Radiation shielding and mechanical properties of mullite-zirconia composites fabricated from investment-casting shell waste
Low-cost zirconia-toughened mullite composites were prepared from investment casting shell waste and alumina. The influence of sintering temperature on the composites' properties, including crystalline phase composition, microstructure, degrees of densification, mechanical properties, and radia...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423008852 |
| _version_ | 1827920211714506752 |
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| author | Celal Avcıoğlu Maged F. Bekheet R. Artır |
| author_facet | Celal Avcıoğlu Maged F. Bekheet R. Artır |
| author_sort | Celal Avcıoğlu |
| collection | DOAJ |
| description | Low-cost zirconia-toughened mullite composites were prepared from investment casting shell waste and alumina. The influence of sintering temperature on the composites' properties, including crystalline phase composition, microstructure, degrees of densification, mechanical properties, and radiation shielding characteristics, was investigated. The results show that the higher the sintering temperature, the higher the degree of densification is, improving the mechanical and radiation shielding properties of prepared composites. The mullite-zirconia composite sintered at 1600 °C presents a good mechanical strength, with flexural and compressive strength values of 190 and 308 MPa, respectively. These values are comparable to or even better than mullite ceramics prepared from other waste materials. Furthermore, the composites' gamma-ray and neutron attenuation characteristics suggest that they can be promising as radiation shields. |
| first_indexed | 2024-03-13T04:09:23Z |
| format | Article |
| id | doaj.art-74adaa7d22ed44149d0b438b7bdc7b57 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-13T04:09:23Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-74adaa7d22ed44149d0b438b7bdc7b572023-06-21T06:57:05ZengElsevierJournal of Materials Research and Technology2238-78542023-05-012458835895Radiation shielding and mechanical properties of mullite-zirconia composites fabricated from investment-casting shell wasteCelal Avcıoğlu0Maged F. Bekheet1R. Artır2Technische Universität Berlin, Faculty III Process Sciences, Institute of Material Science and Technology, Fachgebiet Keramische Werkstoffe / Chair of Advanced Ceramic Materials, Straße des 17. Juni 135, 10623, Berlin, Germany; Marmara University, Faculty of Engineering, Department of Metallurgical and Materials Engineering, 34722, Istanbul, Turkey; Corresponding author.Technische Universität Berlin, Faculty III Process Sciences, Institute of Material Science and Technology, Fachgebiet Keramische Werkstoffe / Chair of Advanced Ceramic Materials, Straße des 17. Juni 135, 10623, Berlin, GermanyMarmara University, Faculty of Engineering, Department of Metallurgical and Materials Engineering, 34722, Istanbul, TurkeyLow-cost zirconia-toughened mullite composites were prepared from investment casting shell waste and alumina. The influence of sintering temperature on the composites' properties, including crystalline phase composition, microstructure, degrees of densification, mechanical properties, and radiation shielding characteristics, was investigated. The results show that the higher the sintering temperature, the higher the degree of densification is, improving the mechanical and radiation shielding properties of prepared composites. The mullite-zirconia composite sintered at 1600 °C presents a good mechanical strength, with flexural and compressive strength values of 190 and 308 MPa, respectively. These values are comparable to or even better than mullite ceramics prepared from other waste materials. Furthermore, the composites' gamma-ray and neutron attenuation characteristics suggest that they can be promising as radiation shields.http://www.sciencedirect.com/science/article/pii/S2238785423008852Mechanical propertiesInvestment casting shell wasteCeramic recyclingMullite zirconia ceramic compositeGamma radiation shielding |
| spellingShingle | Celal Avcıoğlu Maged F. Bekheet R. Artır Radiation shielding and mechanical properties of mullite-zirconia composites fabricated from investment-casting shell waste Journal of Materials Research and Technology Mechanical properties Investment casting shell waste Ceramic recycling Mullite zirconia ceramic composite Gamma radiation shielding |
| title | Radiation shielding and mechanical properties of mullite-zirconia composites fabricated from investment-casting shell waste |
| title_full | Radiation shielding and mechanical properties of mullite-zirconia composites fabricated from investment-casting shell waste |
| title_fullStr | Radiation shielding and mechanical properties of mullite-zirconia composites fabricated from investment-casting shell waste |
| title_full_unstemmed | Radiation shielding and mechanical properties of mullite-zirconia composites fabricated from investment-casting shell waste |
| title_short | Radiation shielding and mechanical properties of mullite-zirconia composites fabricated from investment-casting shell waste |
| title_sort | radiation shielding and mechanical properties of mullite zirconia composites fabricated from investment casting shell waste |
| topic | Mechanical properties Investment casting shell waste Ceramic recycling Mullite zirconia ceramic composite Gamma radiation shielding |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423008852 |
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