TY - JOUR
T1 - Effect of Ag addition on cold-seeded melt-growth of Gd-Ba-Cu-O superconductor using Nd123 seed crystal
AU - Nariki, S.
AU - Sakai, N.
AU - Inoue, K.
AU - Murakami, M.
N1 - Funding Information:
This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.
PY - 2003/10
Y1 - 2003/10
N2 - We investigated the effect of Ag addition on cold-seeded melt-growth of Gd-Ba-Cu-O superconductors using Nd123 seed crystal. We found that a small addition of Ag enlarged the temperature window for stable single-grain growth, since the decomposition temperature of Gd123 decreased with Ag addition. However, Ag addition of more than 5 wt.% restricted the temperature window due to the melting of Nd123 seed crystal which reacted with Ag. The employment of a double layered precursor, which composed of two layers with and without Ag, solved the problem of the diffusion of Ag into the seed crystal. As a result, single grain Gd-Ba-Cu-O/Ag bulks could be obtained in a wide temperature window.
AB - We investigated the effect of Ag addition on cold-seeded melt-growth of Gd-Ba-Cu-O superconductors using Nd123 seed crystal. We found that a small addition of Ag enlarged the temperature window for stable single-grain growth, since the decomposition temperature of Gd123 decreased with Ag addition. However, Ag addition of more than 5 wt.% restricted the temperature window due to the melting of Nd123 seed crystal which reacted with Ag. The employment of a double layered precursor, which composed of two layers with and without Ag, solved the problem of the diffusion of Ag into the seed crystal. As a result, single grain Gd-Ba-Cu-O/Ag bulks could be obtained in a wide temperature window.
KW - Ag
KW - Bulk
KW - Cold-seeding
KW - Gd-Ba-Cu-O
KW - Melt processing
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U2 - 10.1016/S0921-4534(03)00799-8
DO - 10.1016/S0921-4534(03)00799-8
M3 - Conference article
AN - SCOPUS:0041782782
SN - 0921-4534
VL - 392-396
SP - 468
EP - 472
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - PART 1
T2 - Proceedings of the 15th International Symposium on Superconduc
Y2 - 11 November 2002 through 13 November 2002
ER -