Preparation and properties of 2D C/SiC-ZrB2-TaC composites

Lulu Li; Yiguang Wang; Laifei Cheng; Litong Zhang

doi:10.1016/j.ceramint.2010.10.033

Preparation and properties of 2D C/SiC-ZrB₂-TaC composites

Lulu Li, Yiguang Wang^*, Laifei Cheng, Litong Zhang

^*Corresponding author for this work

Northwestern Polytechnical University Xian

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

78 Citations (Scopus)

Abstract

Two-dimensional (2D) C/SiC-ZrB₂-TaC composites were fabricated by chemical vapor infiltration (CVI) combined with slurry paste (SP) method. 2D laminate was prepared by stacking carbon cloth that was pasted with a mixture of polycarbosilane-ZrB₂-TaC slurry. A small amount of carbon fiber tows were introduced into the preform in the vertical direction. After heat-treated at 1800 °C, the 2D laminate was densified with SiC by CVI to obtain 2D C/SiC-ZrB₂-TaC composites. Properties including flexural strength, interlaminar shear strength, and thermal expansion of the composites were investigated. The ablation test was carried out under an oxyacetylene torch flame. The morphologies of the ablated specimens were analyzed. The results indicate that the adding vertical fiber tows and heat-treatment at 1800 °C can greatly improve the mechanical properties of the composites. The co-addition of TaC and ZrB₂ powders into C/SiC composite effectively enhance its ablation resistance.

Original language	English
Pages (from-to)	891-896
Number of pages	6
Journal	Ceramics International
Volume	37
Issue number	3
DOIs	https://doi.org/10.1016/j.ceramint.2010.10.033
Publication status	Published - Apr 2011
Externally published	Yes

Keywords

Ablation properties
C. Mechanical properties
Ceramic matrix composites
Chemical vapor deposition

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10.1016/j.ceramint.2010.10.033

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Li, L., Wang, Y., Cheng, L., & Zhang, L. (2011). Preparation and properties of 2D C/SiC-ZrB₂-TaC composites. Ceramics International, 37(3), 891-896. https://doi.org/10.1016/j.ceramint.2010.10.033

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title = "Preparation and properties of 2D C/SiC-ZrB2-TaC composites",

abstract = "Two-dimensional (2D) C/SiC-ZrB2-TaC composites were fabricated by chemical vapor infiltration (CVI) combined with slurry paste (SP) method. 2D laminate was prepared by stacking carbon cloth that was pasted with a mixture of polycarbosilane-ZrB2-TaC slurry. A small amount of carbon fiber tows were introduced into the preform in the vertical direction. After heat-treated at 1800 °C, the 2D laminate was densified with SiC by CVI to obtain 2D C/SiC-ZrB2-TaC composites. Properties including flexural strength, interlaminar shear strength, and thermal expansion of the composites were investigated. The ablation test was carried out under an oxyacetylene torch flame. The morphologies of the ablated specimens were analyzed. The results indicate that the adding vertical fiber tows and heat-treatment at 1800 °C can greatly improve the mechanical properties of the composites. The co-addition of TaC and ZrB2 powders into C/SiC composite effectively enhance its ablation resistance.",

keywords = "Ablation properties, C. Mechanical properties, Ceramic matrix composites, Chemical vapor deposition",

author = "Lulu Li and Yiguang Wang and Laifei Cheng and Litong Zhang",

year = "2011",

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doi = "10.1016/j.ceramint.2010.10.033",

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AU - Li, Lulu

AU - Wang, Yiguang

AU - Cheng, Laifei

AU - Zhang, Litong

PY - 2011/4

Y1 - 2011/4

N2 - Two-dimensional (2D) C/SiC-ZrB2-TaC composites were fabricated by chemical vapor infiltration (CVI) combined with slurry paste (SP) method. 2D laminate was prepared by stacking carbon cloth that was pasted with a mixture of polycarbosilane-ZrB2-TaC slurry. A small amount of carbon fiber tows were introduced into the preform in the vertical direction. After heat-treated at 1800 °C, the 2D laminate was densified with SiC by CVI to obtain 2D C/SiC-ZrB2-TaC composites. Properties including flexural strength, interlaminar shear strength, and thermal expansion of the composites were investigated. The ablation test was carried out under an oxyacetylene torch flame. The morphologies of the ablated specimens were analyzed. The results indicate that the adding vertical fiber tows and heat-treatment at 1800 °C can greatly improve the mechanical properties of the composites. The co-addition of TaC and ZrB2 powders into C/SiC composite effectively enhance its ablation resistance.

AB - Two-dimensional (2D) C/SiC-ZrB2-TaC composites were fabricated by chemical vapor infiltration (CVI) combined with slurry paste (SP) method. 2D laminate was prepared by stacking carbon cloth that was pasted with a mixture of polycarbosilane-ZrB2-TaC slurry. A small amount of carbon fiber tows were introduced into the preform in the vertical direction. After heat-treated at 1800 °C, the 2D laminate was densified with SiC by CVI to obtain 2D C/SiC-ZrB2-TaC composites. Properties including flexural strength, interlaminar shear strength, and thermal expansion of the composites were investigated. The ablation test was carried out under an oxyacetylene torch flame. The morphologies of the ablated specimens were analyzed. The results indicate that the adding vertical fiber tows and heat-treatment at 1800 °C can greatly improve the mechanical properties of the composites. The co-addition of TaC and ZrB2 powders into C/SiC composite effectively enhance its ablation resistance.

KW - Ablation properties

KW - C. Mechanical properties

KW - Ceramic matrix composites

KW - Chemical vapor deposition

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DO - 10.1016/j.ceramint.2010.10.033

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SN - 0272-8842

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EP - 896

JO - Ceramics International

JF - Ceramics International

IS - 3

ER -

Preparation and properties of 2D C/SiC-ZrB₂-TaC composites

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Keywords

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