Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives
Alumina-based composites were fabricated by reaction sintering from two different sintering powder mixtures: alumina with silica (SiO2) and alumina with silicon carbide (SiC; to allow oxidation to form SiO2). After sintering, SiO2 underwent complete reaction to form alumina/mullite composites. In te...
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| Format: | Article |
| Language: | English |
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De Gruyter
2017-07-01
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| Series: | Science and Engineering of Composite Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/secm-2014-0353 |
| _version_ | 1818682628800249856 |
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| author | Limpichaipanit Apichart Jiansirisomboon Sukanda Tunkasiri Tawee |
| author_facet | Limpichaipanit Apichart Jiansirisomboon Sukanda Tunkasiri Tawee |
| author_sort | Limpichaipanit Apichart |
| collection | DOAJ |
| description | Alumina-based composites were fabricated by reaction sintering from two different sintering powder mixtures: alumina with silica (SiO2) and alumina with silicon carbide (SiC; to allow oxidation to form SiO2). After sintering, SiO2 underwent complete reaction to form alumina/mullite composites. In terms of microstructure, the density and grain size of ceramic samples were investigated. The density of the composites prepared by alumina and SiC was lower than those of alumina and the composites prepared by alumina and SiO2. The grain size increased as the sintering temperature increased. In terms of mechanical properties, fracture surfaces, hardness, and fracture toughness were investigated. It was found that the fracture surface of alumina was rather intergranular, whereas the fracture surface of the composites was more transgranular. The hardness of the composites was higher than that of alumina at the same sintering temperature. However, the fracture toughness of the composites was not significantly different compared to that of alumina. |
| first_indexed | 2024-12-17T10:21:52Z |
| format | Article |
| id | doaj.art-a01411a3d630453db38c5d5f8a20b247 |
| institution | Directory Open Access Journal |
| issn | 0792-1233 2191-0359 |
| language | English |
| last_indexed | 2024-12-17T10:21:52Z |
| publishDate | 2017-07-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Science and Engineering of Composite Materials |
| spelling | doaj.art-a01411a3d630453db38c5d5f8a20b2472022-12-21T21:52:47ZengDe GruyterScience and Engineering of Composite Materials0792-12332191-03592017-07-0124449550010.1515/secm-2014-0353Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additivesLimpichaipanit Apichart0Jiansirisomboon Sukanda1Tunkasiri Tawee2Faculty of Science, Department of Physics and Materials Science, Chiang Mai University, Chiang Mai, 50200, ThailandSchool of Ceramic Engineering, Institute of Engineering, Suranaree University of Technology, Nakorn Ratchasima, 30000, ThailandFaculty of Science, Department of Physics and Materials Science, Chiang Mai University, Chiang Mai, 50200, ThailandAlumina-based composites were fabricated by reaction sintering from two different sintering powder mixtures: alumina with silica (SiO2) and alumina with silicon carbide (SiC; to allow oxidation to form SiO2). After sintering, SiO2 underwent complete reaction to form alumina/mullite composites. In terms of microstructure, the density and grain size of ceramic samples were investigated. The density of the composites prepared by alumina and SiC was lower than those of alumina and the composites prepared by alumina and SiO2. The grain size increased as the sintering temperature increased. In terms of mechanical properties, fracture surfaces, hardness, and fracture toughness were investigated. It was found that the fracture surface of alumina was rather intergranular, whereas the fracture surface of the composites was more transgranular. The hardness of the composites was higher than that of alumina at the same sintering temperature. However, the fracture toughness of the composites was not significantly different compared to that of alumina.https://doi.org/10.1515/secm-2014-0353ceramicscompositefracturemechanical properties |
| spellingShingle | Limpichaipanit Apichart Jiansirisomboon Sukanda Tunkasiri Tawee Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives Science and Engineering of Composite Materials ceramics composite fracture mechanical properties |
| title | Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives |
| title_full | Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives |
| title_fullStr | Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives |
| title_full_unstemmed | Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives |
| title_short | Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives |
| title_sort | sintering temperature microstructure property relationships of alumina matrix composites with silicon carbide and silica additives |
| topic | ceramics composite fracture mechanical properties |
| url | https://doi.org/10.1515/secm-2014-0353 |
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