[9a-Z27-1~13] 11.2 Thin and thick superconducting films, coated conductors and film crystal growth

[9a-Z27-6] Dependence of joint temperature on microstructure of GdBa₂Cu₃O_y coated conductors

〇Ryo Teranishi¹, Tomohiro Miyajima¹, Yukio Sato¹, Kenji Kaneko¹, Valery Petrykin², Sergey Lee², Tatsunori Okada³, Satoshi Awaji³, Akiyoshi Matsumoto⁴ (1.Kyushu Univ., 2.SuperOx Japan, 3.Tohoku Univ., 4.MINS)

Keywords:superconductor, joint, crystallization

We have been fabricating jointed samples of GdBCO coated conductors were prepared via crystallization of precursor films under mechanical pressure. The precursor layers were deposited on base-GdBCO CC by a pulsed laser deposition method. In this work, influence of crystallization temperature on crystal phases of jointed area was investigated. X-ray diffraction analysis indicated that there is an appropriate temperature range to obtain high c-axis orientation. The GdBCO layers of both additional deposited layer and base-GdBCO CC were decomposed at the temperature of 1193 K.