Successful production of solution blow spun YBCO+Ag complex ceramics
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.ceramint.2020.06.188 http://hdl.handle.net/11449/199185 |
Resumo: | YBCO fabrics composed of nanowires, produced by solution blow spinning (SBS) are so brittle that the Lorentz force produced by induced currents can be strong enough to damage them. On the other hand, it is known that silver addition improves the mechanical and flux pinning properties of ceramic superconductors. Thus, in this work, we show how we successfully obtained a polymeric precursor solution containing YBCO+Ag salts, which can be spun by the SBS route to produce ceramic samples. Yttrium, barium, copper, and silver metal acetates, and polyvinylpyrrolidone (PVP) (in a ratio of 5:1 wt [PVP:acetates]) were dissolved in a solution with 61.5 wt% of methanol, 12 wt% of propionic acid, and 26.5 wt% of ammonium hydroxide, together with 6 wt% of PVP in solution. Three different amounts of silver (10 wt%, 20 wt%, and 30 wt%) were used in YBa2Cu3O7−x. The TGA characterizations revealed a lowering of crystallization and partial melting temperatures by about 30 °C. SEM images show that after burning out the polymer, a fabric composed of nanowires of diameters up to 380 nm is produced. However, after the sintering process at 925 °C for 1 h, the nanowires shrink into a porous-like sample. |
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Successful production of solution blow spun YBCO+Ag complex ceramicsChemical routeSilver additionSol-gelsolution blow spinningYBCOYBCO fabrics composed of nanowires, produced by solution blow spinning (SBS) are so brittle that the Lorentz force produced by induced currents can be strong enough to damage them. On the other hand, it is known that silver addition improves the mechanical and flux pinning properties of ceramic superconductors. Thus, in this work, we show how we successfully obtained a polymeric precursor solution containing YBCO+Ag salts, which can be spun by the SBS route to produce ceramic samples. Yttrium, barium, copper, and silver metal acetates, and polyvinylpyrrolidone (PVP) (in a ratio of 5:1 wt [PVP:acetates]) were dissolved in a solution with 61.5 wt% of methanol, 12 wt% of propionic acid, and 26.5 wt% of ammonium hydroxide, together with 6 wt% of PVP in solution. Three different amounts of silver (10 wt%, 20 wt%, and 30 wt%) were used in YBa2Cu3O7−x. The TGA characterizations revealed a lowering of crystallization and partial melting temperatures by about 30 °C. SEM images show that after burning out the polymer, a fabric composed of nanowires of diameters up to 380 nm is produced. However, after the sintering process at 925 °C for 1 h, the nanowires shrink into a porous-like sample.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Superconductivity and Advanced Materials Group São Paulo State University (UNESP) Campus at Ilha SolteiraSuperconductivity Group Centre for Materials Physics Department of Physics Durham UniversityDepartment of Engineering University of Cambridge, Trumpington StreetSuperconductivity and Advanced Materials Group São Paulo State University (UNESP) Campus at Ilha SolteiraCAPES: 001FAPESP: 2016/12390-6FAPESP: 2017/50382–8CNPq: 302564/2018–7Universidade Estadual Paulista (Unesp)Durham UniversityUniversity of CambridgePessoa, A. L. [UNESP]Raine, M. J.Hampshire, D. P.Namburi, D. K.Durrell, J. H.Zadorosny, R. [UNESP]2020-12-12T01:33:04Z2020-12-12T01:33:04Z2020-10-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article24097-24101http://dx.doi.org/10.1016/j.ceramint.2020.06.188Ceramics International, v. 46, n. 15, p. 24097-24101, 2020.0272-8842http://hdl.handle.net/11449/19918510.1016/j.ceramint.2020.06.1882-s2.0-85088798091Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCeramics Internationalinfo:eu-repo/semantics/openAccess2021-10-23T04:34:01Zoai:repositorio.unesp.br:11449/199185Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:06:51.473647Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Successful production of solution blow spun YBCO+Ag complex ceramics |
title |
Successful production of solution blow spun YBCO+Ag complex ceramics |
spellingShingle |
Successful production of solution blow spun YBCO+Ag complex ceramics Pessoa, A. L. [UNESP] Chemical route Silver addition Sol-gel solution blow spinning YBCO |
title_short |
Successful production of solution blow spun YBCO+Ag complex ceramics |
title_full |
Successful production of solution blow spun YBCO+Ag complex ceramics |
title_fullStr |
Successful production of solution blow spun YBCO+Ag complex ceramics |
title_full_unstemmed |
Successful production of solution blow spun YBCO+Ag complex ceramics |
title_sort |
Successful production of solution blow spun YBCO+Ag complex ceramics |
author |
Pessoa, A. L. [UNESP] |
author_facet |
Pessoa, A. L. [UNESP] Raine, M. J. Hampshire, D. P. Namburi, D. K. Durrell, J. H. Zadorosny, R. [UNESP] |
author_role |
author |
author2 |
Raine, M. J. Hampshire, D. P. Namburi, D. K. Durrell, J. H. Zadorosny, R. [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Durham University University of Cambridge |
dc.contributor.author.fl_str_mv |
Pessoa, A. L. [UNESP] Raine, M. J. Hampshire, D. P. Namburi, D. K. Durrell, J. H. Zadorosny, R. [UNESP] |
dc.subject.por.fl_str_mv |
Chemical route Silver addition Sol-gel solution blow spinning YBCO |
topic |
Chemical route Silver addition Sol-gel solution blow spinning YBCO |
description |
YBCO fabrics composed of nanowires, produced by solution blow spinning (SBS) are so brittle that the Lorentz force produced by induced currents can be strong enough to damage them. On the other hand, it is known that silver addition improves the mechanical and flux pinning properties of ceramic superconductors. Thus, in this work, we show how we successfully obtained a polymeric precursor solution containing YBCO+Ag salts, which can be spun by the SBS route to produce ceramic samples. Yttrium, barium, copper, and silver metal acetates, and polyvinylpyrrolidone (PVP) (in a ratio of 5:1 wt [PVP:acetates]) were dissolved in a solution with 61.5 wt% of methanol, 12 wt% of propionic acid, and 26.5 wt% of ammonium hydroxide, together with 6 wt% of PVP in solution. Three different amounts of silver (10 wt%, 20 wt%, and 30 wt%) were used in YBa2Cu3O7−x. The TGA characterizations revealed a lowering of crystallization and partial melting temperatures by about 30 °C. SEM images show that after burning out the polymer, a fabric composed of nanowires of diameters up to 380 nm is produced. However, after the sintering process at 925 °C for 1 h, the nanowires shrink into a porous-like sample. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T01:33:04Z 2020-12-12T01:33:04Z 2020-10-15 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.ceramint.2020.06.188 Ceramics International, v. 46, n. 15, p. 24097-24101, 2020. 0272-8842 http://hdl.handle.net/11449/199185 10.1016/j.ceramint.2020.06.188 2-s2.0-85088798091 |
url |
http://dx.doi.org/10.1016/j.ceramint.2020.06.188 http://hdl.handle.net/11449/199185 |
identifier_str_mv |
Ceramics International, v. 46, n. 15, p. 24097-24101, 2020. 0272-8842 10.1016/j.ceramint.2020.06.188 2-s2.0-85088798091 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ceramics International |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
24097-24101 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129584979247104 |