C fiber toughening Al2O3-ZrO2 eutectic via ultrasonic-assisted directed laser deposition
| Autor: | Guangyi Ma, Shuai Yan, Yunfei Huang, Ni Liu, Fangyong Niu, Yanning Zhang, Dongjiang Wu |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Mechanical Engineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Laser 01 natural sciences Toughening 0104 chemical sciences law.invention Fracture toughness Mechanics of Materials law Indentation Deposition (phase transition) General Materials Science Fiber Composite material 0210 nano-technology Nanoscopic scale Eutectic system |
| Zdroj: | Materials Letters. 235:228-231 |
| ISSN: | 0167-577X |
| Popis: | Carbon fiber (C fiber) toughening nanoscale Al2O3-ZrO2 eutectic was prepared by ultrasonic-assisted directed laser deposition (DLD). The eutectic spacing detected by TEM was 50 ± 5 nm, which was 5–30% of the Al2O3-ZrO2 eutectic. The reasons for the decrease of eutectic spacing were analyzed from two aspects: ultrasonic-assisted and C fiber addition. The fracture toughness was 8.7 ± 0.2 MPa m1/2 measured by indentation crack length, which was about 2.5 times higher than Al2O3-ZrO2 eutectic. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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