Dynamic behavior of reversible oxygen migration in irradiated-annealed high temperature superconducting wires

Zhang, Yi; Li, Qiang

doi:10.1038/s41598-020-70663-1

Title: Dynamic behavior of reversible oxygen migration in irradiated-annealed high temperature superconducting wires

Abstract

Large-scale extrusion-based additive manufacturing of high-performance thermoplastic composites like fiber reinforced polyphenylene sulfide (PPS) is well-suited for tooling applications to lower manufacturing costs and lead times. Autoclave tooling requires good mechanical performance at temperatures even above the glass transition temperature (T_g). In this work, the authors have investigated a post-process isothermal annealing technique to improve the mechanical properties of various grades of carbon fiber reinforced PPS components printed on the Big Area Additive Manufacturing (BAAM) system. Since PPS is a semi-crystalline polymer, crystallinity can change during annealing and affect the mechanical properties of the part. In addition, isothermal annealing can also lead to solid-state structural changes in the form of thermal and oxidative branching and/or crosslinking reactions in some grades of PPS which can alter the crystallization process. This work reports the effect of annealing on dynamic mechanical properties of BAAM printed components, along with studies to determine the effect of annealing on crystallinity and the occurrence of oxidative reactions. Results showed that isothermal annealing at 250 °C for 18 h improved the storage modulus of all selected grades (neat and reinforced) of PPS at temperatures above T_g. Annealing led to an overall increase in the degree of crystallinity, withmore »« less

Authors:

Zhang, Yi ^[1];

^[1]

Brookhaven National Lab. (BNL), Upton, NY (United States)

Publication Date:: Thu Sep 10 00:00:00 EDT 2020

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1677668

Report Number(s):: BNL-219960-2020-JAAM
Journal ID: ISSN 2045-2322; TRN: US2204016

Grant/Contract Number:: SC0012704

Resource Type:: Accepted Manuscript

Journal Name:: Scientific Reports

Additional Journal Information:: Journal Volume: 10; Journal Issue: 1; Journal ID: ISSN 2045-2322

Publisher:: Nature Publishing Group

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Material extrusion; Polyphenylene sulfide; High temperature thermoplastics; Annealing; Crystallinity

Citation Formats


                    Zhang, Yi, and Li, Qiang. Dynamic behavior of reversible oxygen migration in irradiated-annealed high temperature superconducting wires.  United States: N. p., 2020. 
Web.  doi:10.1038/s41598-020-70663-1.

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                    Zhang, Yi, & Li, Qiang. Dynamic behavior of reversible oxygen migration in irradiated-annealed high temperature superconducting wires.  United States.  https://doi.org/10.1038/s41598-020-70663-1

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                    Zhang, Yi, and Li, Qiang. Thu .  
"Dynamic behavior of reversible oxygen migration in irradiated-annealed high temperature superconducting wires".  United States.  https://doi.org/10.1038/s41598-020-70663-1.  https://www.osti.gov/servlets/purl/1677668.

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@article{osti_1677668,

  title        = {Dynamic behavior of reversible oxygen migration in irradiated-annealed high temperature superconducting wires},

  author       = {Zhang, Yi and Li, Qiang},

  abstractNote = {Large-scale extrusion-based additive manufacturing of high-performance thermoplastic composites like fiber reinforced polyphenylene sulfide (PPS) is well-suited for tooling applications to lower manufacturing costs and lead times. Autoclave tooling requires good mechanical performance at temperatures even above the glass transition temperature (Tg). In this work, the authors have investigated a post-process isothermal annealing technique to improve the mechanical properties of various grades of carbon fiber reinforced PPS components printed on the Big Area Additive Manufacturing (BAAM) system. Since PPS is a semi-crystalline polymer, crystallinity can change during annealing and affect the mechanical properties of the part. In addition, isothermal annealing can also lead to solid-state structural changes in the form of thermal and oxidative branching and/or crosslinking reactions in some grades of PPS which can alter the crystallization process. This work reports the effect of annealing on dynamic mechanical properties of BAAM printed components, along with studies to determine the effect of annealing on crystallinity and the occurrence of oxidative reactions. Results showed that isothermal annealing at 250 °C for 18 h improved the storage modulus of all selected grades (neat and reinforced) of PPS at temperatures above Tg. Annealing led to an overall increase in the degree of crystallinity, with secondary crystallization taking place. Although oxidative structural changes were observed to occur more on the surface of the PPS parts, they primarily influenced the size of crystals formed and did not significantly alter the degree of crystallinity at various regions within the sample.},

  doi          = {10.1038/s41598-020-70663-1},

  journal      = {Scientific Reports},

  number       = 1,

  volume       = 10,

  place        = {United States},

  year         = {Thu Sep 10 00:00:00 EDT 2020},

  month        = {Thu Sep 10 00:00:00 EDT 2020}

}

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Journal Article:

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https://doi.org/10.1038/s41598-020-70663-1

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Figures / Tables:

Figure 1: (a) Temperature dependence of the superconducting shielding fraction in YBCO films. (b) The $J_c$ enhancement versus applied magnetic field at 65 K for the irradiated and annealed samples.

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Works referenced in this record:

Strain-Driven Oxygen Deficiency in Self-Assembled, Nanostructured, Composite Oxide Films
journal, May 2011

Cantoni, Claudia; Gao, Yanfei; Wee, Sung Hun
ACS Nano, Vol. 5, Issue 6
DOI: 10.1021/nn2007628

Point Defects Creation by Swift Heavy Ion Irradiation Induced Low Energy Electrons in YBa[sub 2]Cu[sub 3]O[sub 7−y] through Dissociative Recombination
conference, January 2008

Biswal, R.; John, J.; Behera, D.
MESOSCOPIC, NANOSCOPIC AND MACROSCOPIC MATERIALS: Proceedings of the International Workshop on Mesoscopic, Nanoscopic and Macroscopic Materials (IWMNMM-2008), AIP Conference Proceedings
DOI: 10.1063/1.3027166

Vortices in high-performance high-temperature superconductors
journal, September 2016

Kwok, Wai-Kwong; Welp, Ulrich; Glatz, Andreas
Reports on Progress in Physics, Vol. 79, Issue 11
DOI: 10.1088/0034-4885/79/11/116501

Defect independence of the irreversibility line in proton-irradiated Y-Ba-Cu-O crystals
journal, August 1990

Civale, L.; Marwick, A. D.; McElfresh, M. W.
Physical Review Letters, Vol. 65, Issue 9, p. 1164-1167
DOI: 10.1103/PhysRevLett.65.1164

Neutron-irradiation effects on critical current densities in single-crystalline ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - δ}$
journal, February 1991

Sauerzopf, F. M.; Wiesinger, H. P.; Kritscha, W.
Physical Review B, Vol. 43, Issue 4
DOI: 10.1103/PhysRevB.43.3091

Extended electronic structure inhomogeneity created by double chain layer defects surrounding columnar tracks in heavy-ion irradiated YBa ₂ Cu ₃ O _{7− δ}
journal, August 2018

Kwon, Ji-Hwan; Meng, Yifei; Wu, Lijun
Superconductor Science and Technology, Vol. 31, Issue 10
DOI: 10.1088/1361-6668/aad842

Decoupling and tuning competing effects of different types of defects on flux creep in irradiated YBa ₂ Cu ₃ O _{7− δ} coated conductors
journal, November 2016

Eley, S.; Leroux, M.; Rupich, M. W.
Superconductor Science and Technology, Vol. 30, Issue 1
DOI: 10.1088/0953-2048/30/1/015010

Critical currents near 106 A cm-2 at 77 K in neutron-irradiated single-crystal YBa2Cu3O7
journal, November 1989

van Dover, R. B.; Gyorgy, E. M.; Schneemeyer, L. F.
Nature, Vol. 342, Issue 6245
DOI: 10.1038/342055a0

Vortex confinement by columnar defects in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7}$ crystals: Enhanced pinning at high fields and temperatures
journal, July 1991

Civale, L.; Marwick, A. D.; Worthington, T. K.
Physical Review Letters, Vol. 67, Issue 5
DOI: 10.1103/PhysRevLett.67.648

Effect of oxygen defects on transport properties and $T_{c}$ of ${YBa}_{2}$ ${Cu}_{3}$ $O_{6 + x}$ : Displacement energy for plane and chain oxygen and implications for irradiation-induced resistivity and $T_{c}$ suppression
journal, May 1996

Tolpygo, Sergey K.; Lin, J. -Y.; Gurvitch, Michael
Physical Review B, Vol. 53, Issue 18
DOI: 10.1103/PhysRevB.53.12462

Irradiation-free, columnar defects comprised of self-assembled nanodots and nanorods resulting in strongly enhanced flux-pinning in YBa₂Cu₃O_7−δ films
journal, October 2005

Goyal, A; Kang, S; Leonard, K. J.
Superconductor Science and Technology, Vol. 18, Issue 11, p. 1533-1538
DOI: 10.1088/0953-2048/18/11/021

Self-assembled oxide nanopillars in epitaxial BaFe2As2 thin films for vortex pinning
journal, January 2011

Zhang, Yi; Nelson, Christopher T.; Lee, Sanghan
Applied Physics Letters, Vol. 98, Issue 4
DOI: 10.1063/1.3532107

TEM observation of the microstructure of metal-organic deposited YBa ₂ Cu ₃ O _7−δ with Dy additions
journal, July 2007

Xia, J. A.; Long, N. J.; Strickland, N. M.
Superconductor Science and Technology, Vol. 20, Issue 8
DOI: 10.1088/0953-2048/20/8/027

Atomic scale real-space mapping of holes in YBa2Cu3O6+δ
journal, July 2014

Gauquelin, N.; Hawthorn, D. G.; Sawatzky, G. A.
Nature Communications, Vol. 5, Issue 1
DOI: 10.1038/ncomms5275

Role of point defects and their clusters for flux pinning as determined from irradiation and annealing experiments in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - δ}$ single crystals
journal, August 1993

Vlcek, B. M.; Viswanathan, H. K.; Frischherz, M. C.
Physical Review B, Vol. 48, Issue 6
DOI: 10.1103/PhysRevB.48.4067

Effect of annealing high-dose heavy-ion irradiated high-temperature superconductor wires
journal, October 2017

Strickland, N. M.; Wimbush, S. C.; Kluth, P.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 409
DOI: 10.1016/j.nimb.2017.01.015

Observation and mechanism of local oxygen reordering induced by high-energy heavy-ion ( $U^{+},$ ${Au}^{+},$ ${Xe}^{+}$ ) irradiation in the high- $T_{c}$ superconductor ${YBa}_{2} {Cu}_{3} O_{7 - δ}$
journal, March 1998

Yan, Y.; Kirk, M. A.
Physical Review B, Vol. 57, Issue 10
DOI: 10.1103/PhysRevB.57.6152

Structure and properties of irradiation defects in YBa 2 Cu 3 O 7−x
journal, October 1999

Kirk, M. A.; Yan, Y.
Micron, Vol. 30, Issue 5
DOI: 10.1016/S0968-4328(99)00051-7

Second Generation Wire Development at AMSC
journal, January 2013

Rupich, Martin; Li, Xiaoping; Sathyamurthy, Srivatsan
Applied Superconductivity, IEEE Transactions on, Vol. 23, Issue 3
DOI: 10.1109/TASC.2012.2235495

The Development of Second Generation HTS Wire at American Superconductor
journal, June 2007

Rupich, M.W.; Schoop, U.; Verebelyi, D.T.
IEEE Transactions on Applied Superconductivity, Vol. 17, Issue 2, p. 3379-3382
DOI: 10.1109/TASC.2007.899076

Pinning in proton-irradiated and annealed ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - x}$ single crystals
journal, December 1992

Griffith, M. L.; Halloran, J. W.
Physical Review B, Vol. 46, Issue 21
DOI: 10.1103/PhysRevB.46.14105

Nanoscale strain-induced pair suppression as a vortex-pinning mechanism in high-temperature superconductors
journal, February 2012

Llordés, A.; Palau, A.; Gázquez, J.
Nature Materials, Vol. 11, Issue 4
DOI: 10.1038/nmat3247

Materials science challenges for high-temperature superconducting wire
journal, September 2007

Foltyn, S. R.; Civale, L.; MacManus-Driscoll, J. L.
Nature Materials, Vol. 6, Issue 9, p. 631-642
DOI: 10.1038/nmat1989

Production and identification of flux-pinning defects by electron irradiation in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - x}$ single crystals
journal, May 1992

Giapintzakis, J.; Lee, W. C.; Rice, J. P.
Physical Review B, Vol. 45, Issue 18
DOI: 10.1103/PhysRevB.45.10677

A route for a strong increase of critical current in nanostrained iron-based superconductors
journal, October 2016

Ozaki, Toshinori; Wu, Lijun; Zhang, Cheng
Nature Communications, Vol. 7, Issue 1
DOI: 10.1038/ncomms13036

Engineered Pinning Landscapes for Enhanced 2G Coil Wire
journal, April 2016

Rupich, Martin W.; Sathyamurthy, Srivatsan; Fleshler, Steven
IEEE Transactions on Applied Superconductivity, Vol. 26, Issue 3
DOI: 10.1109/TASC.2016.2542270

Engineering nanocolumnar defect configurations for optimized vortex pinning in high temperature superconducting nanocomposite wires
journal, August 2013

Wee, Sung Hun; Zuev, Yuri L.; Cantoni, Claudia
Scientific Reports, Vol. 3, Issue 1
DOI: 10.1038/srep02310

Effect of ion-irradiation and annealing on superconductive property of PLD prepared YBCO tapes
journal, October 2007

Nakashima, K.; Chikumoto, N.; Ibi, A.
Physica C: Superconductivity and its Applications, Vol. 463-465
DOI: 10.1016/j.physc.2007.04.263

Structures and effects of radiation damage in cuprate superconductors irradiated with several-hundred-MeV heavy ions
journal, September 1993

Zhu, Yimei; Cai, Z. X.; Budhani, R. C.
Physical Review B, Vol. 48, Issue 9
DOI: 10.1103/PhysRevB.48.6436

Toward Superconducting Critical Current by Design
journal, March 2016

Sadovskyy, Ivan A.; Jia, Ying; Leroux, Maxime
Advanced Materials, Vol. 28, Issue 23
DOI: 10.1002/adma.201600602

Figures / Tables found in this record:

Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

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Title: Dynamic behavior of reversible oxygen migration in irradiated-annealed high temperature superconducting wires

Abstract

Citation Formats

Figures / Tables:

Strain-Driven Oxygen Deficiency in Self-Assembled, Nanostructured, Composite Oxide Films journal, May 2011

Point Defects Creation by Swift Heavy Ion Irradiation Induced Low Energy Electrons in YBa[sub 2]Cu[sub 3]O[sub 7−y] through Dissociative Recombination conference, January 2008

Vortices in high-performance high-temperature superconductors journal, September 2016

Defect independence of the irreversibility line in proton-irradiated Y-Ba-Cu-O crystals journal, August 1990

Neutron-irradiation effects on critical current densities in single-crystalline YBa 2 Cu 3 O 7 − δ journal, February 1991

Extended electronic structure inhomogeneity created by double chain layer defects surrounding columnar tracks in heavy-ion irradiated YBa 2 Cu 3 O 7− δ journal, August 2018

Decoupling and tuning competing effects of different types of defects on flux creep in irradiated YBa 2 Cu 3 O 7− δ coated conductors journal, November 2016

Critical currents near 106 A cm-2 at 77 K in neutron-irradiated single-crystal YBa2Cu3O7 journal, November 1989

Vortex confinement by columnar defects in YBa 2 Cu 3 O 7 crystals: Enhanced pinning at high fields and temperatures journal, July 1991

Effect of oxygen defects on transport properties and T c of YBa 2 Cu 3 O 6 + x : Displacement energy for plane and chain oxygen and implications for irradiation-induced resistivity and T c suppression journal, May 1996

Irradiation-free, columnar defects comprised of self-assembled nanodots and nanorods resulting in strongly enhanced flux-pinning in YBa2Cu3O7−δ films journal, October 2005

Self-assembled oxide nanopillars in epitaxial BaFe2As2 thin films for vortex pinning journal, January 2011

TEM observation of the microstructure of metal-organic deposited YBa 2 Cu 3 O 7−δ with Dy additions journal, July 2007

Atomic scale real-space mapping of holes in YBa2Cu3O6+δ journal, July 2014

Role of point defects and their clusters for flux pinning as determined from irradiation and annealing experiments in YBa 2 Cu 3 O 7 − δ single crystals journal, August 1993

Effect of annealing high-dose heavy-ion irradiated high-temperature superconductor wires journal, October 2017

Observation and mechanism of local oxygen reordering induced by high-energy heavy-ion ( U + , Au + , Xe + ) irradiation in the high- T c superconductor YBa 2 Cu 3 O 7 − δ journal, March 1998

Structure and properties of irradiation defects in YBa 2 Cu 3 O 7−x journal, October 1999

Second Generation Wire Development at AMSC journal, January 2013

The Development of Second Generation HTS Wire at American Superconductor journal, June 2007

Pinning in proton-irradiated and annealed YBa 2 Cu 3 O 7 − x single crystals journal, December 1992

Nanoscale strain-induced pair suppression as a vortex-pinning mechanism in high-temperature superconductors journal, February 2012

Materials science challenges for high-temperature superconducting wire journal, September 2007

Production and identification of flux-pinning defects by electron irradiation in YBa 2 Cu 3 O 7 − x single crystals journal, May 1992

A route for a strong increase of critical current in nanostrained iron-based superconductors journal, October 2016

Engineered Pinning Landscapes for Enhanced 2G Coil Wire journal, April 2016

Engineering nanocolumnar defect configurations for optimized vortex pinning in high temperature superconducting nanocomposite wires journal, August 2013

Effect of ion-irradiation and annealing on superconductive property of PLD prepared YBCO tapes journal, October 2007

Structures and effects of radiation damage in cuprate superconductors irradiated with several-hundred-MeV heavy ions journal, September 1993

Toward Superconducting Critical Current by Design journal, March 2016

Strain-Driven Oxygen Deficiency in Self-Assembled, Nanostructured, Composite Oxide Films
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Point Defects Creation by Swift Heavy Ion Irradiation Induced Low Energy Electrons in YBa[sub 2]Cu[sub 3]O[sub 7−y] through Dissociative Recombination
conference, January 2008

Vortices in high-performance high-temperature superconductors
journal, September 2016

Defect independence of the irreversibility line in proton-irradiated Y-Ba-Cu-O crystals
journal, August 1990

Neutron-irradiation effects on critical current densities in single-crystalline ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - δ}$
journal, February 1991

Extended electronic structure inhomogeneity created by double chain layer defects surrounding columnar tracks in heavy-ion irradiated YBa ₂ Cu ₃ O _{7− δ}
journal, August 2018

Decoupling and tuning competing effects of different types of defects on flux creep in irradiated YBa ₂ Cu ₃ O _{7− δ} coated conductors
journal, November 2016

Critical currents near 106 A cm-2 at 77 K in neutron-irradiated single-crystal YBa2Cu3O7
journal, November 1989

Vortex confinement by columnar defects in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7}$ crystals: Enhanced pinning at high fields and temperatures
journal, July 1991

Effect of oxygen defects on transport properties and $T_{c}$ of ${YBa}_{2}$ ${Cu}_{3}$ $O_{6 + x}$ : Displacement energy for plane and chain oxygen and implications for irradiation-induced resistivity and $T_{c}$ suppression
journal, May 1996

Irradiation-free, columnar defects comprised of self-assembled nanodots and nanorods resulting in strongly enhanced flux-pinning in YBa₂Cu₃O_7−δ films
journal, October 2005

Self-assembled oxide nanopillars in epitaxial BaFe2As2 thin films for vortex pinning
journal, January 2011

TEM observation of the microstructure of metal-organic deposited YBa ₂ Cu ₃ O _7−δ with Dy additions
journal, July 2007

Atomic scale real-space mapping of holes in YBa2Cu3O6+δ
journal, July 2014

Role of point defects and their clusters for flux pinning as determined from irradiation and annealing experiments in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - δ}$ single crystals
journal, August 1993

Effect of annealing high-dose heavy-ion irradiated high-temperature superconductor wires
journal, October 2017

Observation and mechanism of local oxygen reordering induced by high-energy heavy-ion ( $U^{+},$ ${Au}^{+},$ ${Xe}^{+}$ ) irradiation in the high- $T_{c}$ superconductor ${YBa}_{2} {Cu}_{3} O_{7 - δ}$
journal, March 1998

Structure and properties of irradiation defects in YBa 2 Cu 3 O 7−x
journal, October 1999

Second Generation Wire Development at AMSC
journal, January 2013

The Development of Second Generation HTS Wire at American Superconductor
journal, June 2007

Pinning in proton-irradiated and annealed ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - x}$ single crystals
journal, December 1992

Nanoscale strain-induced pair suppression as a vortex-pinning mechanism in high-temperature superconductors
journal, February 2012

Materials science challenges for high-temperature superconducting wire
journal, September 2007

Production and identification of flux-pinning defects by electron irradiation in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - x}$ single crystals
journal, May 1992

A route for a strong increase of critical current in nanostrained iron-based superconductors
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journal, August 2013

Effect of ion-irradiation and annealing on superconductive property of PLD prepared YBCO tapes
journal, October 2007

Structures and effects of radiation damage in cuprate superconductors irradiated with several-hundred-MeV heavy ions
journal, September 1993

Toward Superconducting Critical Current by Design
journal, March 2016