Y2O3 transparent nanoceramics via SPS and ZrO2-doping
The synergistic effect of spark plasma sintering (SPS) and 0–15 mol. % of ZrO₂ doping on the microstructure, mechanical and optical properties of Y2O3 transparent ceramics was investigated. ZrO2-doped Y2O3 were obtained by SPS at 1300–1600 °C. Sintering at 1500 °C leads to defect-free, fully dense m...
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Elsevier
2025-06-01
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| Series: | Open Ceramics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666539525000513 |
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| author | Dariia Chernomorets Vojtěch Nečina Pietro Galizia Roman Yavetskiy Jan Hostaša |
| author_facet | Dariia Chernomorets Vojtěch Nečina Pietro Galizia Roman Yavetskiy Jan Hostaša |
| author_sort | Dariia Chernomorets |
| collection | DOAJ |
| description | The synergistic effect of spark plasma sintering (SPS) and 0–15 mol. % of ZrO₂ doping on the microstructure, mechanical and optical properties of Y2O3 transparent ceramics was investigated. ZrO2-doped Y2O3 were obtained by SPS at 1300–1600 °C. Sintering at 1500 °C leads to defect-free, fully dense material with submicron grain size. The grain size of ceramics decreases from 5.2 to 0.11 µm for Y0Z and Y15Z, respectively, since ZrO2 acts as a grain growth inhibitor. The optimal concentration of ZrO2 to achieve the highest transparency of yttria is 3 mol. % (82.5 % for λ=5 μm). Increasing concentration of Zr4+ ions increases the number of interstitials Oi″, leading to a less efficient elimination of porosity. Vickers microhardness increased from 7.06 to 11.17 GPa with an increase in ZrO2 concentration, while opposite behavior was observed for fracture toughness. The influence of grain size and ZrO2 concentration on elastic modulus, shear modulus and Poisson’s ratio was not revealed. |
| format | Article |
| id | doaj-art-11d0bd6a892c4c40a2ce3cbee084e7f9 |
| institution | Kabale University |
| issn | 2666-5395 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Open Ceramics |
| spelling | doaj-art-11d0bd6a892c4c40a2ce3cbee084e7f92025-08-20T03:45:28ZengElsevierOpen Ceramics2666-53952025-06-012210078410.1016/j.oceram.2025.100784Y2O3 transparent nanoceramics via SPS and ZrO2-dopingDariia Chernomorets0Vojtěch Nečina1Pietro Galizia2Roman Yavetskiy3Jan Hostaša4Institute for Single Crystals of the National Academy of Science of Ukraine, 60 Nauky Ave., Kharkiv, 61072, Ukraine; CNR ISSMC, Institute of Science, Technology and Sustainability for Ceramics, Via Granarolo 64, Faenza, 48018, Italy; Corresponding author.Department of Glass and Ceramics, University of Chemistry and Technology, Prague, Technická 5, 166 28, Prague 6, Czech RepublicCNR ISSMC, Institute of Science, Technology and Sustainability for Ceramics, Via Granarolo 64, Faenza, 48018, ItalyInstitute for Single Crystals of the National Academy of Science of Ukraine, 60 Nauky Ave., Kharkiv, 61072, UkraineCNR ISSMC, Institute of Science, Technology and Sustainability for Ceramics, Via Granarolo 64, Faenza, 48018, ItalyThe synergistic effect of spark plasma sintering (SPS) and 0–15 mol. % of ZrO₂ doping on the microstructure, mechanical and optical properties of Y2O3 transparent ceramics was investigated. ZrO2-doped Y2O3 were obtained by SPS at 1300–1600 °C. Sintering at 1500 °C leads to defect-free, fully dense material with submicron grain size. The grain size of ceramics decreases from 5.2 to 0.11 µm for Y0Z and Y15Z, respectively, since ZrO2 acts as a grain growth inhibitor. The optimal concentration of ZrO2 to achieve the highest transparency of yttria is 3 mol. % (82.5 % for λ=5 μm). Increasing concentration of Zr4+ ions increases the number of interstitials Oi″, leading to a less efficient elimination of porosity. Vickers microhardness increased from 7.06 to 11.17 GPa with an increase in ZrO2 concentration, while opposite behavior was observed for fracture toughness. The influence of grain size and ZrO2 concentration on elastic modulus, shear modulus and Poisson’s ratio was not revealed.http://www.sciencedirect.com/science/article/pii/S2666539525000513Y2O3Transparent ceramicsSpark plasma sinteringMechanical propertiesZrO2 |
| spellingShingle | Dariia Chernomorets Vojtěch Nečina Pietro Galizia Roman Yavetskiy Jan Hostaša Y2O3 transparent nanoceramics via SPS and ZrO2-doping Open Ceramics Y2O3 Transparent ceramics Spark plasma sintering Mechanical properties ZrO2 |
| title | Y2O3 transparent nanoceramics via SPS and ZrO2-doping |
| title_full | Y2O3 transparent nanoceramics via SPS and ZrO2-doping |
| title_fullStr | Y2O3 transparent nanoceramics via SPS and ZrO2-doping |
| title_full_unstemmed | Y2O3 transparent nanoceramics via SPS and ZrO2-doping |
| title_short | Y2O3 transparent nanoceramics via SPS and ZrO2-doping |
| title_sort | y2o3 transparent nanoceramics via sps and zro2 doping |
| topic | Y2O3 Transparent ceramics Spark plasma sintering Mechanical properties ZrO2 |
| url | http://www.sciencedirect.com/science/article/pii/S2666539525000513 |
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