Effect of sintering temperature in argon atmosphere on microstructure and properties of 3D printed alumina ceramic cores
Abstract Alumina ceramics with different sintering temperatures in argon atmosphere were obtained using stereolithography-based 3D printing. The effects of sintering temperature on microstructure and physical and mechanical properties were investigated. The results show that the average particle siz...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2020-04-01
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| Series: | Journal of Advanced Ceramics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/s40145-020-0362-0 |
| _version_ | 1827853238904291328 |
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| author | He Li Yongsheng Liu Yansong Liu Qingfeng Zeng Kehui Hu Zhigang Lu Jingjing Liang |
| author_facet | He Li Yongsheng Liu Yansong Liu Qingfeng Zeng Kehui Hu Zhigang Lu Jingjing Liang |
| author_sort | He Li |
| collection | DOAJ |
| description | Abstract Alumina ceramics with different sintering temperatures in argon atmosphere were obtained using stereolithography-based 3D printing. The effects of sintering temperature on microstructure and physical and mechanical properties were investigated. The results show that the average particle size, shrinkage, bulk density, crystallite size, flexural strength, Vickers hardness, and nanoindentation hardness increased with the increase in sintering temperature, whereas the open porosity decreased with increasing sintering temperature. No change was observed in phase composition, chemical bond, atomic ratio, and surface roughness. For the sintered samples, the shrinkage in Z direction is much greater than that in X or Y direction. The optimum sintering temperature in argon atmosphere is 1350 °C with a shrinkage of 3.0%, 3.2%, and 5.5% in X, Y, and Z directions, respectively, flexural strength of 26.7 MPa, Vickers hardness of 198.5 HV, nanoindentation hardness of 33.1 GPa, bulk density of 2.5 g/cm3, and open porosity of 33.8%. The optimum sintering temperature was 70 °C higher than that sintering in air atmosphere when achieved the similar properties. |
| first_indexed | 2024-03-12T11:03:20Z |
| format | Article |
| id | doaj.art-4e1b66ef2f9940018fd0534f20d32386 |
| institution | Directory Open Access Journal |
| issn | 2226-4108 2227-8508 |
| language | English |
| last_indexed | 2024-03-12T11:03:20Z |
| publishDate | 2020-04-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Journal of Advanced Ceramics |
| spelling | doaj.art-4e1b66ef2f9940018fd0534f20d323862023-09-02T04:30:50ZengTsinghua University PressJournal of Advanced Ceramics2226-41082227-85082020-04-019222023110.1007/s40145-020-0362-0Effect of sintering temperature in argon atmosphere on microstructure and properties of 3D printed alumina ceramic coresHe Li0Yongsheng Liu1Yansong Liu2Qingfeng Zeng3Kehui Hu4Zhigang Lu5Jingjing Liang6Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical UniversityScience and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical UniversityScience and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical UniversityScience and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical UniversityDepartment of Mechanical Engineering, Tsinghua UniversityDepartment of Mechanical Engineering, Tsinghua UniversityInstitute of Metal Research, Chinese Academy of SciencesAbstract Alumina ceramics with different sintering temperatures in argon atmosphere were obtained using stereolithography-based 3D printing. The effects of sintering temperature on microstructure and physical and mechanical properties were investigated. The results show that the average particle size, shrinkage, bulk density, crystallite size, flexural strength, Vickers hardness, and nanoindentation hardness increased with the increase in sintering temperature, whereas the open porosity decreased with increasing sintering temperature. No change was observed in phase composition, chemical bond, atomic ratio, and surface roughness. For the sintered samples, the shrinkage in Z direction is much greater than that in X or Y direction. The optimum sintering temperature in argon atmosphere is 1350 °C with a shrinkage of 3.0%, 3.2%, and 5.5% in X, Y, and Z directions, respectively, flexural strength of 26.7 MPa, Vickers hardness of 198.5 HV, nanoindentation hardness of 33.1 GPa, bulk density of 2.5 g/cm3, and open porosity of 33.8%. The optimum sintering temperature was 70 °C higher than that sintering in air atmosphere when achieved the similar properties.http://link.springer.com/article/10.1007/s40145-020-0362-0sintering temperatureargon atmospherealumina ceramicsmicrostructurestereolithography |
| spellingShingle | He Li Yongsheng Liu Yansong Liu Qingfeng Zeng Kehui Hu Zhigang Lu Jingjing Liang Effect of sintering temperature in argon atmosphere on microstructure and properties of 3D printed alumina ceramic cores Journal of Advanced Ceramics sintering temperature argon atmosphere alumina ceramics microstructure stereolithography |
| title | Effect of sintering temperature in argon atmosphere on microstructure and properties of 3D printed alumina ceramic cores |
| title_full | Effect of sintering temperature in argon atmosphere on microstructure and properties of 3D printed alumina ceramic cores |
| title_fullStr | Effect of sintering temperature in argon atmosphere on microstructure and properties of 3D printed alumina ceramic cores |
| title_full_unstemmed | Effect of sintering temperature in argon atmosphere on microstructure and properties of 3D printed alumina ceramic cores |
| title_short | Effect of sintering temperature in argon atmosphere on microstructure and properties of 3D printed alumina ceramic cores |
| title_sort | effect of sintering temperature in argon atmosphere on microstructure and properties of 3d printed alumina ceramic cores |
| topic | sintering temperature argon atmosphere alumina ceramics microstructure stereolithography |
| url | http://link.springer.com/article/10.1007/s40145-020-0362-0 |
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