Monotonic tension behavior of 2D woven oxide/oxide ceramic matrix composites at ultra-high temperature. Issue 6 (June 2021)

• Record Type: Journal Article
• Authors: Wen, Z.X.; Zhang, X.H.; Yue, X.W.; Zhang, C.J.; Zhang, Y.L.; Yue, Z.F.
• Is Part Of: Journal of the European Ceramic Society. Volume 41:Issue 6(2021)
• Page Start: 3535
• Page End: 3546
• Publication Date: 2021-06
• Subjects: CMCs -- Oxide/oxide composites -- 2D woven -- Elevated temperature -- Monotonic tension behavior -- Finite element method; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2021.01.001
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: The research on mechanical behavior and failure analysis of oxide/oxide CMC at ultra-high temperatures can broaden its application scope. The present work studied monotonic tension behavior of the oxide/oxide CMC at 800 °C∼1200 °C and two tensile rates (i.e. 5 mm/min and 0.5 mm/min). The uniaxial tensile test, fracture morphology characterization and finite element analysis were preformed to reveal the deformation and failure mechanisms of the oxide/oxide CMC at ultra-high temperature. The results show that the mechanical properties of the oxide/oxide CMC are sensitive to the temperatures and tensile rates. The stress-strain curves are almost linear at the high tensile rate and nonlinear at the low tensile rate. The ultimate tensile strength decreases significantly at low tensile rate and for temperatures higher than 1100 °C. The mechanical properties of the material are principally determined by oxide fiber/oxide matrix interface strength under low temperature and high-stress conditions, while by interlayer bonding strength under high temperature and low-stress conditions.