並列タイトル等Fabrication of Superconducting Thick Films by Transverse Spraying Pyrolysis
ヨコ ホウコウ フンム ネツブンカイ ニヨル チョウデンドウ アツマク ノ サクセイ
一般注記出版タイプ： VoR
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論文(Article)
A set of a transverse spraying apparatus and a small furnace was fabricated in order to forming YBa, Cu₃,O₇-₅ (YBCO) superconducting thick films. The spraying apparatus spouted fine partcles of a solution of mixed Y-, Ba-, and Cu-nitrates horizontally onto YSZ substrates, which was located at the center of the furnace and heated at various temperatures up to 800℃.Sprayed films were sintered at 930 ℃ following slow cooling-down in 0₂ gas flow. These films became thinner and finer as the substrate temperature Ts went up at spraying, Only samples prepared at Ts = 300℃~400℃ showed low roomtemperature resistances and high XRD (X-Ray Diffraction) peaks, which are corresponding to superconducting properties, According to the composition analysis of EPMA, there were very few Ba atoms compared with Cu, and contents of Y decreased for Ts higher than 500℃.It may be inferred that these composition descrepancies are attributed to flying stall of heavy atoms before arrival at the substrate keeping at high temperature,
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）