Effects of SiC addition on the ablation properties of C/C composites in different heat fluxes under oxyacetylene torch

Lei Liu; Hejun Li; Xiaohong Shi; Wei Feng; Yongjie Wang; Dongjia Yao

doi:10.1016/j.vacuum.2012.09.025

Effects of SiC addition on the ablation properties of C/C composites in different heat fluxes under oxyacetylene torch

Lei Liu, Hejun Li, Xiaohong Shi, Wei Feng, Yongjie Wang, Dongjia Yao

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

To find out the effects of SiC addition on the ablation properties of carbon/carbon (C/C) composites, C/C composites with and without SiC addition were ablated by oxyacetylene torch in different heat fluxes. Results indicated that the SiC addition improved the ablation property of C/C composites in the case of heat flux below 3.64 ± 10% MW/m² whereas it displayed an opposite effect when heat flux was above that value. Ablation morphologies suggested that the relative erosion speed of SiC addition to pyrocarbon matrix took a change when heat flux rose to higher than 3.64 ± 10% MW/m ², which determined the opposite effects of SiC addition on the ablation properties of C/C composites.

Original language	English
Pages (from-to)	97-99
Number of pages	3
Journal	Vacuum
Volume	90
Issue number	1
DOIs	https://doi.org/10.1016/j.vacuum.2012.09.025
State	Published - Apr 2013

Keywords

Ablation
Carbon materials
Ceramic composites
Corrosion
Oxidation

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10.1016/j.vacuum.2012.09.025

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title = "Effects of SiC addition on the ablation properties of C/C composites in different heat fluxes under oxyacetylene torch",

abstract = "To find out the effects of SiC addition on the ablation properties of carbon/carbon (C/C) composites, C/C composites with and without SiC addition were ablated by oxyacetylene torch in different heat fluxes. Results indicated that the SiC addition improved the ablation property of C/C composites in the case of heat flux below 3.64 ± 10% MW/m2 whereas it displayed an opposite effect when heat flux was above that value. Ablation morphologies suggested that the relative erosion speed of SiC addition to pyrocarbon matrix took a change when heat flux rose to higher than 3.64 ± 10% MW/m 2, which determined the opposite effects of SiC addition on the ablation properties of C/C composites.",

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author = "Lei Liu and Hejun Li and Xiaohong Shi and Wei Feng and Yongjie Wang and Dongjia Yao",

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T1 - Effects of SiC addition on the ablation properties of C/C composites in different heat fluxes under oxyacetylene torch

AU - Liu, Lei

AU - Li, Hejun

AU - Shi, Xiaohong

AU - Feng, Wei

AU - Wang, Yongjie

AU - Yao, Dongjia

PY - 2013/4

Y1 - 2013/4

N2 - To find out the effects of SiC addition on the ablation properties of carbon/carbon (C/C) composites, C/C composites with and without SiC addition were ablated by oxyacetylene torch in different heat fluxes. Results indicated that the SiC addition improved the ablation property of C/C composites in the case of heat flux below 3.64 ± 10% MW/m2 whereas it displayed an opposite effect when heat flux was above that value. Ablation morphologies suggested that the relative erosion speed of SiC addition to pyrocarbon matrix took a change when heat flux rose to higher than 3.64 ± 10% MW/m 2, which determined the opposite effects of SiC addition on the ablation properties of C/C composites.

AB - To find out the effects of SiC addition on the ablation properties of carbon/carbon (C/C) composites, C/C composites with and without SiC addition were ablated by oxyacetylene torch in different heat fluxes. Results indicated that the SiC addition improved the ablation property of C/C composites in the case of heat flux below 3.64 ± 10% MW/m2 whereas it displayed an opposite effect when heat flux was above that value. Ablation morphologies suggested that the relative erosion speed of SiC addition to pyrocarbon matrix took a change when heat flux rose to higher than 3.64 ± 10% MW/m 2, which determined the opposite effects of SiC addition on the ablation properties of C/C composites.

KW - Ablation

KW - Carbon materials

KW - Ceramic composites

KW - Corrosion

KW - Oxidation

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Effects of SiC addition on the ablation properties of C/C composites in different heat fluxes under oxyacetylene torch

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Keywords

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