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C/C composite material surface anti-oxidation gradient coating and preparation method thereof
The invention discloses a C/C composite material surface anti-oxidation gradient coating and a preparation method thereof, and the preparation method comprises the following steps: respectively preparing a suspension A, a suspension B and a suspension C: preheating a C/C-SiC sample, sequentially dipping the C/C-SiC sample in the suspension A, the suspension B and the suspension C in the step 1 for 10-20s, taking out, cleaning, and drying to obtain a B2O3 (at) SiO2/SiB6 (at) Al2O3-SiC coating sample. According to the preparation method, the toughness of the SiC-B2O3 (at) SiO2/SiB6 (at) Al2O3 coating sample is improved, the SiC-B2O3 (at) SiO2/SiB6 (at) Al2O3 coating sample can form flowing SiO2.B2O3 at a high temperature, high-temperature protection can be carried out on a C/C composite material matrix, cracks appearing on the SiC-B2O3 (at) SiO2/SiB6 (at) Al2O3 coating sample can be self-repaired, and the protection effect of the coating is improved.
本发明公开了一种C/C复合材料表面抗氧化梯度涂层及其制备方法，包括分别制备悬浮液A、悬浮液B与悬浮液C：将C/C‑SiC试样预热后，依次进过所述步骤1中悬浮液A、悬浮液B以及悬浮液C浸渍10～20s后取出，清洗、烘干得到B2O3@SiO2/SiB6@Al2O3‑SiC涂层试样。该制备方法增加了SiC‑B2O3@SiO2/SiB6@Al2O3涂层试样的韧性，且SiC‑B2O3@SiO2/SiB6@Al2O3涂层试样在高温下可形成流动的SiO2·B2O3能够对C/C复合材料基体进行高温保护及SiC‑B2O3@SiO2/SiB6@Al2O3涂层试样上出现的裂纹进行自修复，提高涂层的防护作用。
C/C composite material surface anti-oxidation gradient coating and preparation method thereof
The invention discloses a C/C composite material surface anti-oxidation gradient coating and a preparation method thereof, and the preparation method comprises the following steps: respectively preparing a suspension A, a suspension B and a suspension C: preheating a C/C-SiC sample, sequentially dipping the C/C-SiC sample in the suspension A, the suspension B and the suspension C in the step 1 for 10-20s, taking out, cleaning, and drying to obtain a B2O3 (at) SiO2/SiB6 (at) Al2O3-SiC coating sample. According to the preparation method, the toughness of the SiC-B2O3 (at) SiO2/SiB6 (at) Al2O3 coating sample is improved, the SiC-B2O3 (at) SiO2/SiB6 (at) Al2O3 coating sample can form flowing SiO2.B2O3 at a high temperature, high-temperature protection can be carried out on a C/C composite material matrix, cracks appearing on the SiC-B2O3 (at) SiO2/SiB6 (at) Al2O3 coating sample can be self-repaired, and the protection effect of the coating is improved.
本发明公开了一种C/C复合材料表面抗氧化梯度涂层及其制备方法，包括分别制备悬浮液A、悬浮液B与悬浮液C：将C/C‑SiC试样预热后，依次进过所述步骤1中悬浮液A、悬浮液B以及悬浮液C浸渍10～20s后取出，清洗、烘干得到B2O3@SiO2/SiB6@Al2O3‑SiC涂层试样。该制备方法增加了SiC‑B2O3@SiO2/SiB6@Al2O3涂层试样的韧性，且SiC‑B2O3@SiO2/SiB6@Al2O3涂层试样在高温下可形成流动的SiO2·B2O3能够对C/C复合材料基体进行高温保护及SiC‑B2O3@SiO2/SiB6@Al2O3涂层试样上出现的裂纹进行自修复，提高涂层的防护作用。
C/C composite material surface anti-oxidation gradient coating and preparation method thereof
一种C/C复合材料表面抗氧化梯度涂层及其制备方法
HUANG JIANFENG (author) / FAN HAOWEN (author) / CAO LIYUN (author) / SHEN XUETAO (author) / YUAN MENG (author) / YAN HANG (author) / JI TIAN (author) / LIU MINGXIN (author)
2024-06-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Preparation method of gradient anti-oxidation coating on surface of C/C composite material
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