Metastable Si-B-C-N ceramics and their matrix composites developed by inorganic route based on mechanical alloying: Fabrication, microstructures, properties and their relevant basic scientific issues

Jia, Dechang; Liang, Bin; Yang, Zhihua; Zhou, Yu

doi:10.1016/j.pmatsci.2018.05.006

Cited by 101 publications

(74 citation statements)

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“…In the last decade, we have successfully prepared bulk SiBCN ceramics through MA and subsequently HP/SPS sintering. With preparing bulk SiBCN ceramics, the measurements of properties such as flexural strength, fracture toughness, and thermal shock resistance became feasible [5][6][7][8][9]. Among J Adv Ceram 2018, 7(3): 276-288 277 Open Access The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.…”

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Enhanced thermal shock and oxidation resistance of Si2BC3N ceramics through MWCNTs incorporation

et al. 2018

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Multi-walled carbon nanotubes (MWCNTs) reinforced Si 2 BC 3 N ceramics were prepared through mechanical alloying (MA) and following spark plasma sintering (SPS). The thermal shock resistance of Si 2 BC 3 N ceramics was evaluated comparatively through ice water quenching test and theoretical prediction. Furthermore, the oxidation resistance of MWCNTs incorporated Si 2 BC 3 N ceramics was evaluated under high temperature. The results show that the calculated parameters such as the critical thermal shock temperature (R) and the thermal stresses resistance (R st ), as well as the toughness (R) are improved with addition of 1 vol% MWCNTs. In addition, the crack propagation resistance of 1 vol% MWCNTs incorporated Si 2 BC 3 N ceramics is obviously improved through generating more tortuous crack propagation paths attributing to the "crack bridging", "pull-out", and "crack deflection" mechanisms of MWCNTs. Therefore, the residual strengths of 1 vol% MWCNTs containing specimens remained the highest after the thermal shock tests. Besides, the present work also reveals that the oxidation resistance is more sensitive to relative density than MWCNTs addition. a next generation of sharp re-entry space vehicles [1]. Up to date, the intensively investigated HTCs are mainly composed of binary (e.g., SiC, Si 3 N 4 , and ZrB 2 ), ternary (SiCN), and quaternary (including SiBCN and SiCNTi) composites [2][3][4]. In the last decade, we have successfully prepared bulk SiBCN ceramics through MA and subsequently HP/SPS sintering. With preparing bulk SiBCN ceramics, the measurements of properties such as flexural strength, fracture toughness, and thermal shock resistance became feasible [5][6][7][8][9]. Among J Adv Ceram 2018, 7(3): 276-288 277 Open Access The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons. org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Enhanced thermal shock and oxidation resistance of Si2BC3N ceramics through MWCNTs incorporation

et al. 2018

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“…Based on these excellent properties, SiBCN ceramics are considered as a key candidate for applications under extreme conditions in the aerospace industry, such as the heat shield, leading edges of advanced aircraft [5][6][7]. However, low toughness and poor thermal shock resistance restrict the wide application of SiBCN ceramics [8,9]. C f /SiBCN composites with carbon ber as reinforcement fundamentally overcome the brittleness and poor thermal shock resistance, which are supposed to have a wider application in the above-mentioned areas [10][11][12].…”

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Microstructure and mechanical properties of 3D Cf/SiBCN composites fabricated by polymer infiltration and pyrolysis

Chen

Ding

et al. 2020

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In this work, 3D C f /SiBCN composites were fabricated by polymer infiltration and pyrolysis (PIP) with poly(methylvinyl)borosilazane as SiBCN precursor. The 3D microstructure evolution process of the composites was investigated by an advanced x-ray computed tomography (XCT). The effect of dicumyl peroxide (DCP) initiator addition on the crosslinking process, microstructure evolution and mechanical properties of the composites were uncovered. With the addition of DCP initiator, the liquid precursor can cross-link to solid-state at 120 °C. Moreover, DCP addition decreases the release of small molecule gas during pyrolysis, leading to an improved ceramic yield 4.67 times higher than that without DCP addition. After 7 PIP cycles, density and open porosity of the final Cf/SiBCN composite with DCP addition are 1.73 g·cm -3 and ~10%, respectively, which are 143.0% higher and 30.3% lower compared with the composites without DCP addition. As a result, the flexural strength and elastic modulus of Cf/SiBCN composites with DCP addition (371 MPa and 31 GPa) are 1.74 and 1.60 times higher than that without DCP addition (213 MPa and 19.4 GPa).

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“…Continuous carbon fiber reinforced SiBCN (C f /SiBCN) composites are endowed with excellent high‐temperature mechanical properties, oxidation resistance, and creep resistance, meanwhile overcome the intrinsic brittleness and poor thermal shock resistance of bulk SiBCN ceramics . As a result, these materials are considered as one of the most promising candidates for applications in high‐performance thermal protection system (TPS) of hypersonic vehicles, such as leading edges and sharp noses . Due to the complexity in composition of SiBCN, C f /SiBCN composites have mainly been fabricated by precursor infiltration and pyrolysis (PIP) process to the best knowledge of the authors .…”

Section: Introductionmentioning

confidence: 99%

“…As a result, these materials are considered as one of the most promising candidates for applications in high‐performance thermal protection system (TPS) of hypersonic vehicles, such as leading edges and sharp noses . Due to the complexity in composition of SiBCN, C f /SiBCN composites have mainly been fabricated by precursor infiltration and pyrolysis (PIP) process to the best knowledge of the authors . Recently, an improved PIP approach was developed for highly efficient densification of C f /SiBCN composites in our work, in which C f /SiBCN composites with an open porosity of ~10% and uniform microstructure were obtained only after seven cycles of PIP .…”

Section: Introductionmentioning

confidence: 99%

“…5 Due to the complexity in composition of SiBCN, C f /SiBCN composites have mainly been fabricated by precursor infiltration and pyrolysis (PIP) process to the best knowledge of the authors. 5,6 Recently, an improved PIP approach was developed for highly efficient densification of C f /SiBCN composites in our work, in which C f /SiBCN composites with an open porosity of ~10% and uniform microstructure were obtained only after seven cycles of PIP. 7 For applications in the above-mentioned harsh service environment, high-temperature mechanical properties, oxidation resistance, and ablation resistance of the C f /SiBCN composites need comprehensive understanding.…”

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Ablation behavior and mechanism of C_f/SiBCN composites in plasma ablation flame

Ding

Jiang

et al. 2019

J Am Ceram Soc

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In this work, Cf/SiBCN composites are fabricated by an improved precursor infiltration and pyrolysis (PIP) approach. Ablation behavior of the Cf/SiBCN composites is investigated in plasma ablation flame at a heat flux of 4.02 MW m−2, which provides a quasi‐real hypersonic service environment at a temperature up to 2200°C. After ablation, the ablated surface is covered with oxidation products in the form of oxide layer, fibrous residues, or bubbles, which effectively isolates the sample surface from the plasma flame and inhibits the scouring of high‐speed flame to the composites. As a result, the Cf/SiBCN composites present an excellent ablation‐resistant property, with linear and mass recession rates as low as 0.0030 mm s−1 and 0.0539 mg mm−2 s−1, respectively. It is also revealed that the material at ablation center undergoes crystallization and oxidation processes during ablation, while the ablation behavior at transition area and ablation fringe only contains oxidation process due to the local temperature difference. Si3N4 and SiC grains are precipitated from amorphous SiBCN matrix during the crystallization process, and the oxidation process mainly involves the oxidation of carbon fiber and SiBCN matrix, etc.

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Metastable Si-B-C-N ceramics and their matrix composites developed by inorganic route based on mechanical alloying: Fabrication, microstructures, properties and their relevant basic scientific issues

Cited by 101 publications

References 286 publications

Enhanced thermal shock and oxidation resistance of Si2BC3N ceramics through MWCNTs incorporation

Enhanced thermal shock and oxidation resistance of Si2BC3N ceramics through MWCNTs incorporation

Microstructure and mechanical properties of 3D Cf/SiBCN composites fabricated by polymer infiltration and pyrolysis

Ablation behavior and mechanism of C_f/SiBCN composites in plasma ablation flame

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Metastable Si-B-C-N ceramics and their matrix composites developed by inorganic route based on mechanical alloying: Fabrication, microstructures, properties and their relevant basic scientific issues

Cited by 101 publications

References 286 publications

Enhanced thermal shock and oxidation resistance of Si2BC3N ceramics through MWCNTs incorporation

Enhanced thermal shock and oxidation resistance of Si2BC3N ceramics through MWCNTs incorporation

Microstructure and mechanical properties of 3D Cf/SiBCN composites fabricated by polymer infiltration and pyrolysis

Ablation behavior and mechanism of Cf/SiBCN composites in plasma ablation flame

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Ablation behavior and mechanism of C_f/SiBCN composites in plasma ablation flame