Oxygen Out-Diffusion in Partially Melted YBa₂Cu₃Oy - 0.325Ag Superconductor at Reduced Oxygen Partial Pressure
Oxygen Out-Diffusion in Partially Melted YBa₂Cu₃Oy - 0.325Ag Superconductor at Reduced Oxygen Partial Pressure
- 주제(키워드) YBa₂Cu₃Oy - Ag (Y123-Ag) superconducting tape , chemical diffusion coefficient of oxygen out-diffusion (Dout) , oxygen partial pressure (PO2) , thermogravimetric analysis (TGA)
- 발행기관 대한금속·재료학회
- 발행년도 2008
- 총서유형 Journal
- UCI G704-000797.2008.14.6.016
- KCI ID ART001298069
- 본문언어 영어
초록/요약
In this study, we examined the chemical diffusion coefficient of oxygen out-diffusion (D out) in partially melted YBa₂Cu₃Oy (Y123)-Ag superconducting tape produced by the thermomechanical processing of the silverclad precursor (doped with 5 wt.% Ag) containing BaCuO2.5 at reduced oxygen partial pressure (PO2). The out value of Y123-Ag (O7.0 to O6.2), obtained by using the thermogravimetric relaxation technique at 950℃ and a PO2 of 0.28 kPa, was 1.0476 × 10-7 cm²/s.
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