Effect of h-BN addition on thermo-physical properties and phonon mechanisms of C/C-BN composites

Niu, Zibo; Zhang, Bengu; Li, Zhuan; Chen, Fu; Chen, Pengju; Li, Yang

doi:10.1016/j.carbon.2022.11.056

Cited by 3 publications

(1 citation statement)

References 25 publications

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“…In particular, the heat capacity of carbon materials was larger than that of SiC at the same temperature. The increase rate of the heat capacity of carbon materials with the temperature also greatly exceeded that of SiC [54]. Therefore, with the rising number of CNTs in the composites, the heat capacity of the composites increased significantly, reaching the maximum in the S6 specimen with CNTs of 4.94 wt%.…”

Section: Effect Of Cnts On Thermal Conductivity Of C F /Cnts-pyc/sic ...mentioning

confidence: 94%

Enhanced thermal conductivity and mechanical properties of 2D C _f/SiC composites modified by in-situ grown carbon nanotubes

Niu,

Zhang,

Cheng

et al. 2024

Journal of Advanced Ceramics

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In this work, the effects of carbon nanotubes (CNTs) on the microstructure evolution, thermal conductivity, and mechanical properties of C f /SiC composites during chemical vapor infiltration (CVI) densification were investigated in detail. Compared with composites without CNTs, the thermal conductivity, flexural strength, flexural modulus, fracture toughness, interfacial shear strength, and proportional limit stress of specimens with CNTs of 4.94 wt% were improved by 117%, 21.8%, 67.4%, 10.3%, 36.4%, and 71.1%, respectively. This improvement was attributed to the role of CNTs in the division of inter-layer pores, which provided abundant vapor growth sites for the ceramic matrix and promoted densification of the whole composite. In addition, the high thermal conductivity network formed by the overlap of CNTs and the rivet strengthening effect of CNTs were beneficial for synergistic improvement of thermal conductivity and mechanical properties of the composites. Therefore, this study has practical significance for the development of thermal protection composite components with enhanced thermal conductivity and mechanical characteristics.

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Section: Effect Of Cnts On Thermal Conductivity Of C F /Cnts-pyc/sic ...mentioning

confidence: 94%

Enhanced thermal conductivity and mechanical properties of 2D C _f/SiC composites modified by in-situ grown carbon nanotubes

Niu,

Zhang,

Cheng

et al. 2024

Journal of Advanced Ceramics

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Achieving excellent wetting of inactive Ag on C/C composites by a low-temperature surface modification strategy

Guo

Zhang

et al. 2023

Journal of the European Ceramic Society

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Ablation behavior of C/C-ZrC-SiC composite with gradient distribution of ZrC-SiC ceramics along the thickness

Zhong,

Guo,

Liu

et al. 2023

Materials Characterization

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Effect of h-BN addition on thermo-physical properties and phonon mechanisms of C/C-BN composites

Cited by 3 publications

References 25 publications

Enhanced thermal conductivity and mechanical properties of 2D C _f/SiC composites modified by in-situ grown carbon nanotubes

Enhanced thermal conductivity and mechanical properties of 2D C _f/SiC composites modified by in-situ grown carbon nanotubes

Achieving excellent wetting of inactive Ag on C/C composites by a low-temperature surface modification strategy

Ablation behavior of C/C-ZrC-SiC composite with gradient distribution of ZrC-SiC ceramics along the thickness

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Effect of h-BN addition on thermo-physical properties and phonon mechanisms of C/C-BN composites

Cited by 3 publications

References 25 publications

Enhanced thermal conductivity and mechanical properties of 2D C f/SiC composites modified by in-situ grown carbon nanotubes

Enhanced thermal conductivity and mechanical properties of 2D C f/SiC composites modified by in-situ grown carbon nanotubes

Achieving excellent wetting of inactive Ag on C/C composites by a low-temperature surface modification strategy

Ablation behavior of C/C-ZrC-SiC composite with gradient distribution of ZrC-SiC ceramics along the thickness

Contact Info

Product

Resources

About

Enhanced thermal conductivity and mechanical properties of 2D C _f/SiC composites modified by in-situ grown carbon nanotubes

Enhanced thermal conductivity and mechanical properties of 2D C _f/SiC composites modified by in-situ grown carbon nanotubes