Ti3AlC2−yNy carbonitride MAX phase solid solutions with tunable mechanical, thermal, and electrical properties
Changing the N content in the Ti3AlC2−yNy MAX phase solid solutions allows for the fine-tuning of their properties. However, systematic studies on the synthesis and properties of Ti3AlC2−yNy solid solution bulks have not been reported thus far. Here, previously reported Ti3AlC2−yNy solid solution bu...
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2024-09-01
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| Series: | Journal of Advanced Ceramics |
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| Online Access: | https://www.sciopen.com/article/10.26599/JAC.2024.9220951 |
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| author | Weiwei Zhang Shibo Li Shukai Fan Xuejin Zhang Xiachen Fan Guoping Bei |
| author_facet | Weiwei Zhang Shibo Li Shukai Fan Xuejin Zhang Xiachen Fan Guoping Bei |
| author_sort | Weiwei Zhang |
| collection | DOAJ |
| description | Changing the N content in the Ti3AlC2−yNy MAX phase solid solutions allows for the fine-tuning of their properties. However, systematic studies on the synthesis and properties of Ti3AlC2−yNy solid solution bulks have not been reported thus far. Here, previously reported Ti3AlC2−yNy solid solution bulks (y = 0.3, 0.5, 0.8, and 1.0) were synthesized via hot pressing of their powder counterparts under optimized conditions. The prepared Ti3AlC2−yNy bulks are dense and have a fine microstructure with grain sizes of 6–8 μm. The influence of the N content on the mechanical properties, electrical conductivities, and coefficients of thermal expansion (CTEs) of the prepared Ti3AlC2−yNy bulk materials was clarified. The flexural strength and Vickers hardness values increased with increasing N content, suggesting that solid solution strengthening effectively improved the mechanical properties of Ti3AlC2−yNy. Ti3AlCN (y = 1) had the highest Vickers hardness and flexural strength among the studied samples, reaching 5.54 GPa and 550 MPa, respectively. However, the electrical conductivity and CTEs of the Ti3AlC2−yNy solid solutions decreased with increasing N content, from 8.93×10−6 to 7.69×10−6 K−1 and from 1.33×106 to 0.95×106 S/m, respectively. This work demonstrated the tunable properties of Ti3AlC2−yNy solid solutions with varying N contents and widened the MAX phase family for fundamental studies and applications. |
| format | Article |
| id | doaj-art-e3391511f26844e7912e698d1ccbddd7 |
| institution | OA Journals |
| issn | 2226-4108 2227-8508 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Journal of Advanced Ceramics |
| spelling | doaj-art-e3391511f26844e7912e698d1ccbddd72025-08-20T02:13:56ZengTsinghua University PressJournal of Advanced Ceramics2226-41082227-85082024-09-011391473148110.26599/JAC.2024.9220951Ti3AlC2−yNy carbonitride MAX phase solid solutions with tunable mechanical, thermal, and electrical propertiesWeiwei Zhang0Shibo Li1Shukai Fan2Xuejin Zhang3Xiachen Fan4Guoping Bei5Center of Materials Science and Engineering, School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, ChinaCenter of Materials Science and Engineering, School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, ChinaChina Porcelain Fuchi (Suzhou) High Tech Nano Materials Co., Ltd., Suzhou 215100, ChinaCenter of Materials Science and Engineering, School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, ChinaCenter of Materials Science and Engineering, School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, ChinaChina Porcelain Fuchi (Suzhou) High Tech Nano Materials Co., Ltd., Suzhou 215100, ChinaChanging the N content in the Ti3AlC2−yNy MAX phase solid solutions allows for the fine-tuning of their properties. However, systematic studies on the synthesis and properties of Ti3AlC2−yNy solid solution bulks have not been reported thus far. Here, previously reported Ti3AlC2−yNy solid solution bulks (y = 0.3, 0.5, 0.8, and 1.0) were synthesized via hot pressing of their powder counterparts under optimized conditions. The prepared Ti3AlC2−yNy bulks are dense and have a fine microstructure with grain sizes of 6–8 μm. The influence of the N content on the mechanical properties, electrical conductivities, and coefficients of thermal expansion (CTEs) of the prepared Ti3AlC2−yNy bulk materials was clarified. The flexural strength and Vickers hardness values increased with increasing N content, suggesting that solid solution strengthening effectively improved the mechanical properties of Ti3AlC2−yNy. Ti3AlCN (y = 1) had the highest Vickers hardness and flexural strength among the studied samples, reaching 5.54 GPa and 550 MPa, respectively. However, the electrical conductivity and CTEs of the Ti3AlC2−yNy solid solutions decreased with increasing N content, from 8.93×10−6 to 7.69×10−6 K−1 and from 1.33×106 to 0.95×106 S/m, respectively. This work demonstrated the tunable properties of Ti3AlC2−yNy solid solutions with varying N contents and widened the MAX phase family for fundamental studies and applications.https://www.sciopen.com/article/10.26599/JAC.2024.9220951max solid solutionsti3alc2−ynymicrostructuremechanical propertieselectrical conductivitythermal expansion |
| spellingShingle | Weiwei Zhang Shibo Li Shukai Fan Xuejin Zhang Xiachen Fan Guoping Bei Ti3AlC2−yNy carbonitride MAX phase solid solutions with tunable mechanical, thermal, and electrical properties Journal of Advanced Ceramics max solid solutions ti3alc2−yny microstructure mechanical properties electrical conductivity thermal expansion |
| title | Ti3AlC2−yNy carbonitride MAX phase solid solutions with tunable mechanical, thermal, and electrical properties |
| title_full | Ti3AlC2−yNy carbonitride MAX phase solid solutions with tunable mechanical, thermal, and electrical properties |
| title_fullStr | Ti3AlC2−yNy carbonitride MAX phase solid solutions with tunable mechanical, thermal, and electrical properties |
| title_full_unstemmed | Ti3AlC2−yNy carbonitride MAX phase solid solutions with tunable mechanical, thermal, and electrical properties |
| title_short | Ti3AlC2−yNy carbonitride MAX phase solid solutions with tunable mechanical, thermal, and electrical properties |
| title_sort | ti3alc2 yny carbonitride max phase solid solutions with tunable mechanical thermal and electrical properties |
| topic | max solid solutions ti3alc2−yny microstructure mechanical properties electrical conductivity thermal expansion |
| url | https://www.sciopen.com/article/10.26599/JAC.2024.9220951 |
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