Post on 14-Aug-2019
1 8. Braunschweiger Supraleiterseminar 16-17 June 2015
SuperOx 2G-HTS wire:
production, applications and outlook
Vadim Amelichev
SuperOx, Moscow, Russia
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SuperOx
• First company founded in 2006
• 2012: starts production of 2G HTS wire in Russia and Japan
• Collaborates with leading companies to create
superconducting equipment
8. Braunschweiger Supraleiterseminar 16-17 June 2015
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2006
2011
2012
2013
2015
used in current production
R&D
abandoned route
Technology profile
MOCVD
R&D
RABiTS
MOD
R&D SDP
R&D PLD
Sputter ElChem
IBAD
8. Braunschweiger Supraleiterseminar 16-17 June 2015
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Focus on PVD methods
SuperOx Japan LLC (Tokyo)
● RF sputtering: buffer layers
● IBAD-MgO
● PLD: CeO2 & HTS
● DC sputtering: silver
● Ic measurements
220 sqm / 5 employees
16-17 June 2015 8. Braunschweiger Supraleiterseminar
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Focus on chemistry and customisation
SuperOx (Moscow)
● Electropolishing
● Silver DC sputtering
● Copper electroplating
● Solution deposition (MOD & SDP)
● MOCVD (R&D)
● Polyimide insulation
● Solder plating & lamination
● Quality testing, etc.
850 sqm / 20 employees
8. Braunschweiger Supraleiterseminar 16-17 June 2015
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SuperOx 2G HTS tape
Dual-Chamber:
PLD system
Single Chamber:
RF sputter + IBAD
Hastelloy C276
Al2O3
Y2O3 or LaMnO3
IBAD - MgO
LaMnO3
CeO2:RE
GdBCO
Ag
Cold rolled & electro polished
(60-100 microns)
RF sputtering (50 nm)
DC sputtering (custom thickness)
PLD-2 (1-3 microns)
PLD-1 (100-200 nm)
IBAD with RF sputtering (5-7 nm)
RF sputtering (30-50 nm)
RF sputtering (30-50 nm)
Finish Customised finish tailored to application
8. Braunschweiger Supraleiterseminar 16-17 June 2015
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Buffer layers texture
16-17 June 2015 8. Braunschweiger Supraleiterseminar
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GdBCO texture
8. Braunschweiger Supraleiterseminar 16-17 June 2015
(103) GBCO -scan
FWHM = 3.5
(103) GBCO -scan
FWHM = 3.5
(005) GBCO w-scan
FWHM = 1.3
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SuperOx 2G HTS tape
Long tapes with critical current of 500 A/12 mm available
8. Braunschweiger Supraleiterseminar 16-17 June 2015
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Performance in field
8. Braunschweiger Supraleiterseminar 16-17 June 2015
0.1 T
0.2 T
0.3 T
0.4 T 0.5 T
1.0 T
1.5 T
No artificial pinning centres
Very isotropic in-field behaviour
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Short Summary
Customization: ● Any silver thickness
● Any copper thickness
● Lamination
● Isolation
● Solder-plating
● Joints
● … we consider any other options
Parameter Value
Single piece length up to 500 m
Substrate thickness 60 or 100 microns
Width 4 mm 12 mm
Ic (77K, sf) 100-150 A 300-500 A
Ic uniformity ±10% ±10%
8. Braunschweiger Supraleiterseminar 16-17 June 2015
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Radiotherapy Radiotherapy
Variety of applications of 2G HTS wires
2G HTS Wire
Fault Current
Limiters
Fault Current
Limiters
Power cables Power cables
Current
Leads
Current
Leads
ELECTRIC ENERGY SCIENCE & INDUSTRY
High Field
Magnets
High Field
Magnets
HEALTHCARE
MRI MRI
SPECIAL APPLICATIONS
MagLev MagLev Plasma
Engines
Plasma
Engines
8. Braunschweiger Supraleiterseminar 16-17 June 2015
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Silver Magnetron Sputtering
DC magnetron (Wmax = 6 kW)
Single piece length up to 500 m
Suitable for 12 and 4 mm widths
Automatic arc suppression system
16-17 June 2015 8. Braunschweiger Supraleiterseminar
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Copper electroplating
■ Surround copper electroplating
■ Single piece length up to 2 km
■ Speed up to 50 m/h for 20 micron copper per side
■ No dog-bone effect
■ Any thickness in range of 1-100 mm available
1015 m of 4 mm HTS tape
16-17 June 2015 8. Braunschweiger Supraleiterseminar
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Solder plating
■ Various solders can be applied on the tape surface on request
■ Solder plating directly on silver available
~ 200oC PbSn
~ 120oC SnIn
~ 100oC PbBiSn
12 mm PbSn-plated HTS tape
8. Braunschweiger Supraleiterseminar 16-17 June 2015
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2G HTS Wire Blocks for Magnetic Levitation
■ blocks made from 2G HTS wires provide stable levitation over PM
■ viable alternative to HTS bulks – any form and size possible
By now, SuperOx has built 2G HTS blocks with levitating force of over 100 kg
16-17 June 2015 8. Braunschweiger Supraleiterseminar
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Lamination, stacks
8. Braunschweiger Supraleiterseminar 16-17 June 2015
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Low resistance joints of any type
20 nOhm @ 77K
40 mm length
12 mm width
20 nOhm @ 77K
40 mm length
12 mm width
8. Braunschweiger Supraleiterseminar 16-17 June 2015
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Polyimide Coating
•Surround Polyimide (PI) coating •Modified dip coating •Thin (5-20 mm), uniform layer •Advanced alternative to Kapton wrapping
Variable thickness
PI coating
8. Braunschweiger Supraleiterseminar 16-17 June 2015
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Surround polyimide insulation
Thin, continuous, and regular insulating coating
Breakdown voltage: up to 1000 V
8. Braunschweiger Supraleiterseminar 16-17 June 2015
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2G HTS Cable for Power Applications
■ in 2013, two model cables were built in cooperation with Russian cable
Institute (VNIIKP) - 3.0 кА and 4.5 кА
Low level of AC losses confirmed
0
0.5
1.0
1.5
2.0
0 1 2 3 4 5
Outer layer I
c=4.36 kA, n=18.6
Inner Layer Ic=4.45 kA, n=11.6
Total current, kA
Ele
ctr
ica
l fie
ld, mV
/cm
8. Braunschweiger Supraleiterseminar 16-17 June 2015
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AC Losses in 1G and 2G HTSC wires
16-17 June 2015 8. Braunschweiger Supraleiterseminar
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Röbel cable
8. Braunschweiger Supraleiterseminar 16-17 June 2015
* in collaboration with Karlsruhe Institute of Technology (Anna Kario et al.)
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Inorganic coating (new!)
Polyimide
PI+Al2O3
8. Braunschweiger Supraleiterseminar 16-17 June 2015
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Thank you for your attention!
Vadim Amelichev SuperOx
Nauchnyi pr. 20-2
Moscow, Russia
www.superox.ru/en
8. Braunschweiger Supraleiterseminar 16-17 June 2015