Multiscale ablation mechanism and performance of 2.5D Si3N4 f/SiBN-CMCs under continuous-wave laser irradiation

Zhuang, Yangpeng; Bi, R.; Zhu, Jiemin; Luo, Chuyang; Liang, Yanyuan; Zhang, Liying

doi:10.1016/j.jeurceramsoc.2023.04.023

Cited by 3 publications

(1 citation statement)

References 41 publications

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“…However, one problem for short carbon fiber‐reinforced CMCs is that it is difficult to obtain relatively dense composites because the low sintering activity of ceramic matrix combined with the introduction of short fibers makes it more difficult to sinter. Therefore, the lower ablation resistance of short carbon fiber‐reinforced CMCs, compared to continuous carbon fiber‐reinforced CMCs, may be related to the porosity of CMCs, 13 and it is necessary to improve sintering activity and reduce the porosity of short carbon fiber‐reinforced CMCs.…”

Section: Introductionmentioning

confidence: 99%

Ablation behavior of C_sf/SiC‐BN composites with polyborosilazane as sintering aids: High‐temperature damage mechanism

Li,

Wang,

Dou

et al. 2024

J Am Ceram Soc.

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Microstructural evolution and high‐temperature ablative damage mechanism of Csf/SiC‐BN composites with and without polyborosilazane (PBSZ) as sintering aids that can convert to polymer‐derived SiBCN ceramics (PDCs‐SiBCN) by cross‐linking and pyrolysis during sintering were studied. The density of Csf/SiC‐BN composites increases from 2.17 to 2.25 g/cm3 with 10 wt.% sintering aids because PBSZ promotes rearrangement and redistribution of raw materials by pyrolysis during the sintering process. With the increase of carbon fiber content, ablation performance (mass ablation rate: 15.25 mg/s; linear ablation rate: 0.100 mm/s) negligibly decreases, compared to counterparts with lower fiber content (mass ablation rate: 16.53 mg/s; linear ablation rate: 0.072 mm/s) because the presence of PDCs‐SiBCN partially compensates for the detrimental effect of carbon fibers on ablation performance. Csf/SiC‐BN composites with and without PBSZ show similar phase composition mainly containing quartz, amorphous SiO2, and matrix crystallization products and morphology after ablation because of similar phase composition before ablation. The ablation mechanism is oxidative corrosion and mechanical scouring and stripping.

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Section: Introductionmentioning

confidence: 99%

Ablation behavior of C_sf/SiC‐BN composites with polyborosilazane as sintering aids: High‐temperature damage mechanism

Li,

Wang,

Dou

et al. 2024

J Am Ceram Soc.

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show abstract

Processing characteristics and ablation mechanism of CMC-SiCf/SiC by rotational thirteen-beam coupling nanosecond laser

Rao,

Chen,

Chen

et al. 2024

Ceramics International

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The antioxidative protection mechanism of the ultra-high temperature radome composite material BNf/SiBN

Luan,

Wang,

Wang

et al. 2024

Ceramics International

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Multiscale ablation mechanism and performance of 2.5D Si3N4 f/SiBN-CMCs under continuous-wave laser irradiation

Cited by 3 publications

References 41 publications

Ablation behavior of C_sf/SiC‐BN composites with polyborosilazane as sintering aids: High‐temperature damage mechanism

Ablation behavior of C_sf/SiC‐BN composites with polyborosilazane as sintering aids: High‐temperature damage mechanism

Processing characteristics and ablation mechanism of CMC-SiCf/SiC by rotational thirteen-beam coupling nanosecond laser

The antioxidative protection mechanism of the ultra-high temperature radome composite material BNf/SiBN

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Multiscale ablation mechanism and performance of 2.5D Si3N4 f/SiBN-CMCs under continuous-wave laser irradiation

Cited by 3 publications

References 41 publications

Ablation behavior of Csf/SiC‐BN composites with polyborosilazane as sintering aids: High‐temperature damage mechanism

Ablation behavior of Csf/SiC‐BN composites with polyborosilazane as sintering aids: High‐temperature damage mechanism

Processing characteristics and ablation mechanism of CMC-SiCf/SiC by rotational thirteen-beam coupling nanosecond laser

The antioxidative protection mechanism of the ultra-high temperature radome composite material BNf/SiBN

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Product

Resources

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Ablation behavior of C_sf/SiC‐BN composites with polyborosilazane as sintering aids: High‐temperature damage mechanism

Ablation behavior of C_sf/SiC‐BN composites with polyborosilazane as sintering aids: High‐temperature damage mechanism