Effect of Sintering Temperature on the Interfacial and Mechanical Properties of SiC Fiber Reinforced Mullite Matrix Composites

Tian, Zhenghao; Sun, Xun; Deng, Guihang; Jiang, Ru; Liu, Haitao; Liu, Yunxin

doi:10.1007/s10443-021-09897-9

Cited by 5 publications

(1 citation statement)

References 27 publications

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“…[22][23][24] Therefore, the sintering temperature is a key parameter to tailor the microstructure and mechanical properties of CMCs. [25] The correlation between micro-and macromechanical properties of several CMCs has been deeply investigated in our previous works. [26][27][28][29] However, few studies focused on the effect of sintering temperature on mechanical behavior of the oxide/oxide composites with porous matrix.…”

Section: Introductionmentioning

confidence: 99%

Effect of Sintering Temperature on Mechanical Behaviors of an Oxide Fiber‐Reinforced Oxide Matrix Composite

et al. 2023

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Sintering temperature can significantly affect the mechanical behaviors of ceramic matrix composites. Herein, the effect of sintering temperature (900–1200 °C) on micro‐ and macromechanical properties of an oxide fiber‐reinforced oxide matrix (oxide/oxide) composite is investigated. The crack propagation path is predicted by the He–Hutchinson model. Results show that the elastic modulus of matrix and interfacial shear strength increase with sintering temperature. The propagating crack converts from deflection along the interface to direct penetration into the matrix at 1200 °C. With increase of the sintering temperature, the flexural strength and interlaminar shear strength monotonically increase, while the fracture toughness increases and then decreases at 1200 °C. A good balance between the fracture strength and fracture toughness is achieved on the 1100 °C sintered composite, which possesses a high flexural strength of ≈276.7 MPa, a high interlaminar shear strength of ≈17.2 MPa, and a high fracture toughness of ≈13.9 MPa m1/2. The study offers a new sight in deep understand of the preparation and applicability of oxide/oxide composite at high temperatures.

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