high temperatures in various atmospheres. For the sample prepared in 1% O2-Ar, the decrease of Jc was observed after the heat-treatment, eventhough there is no change in Tc. This could be explained by the agglomeration of Nd-rich region (pinning center) during the heat treatment. On the other hand, the sample prepared in air showed the increase of Tc and Jc by the heat-treatment at 980 °C in low oxygen partial pressure (0.1% O2-Ar), which could be understood by the partial melting of the Nd-rich phase.
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U2 - 10.1016/S0921-4534(97)01243-4
DO - 10.1016/S0921-4534(97)01243-4
M3 - Article
AN - SCOPUS:0031212421
SN - 0921-4534
VL - 282
SP - 2295
EP - 2296
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - PART 4
ER -