Oxidation behavior of 3D SiCf/SiBCN composites at 800–1200 °C

Xu, Haiming; Peng, Yuqing; Wei, Zihan; Wang, Mengqian; Li, Aijun; Shuai, Sansan; Luan, Xingang

doi:10.1016/j.jeurceramsoc.2020.08.057

Cited by 18 publications

(7 citation statements)

References 37 publications

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“…The SiBCN was also employed alone as matrix in some studies. The oxidation resistance of SiC/SiBCN via the PIP process was studied at different temperatures (800, 1000, and 1200 ℃) for 50 h in air [139]. The fracture mode changed from non-brittle to brittle after oxidation.…”

Section: Cmc-sic Modified With Sibcnmentioning

confidence: 99%

Long-term ceramic matrix composite for aeroengine

Song

Cheng

et al. 2022

J Adv Ceram

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Three strategies were proposed to prolong the service life of continuous fiber-reinforced silicon carbide ceramic matrix composite (CMC-SiC), which served as thermal-structure components of aeroengine at thermo-mechanical-oxygenic coupling environment. As for some thermal-structure components with low working stress, improving the degree of densification was crucial to prolong the service life, and the related process approaches were recited. If the thermal-structure components worked under moderate stress, the matrix cracking stress (σmc) should be improved as far as possible. The fiber preform architecture, interface shear strength, residual thermal stress, and matrix strengthening were associated with σmc in this review. Introducing self-healing components was quite significant with the appearance of matrix microcracks when CMC-SiC worked at more severe environment for hundreds of hours. The damage can be sealed by glass phase originating from the reaction between self-healing components and oxygen. The effective self-healing temperature range of different self-healing components was first summarized and distinguished. The structure, composition, and preparation process of CMC-SiC should be systematically designed and optimized to achieve long duration target.

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Section: Cmc-sic Modified With Sibcnmentioning

confidence: 99%

Long-term ceramic matrix composite for aeroengine

Song

Cheng

et al. 2022

J Adv Ceram

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“…In recent years, amorphous ceramics such as SiCN, SiBN, and SiBNC prepared from organosilicon polymer precursors have attracted extensive attention due to their noteworthier high‐temperature stability and good oxidation resistance. Reports show that SiBNC ceramics remain distinctly stable at temperatures as high as 2000°C, which presents prized application prospects 1–12 . However, the properties of polymer‐derived SiBNC ceramics deteriorate after exposure to 1500°C for more than 24 h. The originally amorphous oxide layer crystallizes, and there is a generation of bubbles (presumed to result from the volatilization of B 2 O 3 formed during oxidation).…”

Section: Introductionmentioning

confidence: 99%

“…Reports show that SiBNC ceramics remain distinctly stable at temperatures as high as 2000 • C, which presents prized application prospects. [1][2][3][4][5][6][7][8][9][10][11][12] However, the properties of polymer-derived SiBNC ceramics deteriorate after exposure to 1500 • C for more than 24 h. The originally amorphous oxide layer crystallizes, and there is a generation of bubbles (presumed to result from the volatilization of B 2 O 3 formed during oxidation). A similar phenomenon was observed during the high-temperature oxidation of bulk SiC with boron as a sintering aid.…”

Section: Introductionmentioning

confidence: 99%

Effects of hafnium sources and hafnium content on the structures and properties of SiBNC–Hf ceramic precursors

et al. 2023

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The synthesis of SiBNC–M (M is metal element) multinary ceramic precursors has mainly been through chemical modification of the SiBNC ceramic precursors with the introduction of the metal element/compound. This misses the simplicity, efficiency, and combined benefits of single reactor synthesis routes. We herein adopt a one‐pot method to synthesize SiBNC–Hf ceramic precursors (PBSHZ) from different Hf sources, and with varying Hf content. The starting materials include hafnium tetrachloride, hafnium dichloride, trichlorosilane, hexamethyldisilazane, and boron trichloride. Fourier transform infrared spectroscopy (FT‐IR), nuclear magnetic resonance (NMR), X‐ray photoelectron spectroscopy (XPS), and thermogravimetric analysis are employed to characterize the structures and properties of the PBSHZ. The results reveal the successful incorporation of Hf into the precursors. Compared to the hafnium tetrachloride source, the precursor synthesized from hafnium dichloride yields more ceramics and shows better solubility, due to fewer Hf–Cl bonds available for reaction. Meanwhile, there is a positive correlation between the rise in the Hf content of PBSHZ and the ceramic yield. However, the solubility and processability of the precursors decline, due to the multiplication of the cross‐linking degree in the molecular structure. Further FT‐IR, NMR, XPS, and thermogravimetry–mass spectrometry (TG–MS) analysis indicate a full polymer‐to‐ceramic transformation at 1000°C pyrolysis temperature. At this point, the SiBNC–Hf ceramics mainly consist of an Si–B–N skeleton, HfN, and free carbon.

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“…[9][10][11][12][13] Continuous carbon fiber reinforced SiBCN composites (C/SiBCN) and continuous silicon carbide fiber reinforced SiBCN composites (SiC/SiBCN) have been studied widely. [14][15][16][17][18][19][20][21] These researches have shown that using continuous silicon carbide (SiC) fibers with better oxidation resistance as reinforcements is beneficial for the long-term oxidation resistance of SiBCN-based composites. And it is further proved that selecting ceramic fibers with high performance is an effective method to improve the properties of SiBCN-based composites.…”

Section: Introductionmentioning

confidence: 99%

“…Continuous carbon fiber reinforced SiBCN composites (C/SiBCN) and continuous silicon carbide fiber reinforced SiBCN composites (SiC/SiBCN) have been studied widely 14–21 . These researches have shown that using continuous silicon carbide (SiC) fibers with better oxidation resistance as reinforcements is beneficial for the long‐term oxidation resistance of SiBCN‐based composites.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and properties of SiBCN/SiBCN mini‐composites prepared by the precursor infiltration and the pyrolysis process

Zhao,

Ma,

Wang

et al. 2023

J Am Ceram Soc.

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SiBCN fiber reinforced SiBCN matrix mini‐composites (SiBCN/SiBCN) as a new type of the ceramic matrix composite were fabricated by precursor infiltration and pyrolysis (PIP) process. Various degumming methods for continuous SiBCN fibers resulted in different properties and surface conditions, further affecting the interfacial bonding strength (IFBS) and mechanical properties of the composites. The relationship between fiber degumming modes, fiber states, and properties of composites was discussed and the strengthening mechanisms of the SiBCN/SiBCN mini‐composites were explored. With a degumming treatment of N,N‐dimethylformamide (DMF) soaking, the flexural strength and modulus of mini‐SiBCN/SiBCN composites achieved 508 ± 68 MPa and 79 ± 12 GPa, respectively. The novel strengthening mechanism of the microcrystalline SiBCN fiber reinforced microcrystalline SiBCN matrix composites will enrich and be helpful to understand the strengthening and toughening mechanisms of ceramic matrix composites.

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Oxidation behavior of 3D SiCf/SiBCN composites at 800–1200 °C

Cited by 18 publications

References 37 publications

Long-term ceramic matrix composite for aeroengine

Long-term ceramic matrix composite for aeroengine

Effects of hafnium sources and hafnium content on the structures and properties of SiBNC–Hf ceramic precursors

Microstructure and properties of SiBCN/SiBCN mini‐composites prepared by the precursor infiltration and the pyrolysis process

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