Electromagnetic interference shielding performance and mechanism of Fe/Al modified SiC /SiC composites

Xiao, Qiqiao; Chen, Zhaofeng; Liao, Jiahao; Li, Yuanhao; Xue, Liping; Guan, Tianru

doi:10.1016/j.jallcom.2021.161359

Cited by 11 publications

(8 citation statements)

References 47 publications

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“…34 These characterizations display that SiC nws are successfully introduced into the Sg-S nws preform. However, the EDS result (Figure 3B2) and Equation (7)(8) prove that the SiC ceramic is unavoidably introduced into SiC f preform in the sol-gel process.…”

Section: Microstructure and Phasesmentioning

confidence: 94%

“…On the one hand, the PyC interface reacts with O element in the SiO 2 sol. On the other hand, the PyC interface participates in the reaction in Equation (7). The corrosion damages of SiC fiber are displayed in Figure 4B.…”

Section: Microstructure and Phasesmentioning

confidence: 99%

“…The all‐oxide composites are an inappropriate candidate for the thermal structural parts due to their insufficient mechanical properties (mainly strength and toughness) 3–5 . SiC f /SiC composites are considered as one of the candidates for thermal structural materials, as SiC f /SiC composites have a range of advantages, including low density, excellent oxidation resistance, and mechanical properties 6–8 . However, above 1600°C, the intensification of oxidation limits the application of SiC/SiC composites at higher temperatures 9 .…”

Section: Introductionmentioning

confidence: 99%

“…[3][4][5] SiC f /SiC composites are considered as one of the candidates for thermal structural materials, as SiC f /SiC composites have a range of advantages, including low density, excellent oxidation resistance, and mechanical properties. [6][7][8] However, above 1600 • C, the intensification of oxidation limits the application of SiC/SiC composites at higher temperatures. 9 Amounts of literature have revealed that the ultra-high temperature ceramics (UHTCs)-modified SiC has an excellent ablation resistance.…”

Section: Introductionmentioning

confidence: 99%

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Effect of slurry and sol‐gel introduce SiC_nws on ablation and bending behaviors of modified SiC_f/HfC‐SiC composites

Hou

Wei²,

Yang³

et al. 2022

Int J Applied Ceramic Tech

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The slurry and sol‐gel methods were used to introduce SiC nanowires (SiCnws) into the SiCf/HfC‐SiC composites. The microstructures, ablation, and bending behaviors of the SiCnws modified composites prepared by the two methods were compared. The bending strengths of the modified composites obtained by introducing SiCnws by the slurry and sol‐gel methods were 224 ± 19 and 154 ± 14 MPa, respectively. The results showed that SiC fibers with chemical corrosion and thermal damage during the sol‐gel process decreased the bending strength of the SiCnws‐modified SiCf/HfC‐SiC composites. Meanwhile, the pyrolytic carbon interface accompanying corrosion damage in the sol‐gel process led to the degradation of interface function, which hindered the interface debonding and fiber sliding of the composites during the bending test. After ablation, the bending strengths of the two composites were 188 ± 19 and 50 ± 7 MPa, respectively. The bending strength retention of the modified composites fabricated by the slurry method (83.9%) was higher than that (32.5%) of the composites fabricated by the sol‐gel method after ablation. As the composites fabricated by the slurry method exhibited a good ablation resistance under the oxyacetylene flame (∼2350°C).

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Section: Microstructure and Phasesmentioning

confidence: 94%

Section: Microstructure and Phasesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of slurry and sol‐gel introduce SiC_nws on ablation and bending behaviors of modified SiC_f/HfC‐SiC composites

Hou

Wei²,

Yang³

et al. 2022

Int J Applied Ceramic Tech

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show abstract

“…Although amounts of literature have studied the mechanics, electromagnetic shielding and thermal properties of SiC nws modified composites, [12][13][14][15][16][17][18][19] there are only a few reports on the preparation and performance of SiC nws /SiC nanocomposites. In this work, the SiC nws /SiC nanocomposites were in-situ prepared by a simple and efficient two-step chemical vapor infiltration (CVI) method.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional nanocomposites integrate electromagnetic shielding, thermal, mechanical, and wear resistance properties

et al. 2023

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The SiC nws /SiC nanocomposites were in situ synthesized by using nickel carbon foam as catalyst and skeleton. This technique has a series of advantages including simple operation, low cost, and high efficiency. Due to the excellent microwave absorption and thermal properties of SiC nws , SiC nws /SiC nanocomposites possess excellent electromagnetic shielding performance with a high SE T value of 38.3 dB and good thermal properties with thermal conductivity of 13.77 ± 0.098 wm −1 k −1 at room temperature. Meanwhile, the bending strength of the nanocomposites is 110.9 ± 7.7 MPa. The friction coefficient of nanocomposites is about 0.26 with a wear speed of about 67 um 3 /s. Therefore, the nanocomposites integrate many advantages including lightweight (2.0 g/cm 3 ), excellent electromagnetic shielding, good heat conduction, high strength, and wear resistance.

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Silicon carbide coated carbon nanotube porous sponge with super Elasticity, low Density, high thermal Resistivity, and synergistically enhanced electromagnetic interference shielding performances

Tang

Zhang

et al. 2023

Chemical Engineering Journal

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Electromagnetic interference shielding performance and mechanism of Fe/Al modified SiC /SiC composites

Cited by 11 publications

References 47 publications

Effect of slurry and sol‐gel introduce SiC_nws on ablation and bending behaviors of modified SiC_f/HfC‐SiC composites

Effect of slurry and sol‐gel introduce SiC_nws on ablation and bending behaviors of modified SiC_f/HfC‐SiC composites

Multifunctional nanocomposites integrate electromagnetic shielding, thermal, mechanical, and wear resistance properties

Silicon carbide coated carbon nanotube porous sponge with super Elasticity, low Density, high thermal Resistivity, and synergistically enhanced electromagnetic interference shielding performances

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Electromagnetic interference shielding performance and mechanism of Fe/Al modified SiC /SiC composites

Cited by 11 publications

References 47 publications

Effect of slurry and sol‐gel introduce SiCnws on ablation and bending behaviors of modified SiCf/HfC‐SiC composites

Effect of slurry and sol‐gel introduce SiCnws on ablation and bending behaviors of modified SiCf/HfC‐SiC composites

Multifunctional nanocomposites integrate electromagnetic shielding, thermal, mechanical, and wear resistance properties

Silicon carbide coated carbon nanotube porous sponge with super Elasticity, low Density, high thermal Resistivity, and synergistically enhanced electromagnetic interference shielding performances

Contact Info

Product

Resources

About

Effect of slurry and sol‐gel introduce SiC_nws on ablation and bending behaviors of modified SiC_f/HfC‐SiC composites

Effect of slurry and sol‐gel introduce SiC_nws on ablation and bending behaviors of modified SiC_f/HfC‐SiC composites