書誌事項
- タイトル別名
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- Superconducting Joint for REBCO-Coated Conductors without Oxidization Annealing via Low-temperature Synthesis Reaction Using Potassium Hydroxide
- スイサンカ カリウム ニ ヨル テイオン ゴウセイ ハンノウ オ リヨウ シタ サンソ アニール ショリ フヨウ ナ REBCO センザイ ノ チョウデンドウセツゴウ
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説明
<p>Recently, several novel techniques for creating superconducting joints between two REBCO-CCs have been suggested. These techniques include long-time oxidization annealing to compensate the oxygen deficiency of REBCO due to the high processing temperature. In this paper, a superconducting joint was achieved via a one-time heat treatment at the low temperature of 525ºC without oxidization annealing. The jointed GdBCO-CCs were prepared in three steps. The first step is that Eu–Ba–Cu–O raw material was placed between Ag-removed Gd123 layers of the CC. In the second step, the sample was mechanical pressurized using two plates of metal. Finally, the sample was heat-treated at 525ºC in KOH vapor. All steps were performed at ambient pressure. The jointed sample was bonded finely and showed Tconset = 76.7 K and Tczero = 57.5 K inclusive of the jointed region. From XRD observation of the jointed region in the samples, both GdBCO-CC and EuBCO-pressed materials contained incomplete RE123, RE247 and RE124 phases.</p>
収録刊行物
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- 低温工学
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低温工学 55 (4), 275-279, 2020-07-20
公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会)
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詳細情報 詳細情報について
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- CRID
- 1390566775157207552
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- NII論文ID
- 130007884264
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- NII書誌ID
- AN00333419
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- ISSN
- 18800408
- 03892441
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- NDL書誌ID
- 030568889
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可