Tensile properties of domestic Al2O3f/Al2O3 composite at room temperature and 1000 ℃
Continuous alumina fiber reinforced alumina composite （Al2O3f/Al2O3） is an ideal material for developing high-performance aero-engine hot section components. In this study， the room-temperature and 1000 ℃ tensile mechanical properties of domestic Al2O3f/Al2O3 are investigated. The microscopic morpho...
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Journal of Materials Engineering
2025-01-01
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| Series: | Cailiao gongcheng |
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| Online Access: | https://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2024.000420 |
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| author | ZHANG Ke XU Ping ZHANG Chao LI Chenchen YING Wenqing XING Ning LI Mei ZHANG Chengyu |
| author_facet | ZHANG Ke XU Ping ZHANG Chao LI Chenchen YING Wenqing XING Ning LI Mei ZHANG Chengyu |
| author_sort | ZHANG Ke |
| collection | DOAJ |
| description | Continuous alumina fiber reinforced alumina composite （Al2O3f/Al2O3） is an ideal material for developing high-performance aero-engine hot section components. In this study， the room-temperature and 1000 ℃ tensile mechanical properties of domestic Al2O3f/Al2O3 are investigated. The microscopic morphology and fracture morphology of tensile specimens are observed by SEM. The microstructure is observed by TEM. The tensile strength is analyzed using the Weibull distribution， and the fiber/matrix interfacial shear strength is obtained by the fiber push-in method. The results show that the room-temperature tensile strength of domestic Al2O3f/Al2O3 is （257±31） MPa while the tensile strength at 1000 ℃ is 78% of room temperature strength， reaching the level of foreign Nextel610/Al2O3. The interfacial bonding is the main factor affecting the tensile strength. High tensile strength with low interfacial bonding strength， results in long and dispersed fiber pull-out. Low tensile strength with high interfacial bonding strength， results in fiber bundle breakage and shorter fiber pull-out. |
| format | Article |
| id | doaj-art-3fa98fb21b7c4c1a8333e633f198d23f |
| institution | Kabale University |
| issn | 1001-4381 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj-art-3fa98fb21b7c4c1a8333e633f198d23f2025-01-21T09:44:41ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43812025-01-0153119520110.11868/j.issn.1001-4381.2024.0004201001-4381（2025）01-0195-07Tensile properties of domestic Al2O3f/Al2O3 composite at room temperature and 1000 ℃ZHANG Ke0XU Ping1ZHANG Chao2LI Chenchen3YING Wenqing4XING Ning5LI Mei6ZHANG Chengyu7Science and Technology on Thermostructural Composite Materials Laboratory，Northwestern Polytechnical University，Xi’an 710072， ChinaShenyang Aircraft Design and Research Institute，Aviation Industry Corporation of China，Shenyang 110035，ChinaInstitute of Extreme Mechanics，School of Aeronautics，Northwestern Polytechnical University，Xi’an 710072，ChinaShenyang Aircraft Design and Research Institute，Aviation Industry Corporation of China，Shenyang 110035，ChinaScience and Technology on Thermostructural Composite Materials Laboratory，Northwestern Polytechnical University，Xi’an 710072， ChinaScience and Technology on Thermostructural Composite Materials Laboratory，Northwestern Polytechnical University，Xi’an 710072， ChinaScience and Technology on Thermostructural Composite Materials Laboratory，Northwestern Polytechnical University，Xi’an 710072， ChinaScience and Technology on Thermostructural Composite Materials Laboratory，Northwestern Polytechnical University，Xi’an 710072， ChinaContinuous alumina fiber reinforced alumina composite （Al2O3f/Al2O3） is an ideal material for developing high-performance aero-engine hot section components. In this study， the room-temperature and 1000 ℃ tensile mechanical properties of domestic Al2O3f/Al2O3 are investigated. The microscopic morphology and fracture morphology of tensile specimens are observed by SEM. The microstructure is observed by TEM. The tensile strength is analyzed using the Weibull distribution， and the fiber/matrix interfacial shear strength is obtained by the fiber push-in method. The results show that the room-temperature tensile strength of domestic Al2O3f/Al2O3 is （257±31） MPa while the tensile strength at 1000 ℃ is 78% of room temperature strength， reaching the level of foreign Nextel610/Al2O3. The interfacial bonding is the main factor affecting the tensile strength. High tensile strength with low interfacial bonding strength， results in long and dispersed fiber pull-out. Low tensile strength with high interfacial bonding strength， results in fiber bundle breakage and shorter fiber pull-out.https://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2024.000420alumina fiberal2o3f/al2o3 compositetensile propertystrength dispersioninterfacial bonding strength |
| spellingShingle | ZHANG Ke XU Ping ZHANG Chao LI Chenchen YING Wenqing XING Ning LI Mei ZHANG Chengyu Tensile properties of domestic Al2O3f/Al2O3 composite at room temperature and 1000 ℃ Cailiao gongcheng alumina fiber al2o3f/al2o3 composite tensile property strength dispersion interfacial bonding strength |
| title | Tensile properties of domestic Al2O3f/Al2O3 composite at room temperature and 1000 ℃ |
| title_full | Tensile properties of domestic Al2O3f/Al2O3 composite at room temperature and 1000 ℃ |
| title_fullStr | Tensile properties of domestic Al2O3f/Al2O3 composite at room temperature and 1000 ℃ |
| title_full_unstemmed | Tensile properties of domestic Al2O3f/Al2O3 composite at room temperature and 1000 ℃ |
| title_short | Tensile properties of domestic Al2O3f/Al2O3 composite at room temperature and 1000 ℃ |
| title_sort | tensile properties of domestic al2o3f al2o3 composite at room temperature and 1000 ℃ |
| topic | alumina fiber al2o3f/al2o3 composite tensile property strength dispersion interfacial bonding strength |
| url | https://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2024.000420 |
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