Alexander Usoskin, Burkhard Prause - CIRED · Bruker HTS A.Usoskin/ CIRED 2009, Prague June 9, 2009...

Bruker HTS A.Usoskin/ CIRED 2009, Prague June 9, 2009

Bruker HTS GmbH

Superconducting Materials:2nd HTS Generation,Status and Outlook

Alexander Usoskin, Burkhard Prause

Prague, 8-11 June 2009


Bruker HTS GmbH

Agenda for today

1. Bruker: Bruker Advanced Supercon :

Bruker HTS

2. 1G and 2G HTS tapes

3. Coated Conductors: Technological status and outlook

4. Performance: Currents in field, mechanical properties, etc.

5. Realistic Applications

7. Short Summary


Bruker HTS GmbH

Billerica, MA, USABillerica, MA, USAFreemont, CA, USAFreemont, CA, USAMadison, WI, USAMadison, WI, USA

RheinstettenRheinstetten,,GermanyGermany

FFäällanden,llanden,SwitzerlandSwitzerland

Tsukuba, JapanTsukuba, JapanWissembourg,Wissembourg,FranceFrance

• R&D

• Manufacturing

• Service

• Sales

Bruker´s major worldwide sites


Bruker HTS GmbH

NbTi

NbSn

Bi-2223

YBCO

The product range BEAS and BHTS


Bruker HTS GmbH5

Bruker HTS GmbH

Bruker HTS is the High Temperature Superconductor division of Bruker Advanced Supercon

Company headquarters is located in Hanau, while all research andproduction activities are located at advanced facilities in Alzenau.

The research and development teams consists of more than 30 people developing Bismuth (Bi) and Yttrium (Y)-based high temperature superconducting technologies and devices.

Bruker HTS provides industrial superconductors and application solutions to a wide range of customers.


Bruker HTS GmbH

Bruker HTS

• EHTS facility in Alzenau, Germany

• High Temperature Superconductors:

• 1st generation - Bi-conductors,

• 2nd generation - YBCO coated conductors


Bruker HTS GmbH

BiSCCO & YBCO CC wire designs

HTS: Bi2Sr2Ca2Cu3Oz

Polycristalline material with uniaxialtexture by thermo-mechanical treatment

Textured Bi-2223-Filaments in Silveralloy matrixTypical dimensions: 4 mm x 0.22 mm

HTS: Y1Ba2Cu3O7-δ

Textured YBCO thin film with shunt-layer on bi-axially oriented oxide-buffer-layer grown on polycrystalline stainless steel tape Typical cross-section:4 mm x 0.1 mm


Bruker HTS GmbH

BHTS processing route

deep

po

lish

ing

US

cle

an

ing

ABAD YSZ buffer

HR

-PLD

CeO

2

HR

-PLD

YB

CO

PV

DA

g o

r A

u

An

nealin

g

Cu

pla

tin

g

150µ

m

Vacuum, mbar 10-5 10-1 10-1 10-5


Bruker HTS GmbH

YBCO Coated Conductors: production route

YBCO (~1 µm)

YSZ Buffer (~1.5 µm)

SS-Substrate (100 µm), non-magnetic

CeO2 Buffer (~0.05 µm)

Au Protective/stabilizing layer (~0.2 µm)

Cu Shunt layer (~20 µm)

YBCO (~1 µm)






YBCO (~1 µm)






ABAD set-up

HR-PLD

Cu platingAu/Ag deposition

Currents: up to 400 A/mm2

2nd polishing step


Bruker HTS GmbH

YBCO Coated Conductors

HRPLD: 100m tape coated with YBCO

Steps of length up-scaling:12m CC tape – before 200540m CC tape – June 2006100m CC tape – Dec 20072000m CC tape - 2009


Bruker HTS GmbH

HR-PLD up-scaling


Bruker HTS GmbH

Cu Plating

1S

2SA

2SQS

Cu plating


Bruker HTS GmbH

CC tapes delivered for cable project SUPER3C(Lamination provided by Nexans)

More than 3km of ABAD tape was produced to deliver CC tapes for this project


Bruker HTS GmbH

Outlook: up-scaling goals

- New 6-zones HRPLD machineProcessing speed: 70-75 m/hUnit length of CC: 2300 mStatus: developed,

installation inprogress

- New ABAD machineProcessing speed: 35 m/hUnit length of CC: >2000 mStatus: development

to be finished in 2009


Bruker HTS GmbH

YBCO Coated Conductors

0

50

100

150

200

250

300

10 20 30 40 50 60 70 80 90 100

Co-ordinate along tape length [m]

Crit

ical

cur

rent

per

cm

wid

th [A

/cm

]

Current density: 2-3 MA/cm2

Critical currents: from 250 to 500 A/cm-w (77K, SF)e.g. 200 A in 4mm wide CC

Axial stress: 650 MPa

Bending radius: 6mm in each direction


Bruker HTS GmbH16

CC tapes plated with Cu: Mechanical Properties

0

50

100

150

200

250

-0,4 -0,2 0,0 0,2 0,4

1 / R , 1/mm

Cri

tical

cur

rent

, A

R=

-6m

m

R=

+6

mm

reversibility range

Axial stress: 500-650 MPaBending radius: 6mmHigh edge bending: R=0.5mTorsion: 30°/cm at 40N load in 4mm wide CC


Bruker HTS GmbH17

CC tapes: bending tests at NIST

80

100

120

140

160

180

200

220

240

260

-0,8 -0,6 -0,4 -0,2 0,0 0,2 0,4 0,6 0,8 1,0

Applied strain [%]

I c [A

]

555 A555 C

4mm wide CC-s;2 different samples of similar quality were measured.

(NIST & ZFW, Aug 2007)

4mm wide CC, Cu plated; Ic(strain) dependence exhibited a maximum at tensile strain of 0.4 %.

Critical current is about 240 A/cm-w in this maximum. This effect is caused by a pre-stress determined by a substrate form during film deposition.


Bruker HTS GmbH

Comparison with worldwide status

20 H||ab BHTS

H||c BHTS

SP

SP

Y. Chen, Y.Y. Xie, V. SelvamanickamSuper Power: CCA'08, D2‐12.

A. Xu, Y. Viouchkov, C. Tarantini, V. Griffin, Jun Lu, J. Jaroszynski, D. Larbalestier, NHMFL Tallahassee


Bruker HTS GmbH

AC losses

AC losses:4 mW/m at I=50 Awithout

filamentization !


Bruker HTS GmbH

Coated conductors: Worldwide status


Bruker HTS GmbH

Comparison of metallic substrates

axial stress ferromagn. Production costs, a.u.

RABiTS tape 130 MPa yes highest

Hastelloy >700 MPa no >20 Euro/kAm

Stainless 650-700 MPa no ~0.5 Euro/kAmsteel


Bruker HTS GmbH

HTS Application - NMR

Nuclear Magnetic Resonance (NMR)

HTS enable NMR systems to blast thetechnical limits in resolution of today‘s NMR systems.By using HTS insert coils the magnetic fieldrange and therefore the resolution of NMR systems can be expaned.

22


Bruker HTS GmbH

benefits:

• smaller volume/

• higher energy,

• voltage,

• volume density

• lower loss

• longer transmission lengths

possible

• no external fields

• no cooling oil30 m long power cable based on Bruker HTS YBCO tapes („SUPER3C“ cable)

23

SUPER3C Cable based on BRUKER-HTSCoated Conductors

Assembled by Nexans


Bruker HTS GmbH24

Inductive shielded and resistive SFCL

SUPERPOLI FCL-5.5-50 module based on YBCO-coated stainless steel tubes and Au shunt layer.

Nominal (non-limited) current 2 500 A (ampl.)Nominal power losses ~ 0.1 WFault current, max. 50 000 A (ampl.)Peak power at fault current: 150 000 W

∅ 55 mm

500 mm


Bruker HTS GmbH25

HTS Application - SFCL

Bruker Advanced Supercon 10kV SFCL Demonstrator

00 5 time [ms]15

50

100

-50

-100

curre

nt [

kA]

0.5 msfault current

limitedcurrent

nominal current10 20

benefits:

• Over 100 times faster response than conventional technology

• 10 to 20 times shorter recovery time• Time adjustable response functions• non-destructing switching, self recovery• easy to bundle• tailorable to fit your requirements• low loss at nominal current• allow downsizing of overload capability of the grid


Bruker HTS GmbH

YBCO Coated Conductors: Short Summary

26

• Technology of HTS Coated Conductors is available in Europe;

• First European HTS cable, SUPER3C, Nexans, is based on these tapes; Up-scaling of manufacturing line is in progress

• First product utilizing Bruker HTS 2G tapes seems to be superconducting fault current limiter


Bruker HTS GmbH

Supporting Foils


Bruker HTS GmbH28

Kinetics of quench and recovery: inductive SFC

I

UFCL

1ms

TECHNOLOGYCENTRE


Bruker HTS GmbH29

Kinetics of quench and recovery: inductive SFC

-2

0.6ms

<0.2ms

20 40 60 80 00

1

2

-1

Cur

rent

(kA

)

Time (ms)

Kinetics of quench and recovery in SFCL with a shielding module exhibiting 0.9 kA critical current.

Current versus time at quench event with duration of 31 ms. Prospective current of 30 kA (peak value) is limited to 1.2 kA (second peak).

TECHNOLOGYCENTRE

Alexander Usoskin, Burkhard Prause - CIRED · Bruker HTS A.Usoskin/ CIRED 2009, Prague June 9, 2009...

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Transcript of Alexander Usoskin, Burkhard Prause - CIRED · Bruker HTS A.Usoskin/ CIRED 2009, Prague June 9, 2009...