一种C / SiC-ZrB2-HfB2-Cu复合材料及其制备方法
C/SiC-ZrB2-HfB2-Cu composite materials were prepared by vacuum centrifugal impregnation and ceramic metallization processes, which solved the service problems of existing ceramic matrix composite materials in the extreme environment of scramjet engines. This resulted in a low-cost, short-cycle, and high-performance thermal protection material with excellent ablation resistance and thermal conductivity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INST OF METAL RESEARCH - CHINESE ACAD OF SCI
- Filing Date
- 2026-04-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing ceramic matrix composite materials are difficult to meet the service requirements of over 2500°C in the extreme environment of scramjet engines. They are costly and have long preparation cycles, making it difficult to achieve low-cost, short-cycle, and high-performance thermal protection materials.
A C/SiC-ZrB2-HfB2-Cu composite material was prepared by vacuum centrifugal impregnation and ceramic metallization process. By forming a three-dimensional continuous network structure of Cu conductive agent and uniform dispersion of ZrB2-HfB2 particles in the matrix, high thermal conductivity and ablation resistance were achieved.
The material exhibits excellent ablation resistance and low surface temperature characteristics at temperatures above 2500℃, significantly reducing surface temperature, improving mechanical properties and reducing linear ablation rate, while also lowering cost and shortening preparation cycle.
Smart Images
Figure CN122102699B_ABST