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Oxygen Out-Diffusion in Partially Melted YBa2Cu3Oy-0.325Ag Superconductor at Reduced Oxygen Partial Pressure
- Authors
- Kim, Ju-Hyung; Lee, Haigun
- Issue Date
- 12월-2008
- Publisher
- KOREAN INST METALS MATERIALS
- Keywords
- YBa2Cu3Oy - Ag (Y123-Ag) superconducting tape; chemical diffusion coefficient of oxygen out-diffusion ((D)over-tilde(out)); oxygen partial pressure (P-O2); thermogravimetric analysis (TGA)
- Citation
- METALS AND MATERIALS INTERNATIONAL, v.14, no.6, pp.673 - 678
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- METALS AND MATERIALS INTERNATIONAL
- Volume
- 14
- Number
- 6
- Start Page
- 673
- End Page
- 678
- ISSN
- 1598-9623
- Abstract
- In this study, we examined the chemical diffusion coefficient of oxygen out-diffusion ((D) over tilde (out)) in partially melted YBa2Cu3Oy (Y123)-Ag superconducting tape produced by the thermomechanical processing of the silver-lad precursor (doped with 5 wt.% Ag) containing BaCuO2.5 at reduced oxygen partial pressure (P-O2). The (D) over tilde (out) value of Y123-Ag (O-7.0 to O-6.2), obtained by using the thermogravimetric relaxation technique at 950 degrees C and a P-O2 of 0.28 kPa, was 1.0476 X 10(-7) cm(2)/s.
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