Ablation behavior of advanced TaSi2-based coating on carbon-bonded carbon fiber composite/ceramic insulation tile in plasma wind tunnel
Ablation behavior of advanced TaSi2-based coating on carbon-bonded carbon fiber composite/ceramic insulation tile in plasma wind tunnel
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DOI：
10.1016/j.ceramint.2017.11.122
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发表时间：
2018-02-15
影响因子：
5.2
通讯作者：
Sun, Yueqi
中科院分区：
文献类型：
--
作者：
Du, Bin;Hong, Changqing;Sun, Yueqi
利用等离子风洞对碳纤维(CBCF)复合材料和莫来石纤维隔热瓦复合TaSi2基涂层的新型混杂热防护材料(TPM)进行了研究。莫来石纤维保温砖是通过陶瓷粘结到涂层CBCF复合材料上的。结果表明，在低热流密度和低动态压力下，表面温度在400℃到1200℃之间。然而，在高热流密度和动态压力下，表面温度迅速达到1400摄氏度，也观察到TaSi2基涂层的损伤。在烧蚀过程中，混合结构的冷壁温度保持在室温。此外，由于TaSi2基涂层的消耗，TPM无效。
Novel hybrid thermal protection material (TPM), consisting of TaSi2-based coating on carbon-bonded fiber (CBCF) composites and mullite fiber insulation tiles, is investigated using a plasma wind tunnel. Mullite fiber insulation tile is ceramically bonded to coated-CBCF composites. Results show that surface temperatures range from 400 degrees C degrees C to 1200 degrees C degrees C at low heat flux and dynamic pressure. However, at high heat flux and dynamic pressure, the surface temperature rapidly reaches 1400 degrees C degrees C, and the damage to the TaSi2-based coating is also observed. The cold-wall temperature of the hybrid structure remains at room temperature during ablation. In addition, TPM is invalid because of the consumption of the TaSi2-based coating.