[1]姚棟嘉,李賀軍,張守陽,等.C/C復合材料SiC涂層強沖蝕環境的燒蝕性能研究[J].中國材料進展,2015,(7-8):101-105.[doi:10.7502/j.issn.1674-3962.2015.07.17]
YAO Dongjia,LI Hejun,ZHANG Shouyang,et al.Anti-Ablation Property of SiC Coating on C/C Composites at High Speed[J].MATERIALS CHINA,2015,(7-8):101-105.[doi:10.7502/j.issn.1674-3962.2015.07.17]
點擊復制
C/C復合材料SiC涂層強沖蝕環境的燒蝕性能研究(
)
中國材料進展[ISSN:1674-3962/CN:61-1473/TG]
- 卷:
-
- 期數:
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2015年第7-8期
- 頁碼:
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101-105
- 欄目:
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研究報告
- 出版日期:
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2015-08-18
文章信息/Info
- Title:
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Anti-Ablation Property of SiC Coating on C/C Composites at High Speed
- 作者:
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姚棟嘉; 李賀軍; 張守陽; 李克智; 王永杰
-
西北工業大學 凝固技術國家重點實驗室
- Author(s):
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YAO Dongjia; LI Hejun; ZHANG Shouyang; LI Kezhi; WANG Yongjie
-
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University
-
- 關鍵詞:
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炭/炭復合材料; 碳化硅涂層; 抗燒蝕
- DOI:
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10.7502/j.issn.1674-3962.2015.07.17
- 文獻標志碼:
-
A
- 摘要:
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采用低壓化學氣相沉積法在碳纖維增強碳基（C/C）復合材料表面制備了碳化硅（SiC）涂層，借助XRD與SEM對SiC涂層的微觀結構進行了分析，采用劃痕儀測試了SiC涂層的結合力，研究了涂覆涂層后的C/C復合材料在強沖蝕條件下的燒蝕性能，分析了SiC涂層在強沖蝕條件下的失效機理.結果表明：LPCVD法制備的SiC涂層結構完整，無裂紋，無缺陷；涂層的結合力較弱，為5N；C/C復合材料燒蝕600s后涂層大部分區域保持完好，沖刷最強位置涂層遭到破壞；機械剝蝕是在強沖蝕條件下SiC涂層失效的主要原因。
- Abstract:
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To protect carbon/carbon (C/C) composites against ablation at high speed airflow, SiC coating was prepared on the surface of C/C composites by low pressure chemical vapor deposition. The microstructure of the as-received coating was analyzed by XRD and SEM. The binding force between the coating and composites was tested by scratch tester. The ablation behaviors of the coated samples at high speed airflow were studied. The results show that the as-received SiC coating possesses a crack-free structure. The binding force is 5 N, which is weak between the coating and composites. After ablation for 600 s, most region of the coating remain intact, the coating where the airflow scoured the most severely is damaged. Mechanical denudation is the main reason of the coating’s failure at high speed airflow.
更新日期/Last Update:
2015-08-12