Mechanical and Electrical Characterization of 8YSZ-ScCeSZ Ceramics
The effects of small amounts (up to 5 wt.%) of scandia- and ceria-stabilized zirconia on the electrical conductivity, and the elastic modulus and hardness of yttria-stabilized zirconia were investigated by impedance spectroscopy and nanoindentation tests, respectively. The main purpose of this work...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2023-06-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392023000200223&tlng=en |
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| author | T. G. Fujimoto V. Seriacopi L. A. S. Ferreira I. F. Machado E. N. S. Muccillo |
| author_facet | T. G. Fujimoto V. Seriacopi L. A. S. Ferreira I. F. Machado E. N. S. Muccillo |
| author_sort | T. G. Fujimoto |
| collection | DOAJ |
| description | The effects of small amounts (up to 5 wt.%) of scandia- and ceria-stabilized zirconia on the electrical conductivity, and the elastic modulus and hardness of yttria-stabilized zirconia were investigated by impedance spectroscopy and nanoindentation tests, respectively. The main purpose of this work was to obtain solid electrolyte compounds with improved properties compared to those of the base materials. Solid electrolytes compounds were prepared by solid-state reaction synthesis with sintering at 1450 ºC for 4 h. All prepared compounds exhibit a cubic fluorite-type structure. The microstructure of the compounds consists of polygonal grains with low (< 2%) porosity. The mean grain size estimated by the intercept method was 5 ± 1 μm. The electrical conductivity of the compound ceramics is lower than that of the base material. Addition of scandia-stabilized zirconia is found to exert a beneficial effect on the matrix by increasing the elastic modulus, achieving 221 MPa for 5 wt.% of the additive. |
| first_indexed | 2024-03-13T02:17:45Z |
| format | Article |
| id | doaj.art-247055c7a6d64f71b9e3dc7bde97e089 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-03-13T02:17:45Z |
| publishDate | 2023-06-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-247055c7a6d64f71b9e3dc7bde97e0892023-06-30T10:59:10ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392023-06-0126suppl 110.1590/1980-5373-mr-2022-0595Mechanical and Electrical Characterization of 8YSZ-ScCeSZ CeramicsT. G. Fujimotohttps://orcid.org/0000-0003-3932-4582V. Seriacopihttps://orcid.org/0000-0002-1903-867XL. A. S. Ferreirahttps://orcid.org/0000-0001-9911-0995I. F. Machadohttps://orcid.org/0000-0002-1079-0777E. N. S. Muccillohttps://orcid.org/0000-0001-9219-388XThe effects of small amounts (up to 5 wt.%) of scandia- and ceria-stabilized zirconia on the electrical conductivity, and the elastic modulus and hardness of yttria-stabilized zirconia were investigated by impedance spectroscopy and nanoindentation tests, respectively. The main purpose of this work was to obtain solid electrolyte compounds with improved properties compared to those of the base materials. Solid electrolytes compounds were prepared by solid-state reaction synthesis with sintering at 1450 ºC for 4 h. All prepared compounds exhibit a cubic fluorite-type structure. The microstructure of the compounds consists of polygonal grains with low (< 2%) porosity. The mean grain size estimated by the intercept method was 5 ± 1 μm. The electrical conductivity of the compound ceramics is lower than that of the base material. Addition of scandia-stabilized zirconia is found to exert a beneficial effect on the matrix by increasing the elastic modulus, achieving 221 MPa for 5 wt.% of the additive.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392023000200223&tlng=enYttria-stabilized zirconiaelastic moduluselectrical conductivity |
| spellingShingle | T. G. Fujimoto V. Seriacopi L. A. S. Ferreira I. F. Machado E. N. S. Muccillo Mechanical and Electrical Characterization of 8YSZ-ScCeSZ Ceramics Materials Research Yttria-stabilized zirconia elastic modulus electrical conductivity |
| title | Mechanical and Electrical Characterization of 8YSZ-ScCeSZ Ceramics |
| title_full | Mechanical and Electrical Characterization of 8YSZ-ScCeSZ Ceramics |
| title_fullStr | Mechanical and Electrical Characterization of 8YSZ-ScCeSZ Ceramics |
| title_full_unstemmed | Mechanical and Electrical Characterization of 8YSZ-ScCeSZ Ceramics |
| title_short | Mechanical and Electrical Characterization of 8YSZ-ScCeSZ Ceramics |
| title_sort | mechanical and electrical characterization of 8ysz sccesz ceramics |
| topic | Yttria-stabilized zirconia elastic modulus electrical conductivity |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392023000200223&tlng=en |
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