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Improvement of crit...
Improvement of critical current density in the Bi-Pb-Sr-Ca-Cu-O system through hot isostatic pressing
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- Dou, S.X. (författare)
- School of Materials Science and Engineering, University of New South Wales
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- Liu, H.K. (författare)
- School of Materials Science and Engineering, University of New South Wales
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- Apperley, M.A. (författare)
- School of Materials Science and Engineering, University of New South Wales
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- Song, K.H. (författare)
- School of Materials Science and Engineering, University of New South Wales
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- Sorrell, C.C. (författare)
- School of Materials Science and Engineering, University of New South Wales
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- Easterling, Kenneth E. (författare)
- Luleå tekniska universitet
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- Niska, John (författare)
- Luleå tekniska universitet
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- Guo, S.J. (författare)
- Luleå tekniska universitet
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(creator_code:org_t)
- 1990
- 1990
- Engelska.
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Ingår i: Physica. C, Superconductivity. - 0921-4534 .- 1873-2143. ; 167:5-6, s. 525-528
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The effects of hot isostatic pressing (HIPing) on densification and the superconducting properties of the Bi-Pb-Sr-Ca-O system were investigated. A relative density up to 95% and a critical current density greater than 1100 A/cm2 at 77 K were achieved through HIPing at 650°C for 2 h under 200 MPa argon. Under these conditions, the product gave a value of Jc four times that without HIPing. To was unaffected by HIPing for samples encapsulated with a combination of glass and silver tubes. However, To was suppressed from 103 K to 86 K for samples encapsulated with stainless steel and silver tubes while Jc increased from 260 A/ cm2 to 1086 A/cm2 during HIPing, indicating that the weak links were significantly improved. A new minor phase, having a composition of Bi/Pb/Sr/Ca/Cu=0.58/2.8/3.0/2.1/1.1, was observed in HIPed samples but its effect on Jc is not clear
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Nyckelord
- Engineering Materials
- Materialteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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