Evidence of incomplete annealing at 800 °C and the effects of 120 °C baking on the crystal orientation and the surface superconducting properties of cold-worked and chemically polished Nb

Sung, Z. -H.; Dzyuba, A.; Lee, P. J.; Larbalestier, D C; Cooley, L. D.

doi:10.1088/0953-2048/28/7/075003

Title: Evidence of incomplete annealing at 800 °C and the effects of 120 °C baking on the crystal orientation and the surface superconducting properties of cold-worked and chemically polished Nb

Journal Article · Wed Jul 01 00:00:00 EDT 2015 · Superconductor Science and Technology

DOI:https://doi.org/10.1088/0953-2048/28/7/075003· OSTI ID:1179688

Sung, Z. -H. ^[1]; Dzyuba, A. ^[2];

^[1];

^[1]; Cooley, L. D. ^[3]

Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Novosibirsk State Univ., Novosibirsk (Russian Federation)
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

High-purity niobium rods were cold-worked by wire-drawing, followed by various combinations of chemical polishing and high-vacuum baking at 120 °C or annealing at 800 °C in order to better understand changes to the surface superconducting properties resulting from typical superconducting radio-frequency cavity processing. AC susceptibility measurements revealed an enhanced upper transition T_c at ~ 9.3–9.4 K in all samples that was stable through all annealing steps, a value significantly above the accepted T_c of 9.23 K for pure annealed niobium. Corresponding elevations were seen in the critical fields, the ratio of the surface critical field H_c3 to the bulk upper critical field H_c2 rising to 2.3, well above the Ginzburg–Landau value of 1.695. Orientation imaging revealed an extensive dislocation rich sub-grain structure in the as-drawn rods, a small reduction of the surface strain after baking at 120 °C, and a substantial but incomplete recrystallization near the surface after annealing at 800 °C. We interpret these changes in surface superconducting and structural properties to extensive changes in the near-surface interstitial contamination produced by baking and annealing and to synergistic interactions between H and surface O introduced during electropolishing and buffered chemical polishing.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Florida State Univ., Tallahassee, FL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: SC0009960

OSTI ID:: 1179688

Journal Information:: Superconductor Science and Technology, Vol. 28, Issue 7; ISSN 0953-2048

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 11 works

Citation information provided by
Web of Science

References (43)

Achievement of in the superconducting nine-cell cavities for TESLA Lilje, L.; Kako, E.; Kostin, D. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 524, Issue 1-3, p. 1-12 https://doi.org/10.1016/j.nima.2004.01.045	journal	May 2004
Superconducting Radio-Frequency Technology R&D for Future Accelerator Applications Reece, Charles E.; Ciovati, Gianluigi Reviews of Accelerator Science and Technology, Vol. 05 https://doi.org/10.1142/S1793626812300113	journal	January 2012
The role of near-surface dislocations in the high magnetic field performance of superconducting niobium cavities Romanenko, A.; Padamsee, H. Superconductor Science and Technology, Vol. 23, Issue 4 https://doi.org/10.1088/0953-2048/23/4/045008	journal	March 2010
Involvement of hydrogen-vacancy complexes in the baking effect of niobium cavities Visentin, B.; Barthe, M. F.; Moineau, V. Physical Review Special Topics - Accelerators and Beams, Vol. 13, Issue 5 https://doi.org/10.1103/physrevstab.13.052002	journal	May 2010
Dependence of the microwave surface resistance of superconducting niobium on the magnitude of the rf field Romanenko, A.; Grassellino, A. Applied Physics Letters, Vol. 102, Issue 25 https://doi.org/10.1063/1.4812665	journal	June 2013
Evaluation of the propensity of niobium to absorb hydrogen during fabrication of superconducting radio frequency cavities for particle accelerators Ricker, Re; Myneni, Gr Journal of Research of the National Institute of Standards and Technology, Vol. 115, Issue 5 https://doi.org/10.6028/jres.115.025	journal	September 2010
Stress measurements during the oxidation of tantalum and niobium Pawel, R. E.; Campbell, J. J. Acta Metallurgica, Vol. 14, Issue 12 https://doi.org/10.1016/0001-6160(66)90035-6	journal	December 1966
Superabundant vacancy formation in Nb–H alloys; resistometric studies Koike, Hideyuki; Shizuku, Yoshiyuki; Yazaki, Akio Journal of Physics: Condensed Matter, Vol. 16, Issue 8 https://doi.org/10.1088/0953-8984/16/8/017	journal	February 2004
Hydrogen-induced defects in bulk niobium Čížek, Jakub; Procházka, Ivan; Bečvář, František Physical Review B, Vol. 69, Issue 22 https://doi.org/10.1103/PhysRevB.69.224106	journal	June 2004
Hydrogen-vacancy complexes in electron-irradiated niobium Čížek, Jakub; Procházka, Ivan; Daniš, Stanislav Physical Review B, Vol. 79, Issue 5 https://doi.org/10.1103/PhysRevB.79.054108	journal	February 2009
Elastic recoil detection studies of near-surface hydrogen in cavity-grade niobium Romanenko, A.; Goncharova, L. V. Superconductor Science and Technology, Vol. 24, Issue 10 https://doi.org/10.1088/0953-2048/24/10/105017	journal	September 2011
Proximity breakdown of hydrides in superconducting niobium cavities Romanenko, A.; Barkov, F.; Cooley, L. D. Superconductor Science and Technology, Vol. 26, Issue 3 https://doi.org/10.1088/0953-2048/26/3/035003	journal	January 2013
ASTM Standard B393-09e1: Standard Specification for Niobium and Niobium Alloy Strip, Sheet, and Plate (Withdrawn 2018) American Society for Testing and Materials (ASTM) https://doi.org/10.1520/B0393-09E01	standard	May 2018
The trapping of hydrogen in niobium by nitrogen interstitials Pfeiffer, G.; Wipf, H. Journal of Physics F: Metal Physics, Vol. 6, Issue 2 https://doi.org/10.1088/0305-4608/6/2/013	journal	February 1976
Trapping of hydrogen by oxygen and nitrogen impurities in niobium, vanadium and tantalum Shirley, A. I.; Hall, C. K.; Prince, N. J. Acta Metallurgica, Vol. 31, Issue 7 https://doi.org/10.1016/0001-6160(83)90193-1	journal	July 1983
Anelastic studies of hydrogen diffusion in niobium Baker, C.; Birnbaum, H. K. Acta Metallurgica, Vol. 21, Issue 7 https://doi.org/10.1016/0001-6160(73)90143-0	journal	July 1973
Isotope effects on the motion of O-H clusters in Nb Mattas, R. F.; Birnbaum, H. K. Acta Metallurgica, Vol. 23, Issue 8 https://doi.org/10.1016/0001-6160(75)90011-5	journal	August 1975
Solute trapping of hydrogen in niobium; symmetry of the O-H pair Zapp, P. E.; Birnbaum, H. K. Acta Metallurgica, Vol. 28, Issue 9 https://doi.org/10.1016/0001-6160(80)90083-8	journal	September 1980
Nitrogen and argon doping of niobium for superconducting radio frequency cavities: a pathway to highly efficient accelerating structures Grassellino, A.; Romanenko, A.; Sergatskov, D. Superconductor Science and Technology, Vol. 26, Issue 10 https://doi.org/10.1088/0953-2048/26/10/102001	journal	August 2013
Anomalous heat capacities of niobium and tantalum below 1 K Sellers, G. J.; Anderson, A. C.; Birnbaum, H. K. Physical Review B, Vol. 10, Issue 7 https://doi.org/10.1103/PhysRevB.10.2771	journal	October 1974
Nitrogen-Hydrogen Interstitial Pair in Niobium as a New System Showing Atomic Tunneling Morkel, C.; Wipf, H.; Neumaier, K. Physical Review Letters, Vol. 40, Issue 14 https://doi.org/10.1103/PhysRevLett.40.947	journal	April 1978
On the oxidation and on the superconductivity of niobium Halbritter, J. Applied Physics A Solids and Surfaces, Vol. 43, Issue 1 https://doi.org/10.1007/BF00615201	journal	May 1987
Thermal effect on the oxides on Nb(100) studied by synchrotron-radiation x-ray photoelectron spectroscopy Ma, Qing; Ryan, P.; Freeland, J. W. Journal of Applied Physics, Vol. 96, Issue 12 https://doi.org/10.1063/1.1809774	journal	December 2004
X-ray investigation of subsurface interstitial oxygen at Nb/oxide interfaces Delheusy, M.; Stierle, A.; Kasper, N. Applied Physics Letters, Vol. 92, Issue 10 https://doi.org/10.1063/1.2889474	journal	March 2008
Analysis of the medium field Q-slope in superconducting cavities made of bulk niobium Ciovati, G.; Halbritter, J. Physica C: Superconductivity, Vol. 441, Issue 1-2 https://doi.org/10.1016/j.physc.2006.03.053	journal	July 2006
Surface superconductivity in niobium for superconducting RF cavities Casalbuoni, S.; Knabbe, E. A.; Kötzler, J. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 538, Issue 1-3 https://doi.org/10.1016/j.nima.2004.09.003	journal	February 2005
Impact of Forming, Welding, and Electropolishing on Pitting and the Surface Finish of SRF Cavity Niobium Cooley, L. D.; Burk, D.; Cooper, C. IEEE Transactions on Applied Superconductivity, Vol. 21, Issue 3, p. 2609-2614 https://doi.org/10.1109/TASC.2010.2083629	journal	June 2011
Onset of superconductivity in decreasing fields Saint-James, D.; Gennes, P. G. Physics Letters, Vol. 7, Issue 5 https://doi.org/10.1016/0031-9163(63)90047-7	journal	December 1963
Nature of the ac Transition in the Superconducting Surface Sheath in Pb-2% In Rollins, R. W.; Silcox, J. Physical Review, Vol. 155, Issue 2 https://doi.org/10.1103/PhysRev.155.404	journal	March 1967
ac magnetic susceptibility, Meissner effect, and bulk superconductivity Hein, R. A. Physical Review B, Vol. 33, Issue 11 https://doi.org/10.1103/PhysRevB.33.7539	journal	June 1986
Temperature Dependence of the Ginzburg-Landau Coefficient in Type-I Superconductors Paskin, Arthur; Strongin, Myron; Craig, Paul P. Physical Review, Vol. 137, Issue 6A https://doi.org/10.1103/PhysRev.137.A1816	journal	March 1965
Observation of the Microstructure of Grain Boundary Oxides in Superconducting RF-Quality Niobium With High-Resolution TEM (Transmission Electron Microscope) Sung, Z-H; Lee, P. J.; Larbalestier, D. C. IEEE Transactions on Applied Superconductivity, Vol. 24, Issue 1 https://doi.org/10.1109/TASC.2013.2287050	journal	February 2014
CASINO: A new monte carlo code in C language for electron beam interaction -part I: Description of the program Hovington, Pierre; Drouin, Dominique; Gauvin, Raynald Scanning, Vol. 19, Issue 1 https://doi.org/10.1002/sca.4950190101	journal	January 1997
A Review of Strain Analysis Using Electron Backscatter Diffraction Wright, Stuart I.; Nowell, Matthew M.; Field, David P. Microscopy and Microanalysis, Vol. 17, Issue 3 https://doi.org/10.1017/S1431927611000055	journal	March 2011
Geometrically necessary, incidental and subgrain boundaries Kuhlmann-Wilsdorf, D.; Hansen, Niels Scripta Metallurgica et Materialia, Vol. 25, Issue 7 https://doi.org/10.1016/0956-716X(91)90451-6	journal	July 1991
Misorientation Mapping for Visualization of Plastic Deformation via Electron Back-Scattered Diffraction Brewer, L. N.; Othon, M. A.; Young, L. M. Microscopy and Microanalysis, Vol. 12, Issue 1, p. 85-91 https://doi.org/10.1017/S1431927606060120	journal	January 2006
Surface superconductivity in niobium and niobium-tantalum alloys Hopkins, J. R.; Finnemore, D. K. Physical Review B, Vol. 9, Issue 1 https://doi.org/10.1103/PhysRevB.9.108	journal	January 1974
Superconducting Properties of High-Purity Niobium Finnemore, D. K.; Stromberg, T. F.; Swenson, C. A. Physical Review, Vol. 149, Issue 1 https://doi.org/10.1103/PhysRev.149.231	journal	September 1966
Effect of Dissolved Gases on Some Superconducting Properties of Niobium DeSorbo, Warren Physical Review, Vol. 132, Issue 1 https://doi.org/10.1103/PhysRev.132.107	journal	October 1963
Combined effects of cold work and chemical polishing on the absorption and release of hydrogen from SRF cavities inferred from resistance measurements of cavity-grade niobium bars Dzyuba, A.; Cooley, L. D. Superconductor Science and Technology, Vol. 27, Issue 3 https://doi.org/10.1088/0953-2048/27/3/035001	journal	January 2014
Improved oxygen diffusion model to explain the effect of low-temperature baking on high field losses in niobium superconducting cavities Ciovati, Gianluigi Applied Physics Letters, Vol. 89, Issue 2 https://doi.org/10.1063/1.2220059	journal	July 2006
Physical and mechanical metallurgy of high purity Nb for accelerator cavities Bieler, T. R.; Wright, N. T.; Pourboghrat, F. Physical Review Special Topics - Accelerators and Beams, Vol. 13, Issue 3 https://doi.org/10.1103/PhysRevSTAB.13.031002	journal	March 2010
Annealing to mitigate pitting in electropolished niobium coupons and SRF cavities Cooley, L. D.; Hahn, E.; Hicks, D. ADVANCES IN CRYOGENIC ENGINEERING: Transactions of the International Cryogenic Materials Conference - ICMC, Volume 58, AIP Conference Proceedings https://doi.org/10.1063/1.4712108	conference	January 2012

Cited By (1)

Efficient expulsion of magnetic flux in superconducting radiofrequency cavities for high Q ₀ applications Posen, S.; Checchin, M.; Crawford, A. C. Journal of Applied Physics, Vol. 119, Issue 21 https://doi.org/10.1063/1.4953087	journal	June 2016

Similar Records

Insight to the Duration of 120 °C Baking on the Performance of SRF Niobium Cavities

Journal Article · Mon Jan 09 00:00:00 EST 2023 · IEEE Transactions on Applied Superconductivity · OSTI ID:1179688

Khanal, Bashu Dev; Dhakal, Pashupati

Effect of Electropolishing and Low-Temperature Baking on the Superconducting Properties of Large-Grain Niobium

Conference · Tue Mar 01 00:00:00 EST 2011 · AIP Conf.Proc. · OSTI ID:1179688

Buffered Electrochemical Polishing of Niobium

Journal Article · Tue Mar 01 00:00:00 EST 2011 · Journal of Applied Electrochemistry · OSTI ID:1179688

Tian, Hui; Corcoran, Sean

Related Subjects

36 MATERIALS SCIENCE
43 PARTICLE ACCELERATORS
Superconductivity
SRF
Heat Treatment
Niobium
Surfaces
interfaces and thin films
Condensed matter: structural
mechanical & thermal

Title: Evidence of incomplete annealing at 800 °C and the effects of 120 °C baking on the crystal orientation and the surface superconducting properties of cold-worked and chemically polished Nb

Citation Formats

References (43)

Cited By (1)

Similar Records

Related Subjects