TU Darmstadt / ULB / TUbiblio

Self-healing enhancing tensile creep of 2D-satin weave SiC/(SiC-SiBCN)x composites in wet oxygen environment

Luan, Xingang and Xu, Xinming and Wang, Lei and Zou, Yun and Cheng, Laifei and 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, (10), 40. Elsevier, pp. 3509-3519, ISSN 0955-2219, e-ISSN 1873-619X,
DOI: 10.1016/j.jeurceramsoc.2020.03.052,
[Online-Edition: https://www.sciencedirect.com/science/article/abs/pii/S09552...],
[Article]

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 and Xu, Xinming and Wang, Lei and Zou, Yun and Cheng, Laifei and Riedel, Ralf
Title: Self-healing enhancing tensile creep of 2D-satin weave SiC/(SiC-SiBCN)x composites in wet oxygen environment
Language: English
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.

Journal or Publication Title: Journal of the European Ceramic Society
Number: 10
Publisher: Elsevier
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
DOI: 10.1016/j.jeurceramsoc.2020.03.052
Official URL: https://www.sciencedirect.com/science/article/abs/pii/S09552...
Projects: National Key Technology R&D Program, Grant Number 2017YFB0703200, National Natural Science Foundation of China, Grant Numbers 51821091, 51872229, 91960105
Export:
Suche nach Titel in: TUfind oder in Google
Send an inquiry Send an inquiry

Options (only for editors)

View Item View Item