Preparation and Assessment of C/C-ZrB2-SiC Ultra-High Temperature Ceramics

Jie Fan; Chang Ling Zhou; Chong Hai Wang; Yan Yan Wang; Rui Xiang Liu

doi:10.4028/www.scientific.net/KEM.512-515.719

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Ablation Property of ZrB₂-SiC Composite Sharp Leading Edges with Varying Radiuses of Curvature under Oxy-Acetylene Torch
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Fabrication of ZrC-SiC Powders by Means of Liquid Precursor Conversion Method Using ZrC Precursor and Polycarbosilane
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Preparation and Assessment of C/C-ZrB₂-SiC Ultra-High Temperature Ceramics
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Effect of Adding Phase on the Properties of ZrB₂ Based Ultra-High-Temperature Ceramics
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Preparation and Properties of ZrB₂-Cu Composites by Spark Plasma Sintering
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 512-515Preparation and Assessment of C/C-ZrB2-SiC...

Preparation and Assessment of C/C-ZrB₂-SiC Ultra-High Temperature Ceramics

Abstract:

With the background of thermal protection applications of anti-oxidation carbon fiber reinforced composites, carbon fiber reinforced ultra-high temperatureceramics with homogeneous disperse complex matrix of C-ZrB2-SiC (C/C-ZrB2-SiC) was prepared. Carbon fiber performs were deposited with pyrolytic carbon by chemical vapor infiltration method. Subsequently, the composite precursors were prepared by completely mutually dissolving of ZrB2 polymeric precursor and polycarbosilane dimethylbenzene solution. Then the nano-dispersed ZrB2-SiC composite ceramic was introduced into the C/C preforms by polymer impregnant and pyrolysis process. The C/C-ZrB2-SiC composite shows excellent ablation behavior with the ablating rate of 8*10-4mm/s. The microstructural and compositional characterizations of the C/C-ZrB2-SiC composites indicates that ZrB2 nanoparticle is distributed homogeneously in the continuous SiC phase, which is beneficial to enhance ultra-high temperature ablation resistance of the composites.

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Periodical:

Key Engineering Materials (Volumes 512-515)

Pages:

719-722

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.512-515.719

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Online since:

June 2012

Authors:

Jie Fan, Chang Ling Zhou, Chong Hai Wang, Yan Yan Wang, Rui Xiang Liu

Keywords:

Ablation Behavior, C/C-ZrB₂-SiC Composites, Mechanical Property, Thermal Property

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References

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