Luan, Xingang ; Xu, Xinming ; Wang, Lei ; Zou, Yun ; Cheng, Laifei ; Riedel, Ralf (2020)
Self-healing enhancing tensile creep of 2D-satin weave SiC/(SiC-SiBCN)x composites in wet oxygen environment.
In: Journal of the European Ceramic Society, 40 (10)
doi: 10.1016/j.jeurceramsoc.2020.03.052
Article, Bibliographie
Abstract
In order to further expand the application of SiC/SiC composites in the hot-end components for advanced aerospace engines, a self-healing SiC/(SiC-SiBCN)x composite prepared by CVI + PIOP has been tested for their creep behavior at 1200 degrees C with the partial pressure of 12 kPa H2O: 8 kPa O-2: 80 kPa Ar. For the samples tested under low stresses, the load is borne by a load-bearing region, so that the secondary stage of creep curves can be subdivided into several small steps. Besides, it is found that the number of defects in SiC/(SiC-SiBCN)x composites is predominantly related to the stress level while the size of the defects is related to the creep time. Our findings provide important analytical data related to the creep behavior of the SiC/(SiC-SiBCN)x composite material and contribute to the further development of CMCs with outstanding mechanical properties and corrosion resistance even under harsh environments.
| Item Type: | Article |
|---|---|
| Erschienen: | 2020 |
| Creators: | Luan, Xingang ; Xu, Xinming ; Wang, Lei ; Zou, Yun ; Cheng, Laifei ; Riedel, Ralf |
| Type of entry: | Bibliographie |
| Title: | Self-healing enhancing tensile creep of 2D-satin weave SiC/(SiC-SiBCN)x composites in wet oxygen environment |
| Language: | English |
| Date: | August 2020 |
| Publisher: | Elsevier |
| Journal or Publication Title: | Journal of the European Ceramic Society |
| Volume of the journal: | 40 |
| Issue Number: | 10 |
| DOI: | 10.1016/j.jeurceramsoc.2020.03.052 |
| URL / URN: | https://www.sciencedirect.com/science/article/abs/pii/S09552... |
| Abstract: | In order to further expand the application of SiC/SiC composites in the hot-end components for advanced aerospace engines, a self-healing SiC/(SiC-SiBCN)x composite prepared by CVI + PIOP has been tested for their creep behavior at 1200 degrees C with the partial pressure of 12 kPa H2O: 8 kPa O-2: 80 kPa Ar. For the samples tested under low stresses, the load is borne by a load-bearing region, so that the secondary stage of creep curves can be subdivided into several small steps. Besides, it is found that the number of defects in SiC/(SiC-SiBCN)x composites is predominantly related to the stress level while the size of the defects is related to the creep time. Our findings provide important analytical data related to the creep behavior of the SiC/(SiC-SiBCN)x composite material and contribute to the further development of CMCs with outstanding mechanical properties and corrosion resistance even under harsh environments. |
| Uncontrolled Keywords: | SiC/SiC; SiBCN; Creep; Wet oxygen environment SILICON-CARBIDE COMPOSITES; SIC-MATRIX COMPOSITES; OXIDATION BEHAVIOR; C/SIC COMPOSITES; FATIGUE BEHAVIOR; HIGH-TEMPERATURE; DAMAGE; MECHANISMS |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids |
| Date Deposited: | 14 May 2020 06:10 |
| Last Modified: | 14 May 2020 06:10 |
| PPN: | |
| Projects: | National Key Technology R&D Program, Grant Number 2017YFB0703200, National Natural Science Foundation of China, Grant Numbers 51821091, 51872229, 91960105 |
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