| 溶胶-凝胶制备的Al_2O_3-SiO_2复合陶瓷涂层抗原子氧侵蚀性能研究 |
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| 引用本文： | 多树旺,刘庭芝,邹小平,钟鸿雁,孙晓琳,杨振华.溶胶-凝胶制备的Al_2O_3-SiO_2复合陶瓷涂层抗原子氧侵蚀性能研究[J].稀有金属材料与工程,2009,38(Z2). |
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| 作者姓名： | 多树旺 刘庭芝 邹小平 钟鸿雁 孙晓琳 杨振华 |
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| 作者单位： | 1. 江西科技师范学院,江西省材料表面工程重点实验室,江西,南昌,330013
2. 南昌工程学院,江西,南昌,330029 |
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| 基金项目： | 江西省自然科学基金，江西省工业科技攻关项目，江西省教育厅科技项目 |
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| 摘 要： | 采用溶胶-凝胶法,以异丙醇铝、正硅酸乙酯为原料制得了稳定、均一的溶胶,浸涂在聚酰亚胺表面干燥后获得了致密透明的涂层.采用空间综合环境地面模拟设备对试样进行了原子氧(Atomic Oxygen, AO)暴露实验.测试表明,溶胶-凝胶制备的Al_2O_3-SiO_2涂层抗原子氧侵蚀性能优异,抗原子氧侵蚀性能比聚酰亚胺基体提高了2个数量级以上.经原子氧暴露后的复合陶瓷涂层质量几乎没有发生变化.经FTIR和XPS分析表明,在原子氧暴露后涂层表面产生的是Al_2O_3-SiO_2复合物.SEM分析表明,无涂层的聚酰亚胺原子氧暴露后表面非常粗糙且表面呈现地毯状形貌,而涂覆涂层的试样暴露前后表面形貌没有发生变化.采用紫外-可见光-近红外分光光度计对涂覆溶胶-凝胶复合陶瓷涂层后的试样分析表明原子氧暴露前后试样表面的光学性能也未发生变化.
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| 关 键 词： | 原子氧 防护涂层 溶胶-凝胶 |
Properties of Al_2O_3-SiO_2 Protective Coatings Prepared by Sol-Gel Process in Atomic Oxygen Environment |
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| Duo Shuwang,Liu Tingzhi,Zou Xiaoping,Zhong Hongyan,Sun Xiaolin,Yang Zhenhua.Properties of Al_2O_3-SiO_2 Protective Coatings Prepared by Sol-Gel Process in Atomic Oxygen Environment[J].Rare Metal Materials and Engineering,2009,38(Z2). |
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| Authors: | Duo Shuwang Liu Tingzhi Zou Xiaoping Zhong Hongyan Sun Xiaolin Yang Zhenhua |
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| Affiliation: | Duo Shuwang1,Liu Tingzhi1,Zou Xiaoping1,Zhong Hongyan1,Sun Xiaolin2,Yang Zhenhua1 (1. Jiangxi Key Laboratory of Surface Engineering,Jiangxi Science & Technology Normal University,Nanchang 330013,China) (2. Nanchang Institute of Technology,Nanchang 330029,China) |
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| Abstract: | Highly transparent,uniform and corrosion resistant Al2O3-SiO2 composite coatings were prepared on polyimide substrates by sol-gel process from stable sol solutions taking Al(C3H7O)3 and TEOS as precursor. The coatings irradiated by atomic oxygen (AO) generated in a ground simulation facility were investigated by Scanning Electron Microscopy (SEM),X-ray Photoelectron Spectroscopy (XPS) and Fourier Transform Infrared Spectroscopy (FTIR). The results showed that the Al2O3-SiO2 coatings had excellent AO resista... |
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| Keywords: | Al_2O_3 SiO_2 atomic oxygen protective coatings Al_2O_3 SiO_2 sol-gel |
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