PowerPoint PresentationB.A.Glowacki
UNIVERSITY OF CAMBRIDGE
Superconductivity and the electricity supply industries
27th November 2003, London
B.A.Glowacki
Market and material projections: (a) Price/performance of NbTi, Bi2223 and YBCO conductors versus years; (b) Projections of the LTS and HTS market which is sheared between electronics, power, industrial processing, medical care and transportation. 1995 estimation conducted at International Superconductivity Industry Summit, Yamanashi 1996, numbers corrected according to data in early 2003 (solid lines). Corrected projection conducted at Cambridge University in 2003.
Military use of expensive Coated Conductors is different from civilian market.
Development of YBCO coated conductor is a technology driver, not a Cu or Fe replacement.
1. LTS & HTS market prediction
Nb3Al by rapid Quenching is ~4 times more expensive than bronze Nb3Sn / VSi, VGa and MgB2 ate good candidates for superconductor in Nuclear physics applications, because the decay time is only few years whereas, all Nb-based superconductors require 100’s years
Applied Superconductivity Research - University of Cambridge
B.A.Glowacki
Current x length prediction vs time? LTS or HTS or MTS ?
Projections of the LTS and HTS market which is sheared between: electronics, power, industrial processing, medical care and transportation. 1996 estimation conducted at International Superconductivity Industry Summit, Yamanashi 1996, numbers corrected according to data in early 2003 (solid lines).
TODAY
B.A.Glowacki
Transport critical current density vs magnetic field:
(a) low temperature superconductors and MgB2
(b) Low temperature superconductors Nb-Al.
(a)
(b)
The performance of MgB2 can be only compared with Nb based conductors at 4.2K
Applied Superconductivity Research - University of Cambridge
B.A.Glowacki
MRI
NMR
Nb-Ti
Cu
Cu
Nb3Sn
NbTi
Reassembling is conducted in the stages
Applied Superconductivity Research - University of Cambridge
B.A.Glowacki
B.A.Glowacki
Performance of LTc, MTc and HTc Superconducting conductors
Transport critical current density vs magnetic field: (a) low and medium temperature superconductors 1, (b) high temperature superconductors.
The superconducting conductors are manufactured by Extrusion, swaging, drawing methods.
Reassembling is conducted in the stages
Applied Superconductivity Research - University of Cambridge
B.A.Glowacki
Applications
Reassembling is conducted in the stages
Applied Superconductivity Research - University of Cambridge
B.A.Glowacki
Ta 2-10 wt.% ex-situ and in -situ bulks; high-pressure synthesis. @ 20K
APPLICATIONS
B.A.Glowacki
Compositional Applicability of YBaCuO conductors and bulk materials
Contour lines of Tc, Jc and normalised diamagnetic signal intensity on the fragment of the Y2BaCuO5-BaCu2-CuO phase diagram marked in
(a) critical temperature Tc (K);
(b) critical current density Jc (Acm-2) at 77K and 0 Tesla;
(c) normalised diamagnetic signal intensity.
Purification of the Grain Boundaries by excess of Y (red dot)
Applied Superconductivity Research - University of Cambridge
B.A.Glowacki
The superconducting conductors are manufactured by Extrusion, swaging, drawing methods.
Reassembling is conducted in the stages
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