Accelerated failure of CMC (Ceramic Matrix Composites) structural components in aero engines occurs under oxidative vibrational environments. This study investigates the failure mechanisms of CMCs under high-temperature oxidative vibrational conditions. Experiments were conducted to measure the vibrational response of CMC plates at 1200°C in oxygenated, non-oxygenated, and non-vibrational environments. Combined with techniques such as Energy-Dispersive X-ray Spectroscopy (EDS) and thermogravimetric analysis, the failure mechanisms of CMCs in oxidative vibrational environments were elucidated. The research results indicate that oxidation leads to a decline in the mass and mechanical properties of CMCs, resulting in a reduction in the natural frequency and response amplitude of CMC structures. The presence of vibrational loads causes the opening of matrix cracks, accelerating the oxidation of fibers within the CMC, thereby leading to a more significant decline in CMC plates’ performance and dynamic response.
WangXGaoXZhangZ, et al.Advances in modifications and high-temperature applications of silicon carbide ceramic matrix composites in aerospace: a focused review. J Eur Ceram Soc2021; 41(9): 4671–4688.
2.
NaslainR. SiC-matrix composites: nonbrittle ceramics for thermo-structural application. Int J Appl Ceram Technol2005; 2(2): 75–84.
3.
WangPLiuFWangH, et al.A review of third generation SiC fibers and SiCf/SiC composites. J Mater Sci Technol2019; 35(12): 2743–2750.
4.
NaslainR. Design, preparation, and properties of non-oxide CMCs for application in engines and nuclear reactors: an overview. Compos Sci Technol2004; 64(2): 155–170.
5.
ChenXChenLZhangC, et al.Three-dimensional needle-punching for composites–a review. Compos Appl Sci Manuf2016; 85: 12–30.
6.
ShvydyukKONunes-PereiraJRodriguesFF, et al.Review of ceramic composites in aeronautics and aerospace: a multifunctional approach for TPS, TBC and DBD applications. Ceramics2023; 6(1): 195–230.
7.
WangPLiuFWangH, et al.A review of third generation SiC fibers and SiCf/SiC composites. J Mater Sci Technol2019; 35(12): 2743–2750.
8.
LiangC. Application of continuous fiber reinforced metal matrix composite componenton turbofan aeroengine. Aero Manuf Technol2008; 51(4): 32–37.
9.
BirmanVByrdLW. Matrix cracking in transverse layers of cross-ply beams subjected to bending and its effect on vibration frequencies. Compos B Eng2001; 32(1): 47–55.
10.
VaidyaASUddinNVaidyaU. Vibration response of 3-D space accessible sandwich composite. J Reinforc Plast Compos2009; 28(13): 1587–1599.
11.
GaoXHanDChenJ, et al.Numerical and experimental study on the nonlinear dynamic response of a ceramic matrix composites beam. Ceram Int2018; 44(6): 6223–6231.
12.
HuXSunZYangF, et al. Fatigue hysteresis behaviour of 2.5 D woven C/SiC composites: theory and experiments. Appl Compos Mater. 2017; 24: 1387–1403.
13.
FilipuzziLNaslainR. Oxidation mechanisms and kinetics of 1D-Si C/C/Si C composite materials, 2: modeling. J Am Ceram Soc1994; 77(2): 476–480.
14.
HalbigMCMcGuffin-CawleyJDEckelAJ, et al.Oxidation kinetics and stress effects for the oxidation of continuous carbon fibers within a microcracked C/SiC ceramic matrix composite. J Am Ceram Soc2008; 91(2): 519–526.
15.
ChengLXuYZhangL, et al.Oxidation behaviour of three dimensional C/SiC composites in air and combustion gas environments. Carbon2000; 38(15): 2103–2108.
16.
ChengLXuYZhangL, et al.Effect of glass sealing on the oxidation behaviour of three dimensional C/SiC composites in air. Carbon2001; 39(8): 1127–1133.
17.
ChengLXuYZhangL, et al.Effect of carbon interlayer on oxidation behaviour of C/SiC composites with a coating from room temperature to 1500°C. Carbon2001; 300(1–2): 219–225.
18.
YinXChengLZhangL, et al.Oxidation behaviour of 3D C/SiC composites in two oxidizing environments. Compos Sci Technol2001; 61(7): 977–980.
19.
TangBSunZGaoX, et al.Analytical method for estimating the damping in unidirectional ceramic matrix composites. J Aero Power, 2010; 25(10): 2217–2222.
20.
WangWChengLZhangL. Study on damping capacity of two dimensional carbon fiber reinforced silicon carbide (2D C/SiC) composites. J Solid Rocket Technol2006; 29(6): 455–459.
21.
Miller-OanaMCorralEL. High-temperature isothermal oxidation of ultra-high temperature ceramics using thermal gravimetric analysis. J Am Ceram Soc2016; 99(2): 619–626.
22.
LevineSROpilaEJHalbigMC, et al.Evaluation of ultra-high temperature ceramics for aero propulsion use. J Eur Ceram Soc2002; 22(14-15): 2757–2767.
23.
CroissantJGFatieievYKhashabNM. Degradability and clearance of silicon, organosilica, silsesquioxane, silica mixed oxide, and mesoporous silica nanoparticles. Adv Mater2017; 29(9): 1604634.
24.
LamMMigonneyVFalentin-DaudreC. Review of silicone surface modification techniques and coatings for antibacterial/antimicrobial applications to improve breast implant surfaces. Acta Biomater2021; 121: 68–88.
25.
JacobsonNSFoxDSOpilaEJ. High temperature oxidation of ceramic matrix composites. Pure Appl Chem1998; 70(2): 493–500.
26.
OpilaEJSerraJL. Oxidation of carbon fiber‐reinforced silicon carbide matrix compo-sites at reduced oxygen partial pressures. J Am Ceram Soc2011; 94(7): 2185–2192.
27.
XuYGaoXZhangH, et al.Experimental study on effects of damage on vibration characteristics of a plain woven ceramic matrix composites beam. J Propuls Technol2021; 42(9): 2138–2144.
