Effect of temperature on the mechanical behaviour of an oxide/oxide composite

Débarre, A.; Julian-Jankowiak, Aurélie; Parlier, M.; Renollet, Y.; Pujol, Guillaume; Boussuge, M.

doi:10.1016/j.jeurceramsoc.2022.08.002

Cited by 9 publications

(1 citation statement)

References 30 publications

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“…This was believed to result from matrix densification after aging treatment. [ 21 ] As the raw material for the oxide matrix, the α‐Al 2 O 3 powders had a small size and a high surface area, which led to its high sintering activity. Therefore, the porous matrix could be further densified during thermal aging.…”

Section: Resultsmentioning

confidence: 99%

Microstructure and Mechanical Properties of a Three‐Dimensional Oxide/Oxide Composite after Long‐Term Thermal Exposure

Sun,

Tian,

Liu

et al. 2024

Adv Eng Mater

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Herein, a three‐dimensional (3D) oxide fiber reinforced oxide matrix (oxide/oxide) composite is fabricated via slurry infiltration and sintering process. Subsequently, the effects of thermal aging on the microstructure and mechanical properties of the 3D oxide/oxide composite at 900 and 1100 °C are investigated. Experimental results indicate that the thermal aging affects the matrix microstructures and fiber/matrix interface. The elastic modulus of the matrix and interfacial shear strength increases with aging temperature and time. Aging treatment at 900 °C for 100 and 300 h results in a moderate decrease in the flexural strength and fracture toughness but improves the delamination resistance, whereas that at 1100 °C for 100 h lead to a significant decrease in the flexural strength and fracture toughness. The changes in mechanical properties might be attributed to matrix densification and enhanced interfacial bonding.

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Section: Resultsmentioning

confidence: 99%