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Ablation Performance of a Novel Super-hybrid Composite

Journal of Materials Science & Technology 2005年第2期21卷 269-273页

作者： JunQIU XiaomingCAO ChongTIAN JinsongZHANG InstituteofMetalResearch ChineseAcademyofScienceShenyang110016China//SchoolofMaterialScienceandEngineeringTongjiUniversityShanghai200092China InstituteofMetalResearch ChineseAcademyofScienceShenyang110016China

A novel super-hybrid composite (NSHC) was boron-modified phenolic resin (BPR) with three-dimensional reticulated SiC ceramic (3DRC) and high silica fibers. Ablation performance of the NSHC was studied. The results show that the linear ablation rate of NSHC was lower than that of pure BPR and the high silica/BPR composite. Its linear ablation rate is 1/17 of the high silica/BPR. Mass ablation rate of the NSHC is very close to that of the pure BPR and the high silica/BPR composite. Scanning electron microscope (SEM) analysis indicates that 3DRC has scarcely changed its shape at the ablation temperature. Its special reticulated structure can restrict the materials deformation and prevent high velocity heat flow from eroding the surface of the materials largely and thus increase ablation resistance of the NSHC.

关键词： Ablation performance High silica fiber modified phenolic resin Three-dimensional reticulated SiC ceramic Super-hybrid composite materials

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Ablation Property of Ceramics/Carbon Fibers/resin Novel Super-hybrid Composite

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Journal of Materials Science & Technology 2005年第1期21卷 92-94页

作者： JunQIU XiaomingCAO ChongTIAN JinsongZHANG InstituteofMetalResearch ChineseAcademyofSciencesShenyang110016China InstituteofMetalResearch ChineseAcademyofSciencesShenyang110016China//SchoolofMaterialsScienceandEngineeringShenyangInstituteofChemicalTechnologyShenyang110021China

A novel super-hybrid composite (NSHC) is prepared with three-dimension reticulated SiC ceramic (3DRC), high performance carbon fibers and modified phenolic resin (BPR) in this paper. Ablation performance of super-hybrid composite is studied. The results show that the NSHC has less linear ablation rate compared with pure BPR and CF/BPR composite, for example, its linear ablation rate is 50% of CF/BPR at the same fiber content. Mass ablation rate of the NSHC is slightly lower than that of pure BPR and CF/BPR composite because of their difference in the density. Scanning electron microscopic analysis indicates that 3DRC can increase anti-erosion capacity of materials because its special reticulated structure can control the deformation of materials and strengthen the stability of integral structure.

关键词： Ablation performance Carbon fiber modified phenolic resin Three-dimensional reticulated SiC ceramic, Super-hybrid composite materials

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