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Ti_3SiC_2在900 ℃与1000 ℃下的热腐蚀行为
Hot corrosion of Ti_3SiC_2-based ceramic in molten Na_2SO_4 at 900 ℃ and 1000 ℃
查看参考文献8篇
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文摘
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研究了Ti_3SiC_2三元层状陶瓷材料在900 ℃和1000 ℃下由Na_2SO_4盐膜引起的热腐蚀行为。用XRD及SEM分析了腐蚀产物膜的成分、结构和形貌等。实验表明，腐蚀膜由TiO_2和SiO_2混合组成：在结构上明显地分成两层，外层晶粒粗大且多孔，内层晶粒细小且致密。Ti_3SiC_2与熔融盐接触遭受严重的腐蚀。 |
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其他语种文摘
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The hot corrosion behaviors of polycrystalline bulk samples of Ti_3SiC_2 coated with Na_2SO_4 film were studied at 900 ℃ and 1000 ℃ in air. The surface morphology, structure and composition of scales were investigated by SEM/EDS and XRD. It was shown that Ti_3SiC_2 suffered from serious hot corrosion at 900 ℃ and 1000 ℃. The oxide scales have a duplex structure. The outer layer consists of coarse grains with many pores, while the inner layer consists of fine grain and is compact. The mixtures of TiO_2 an SiO_2 formed during the hot corrosion are different from those of Ti_3SiC_2 oxidized in air. |
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来源
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金属学报
,2002,38(4):417-420 【核心库】
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关键词
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Ti_3SiC_2
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热腐蚀
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氧化膜
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地址
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中国科学院金属研究所, 沈阳材料科学国家（联合）实验室, 沈阳, 110016
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0412-1961 |
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学科
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金属学与金属工艺 |
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基金
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国家自然科学基金国家杰出青年科学基金
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文献收藏号
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CSCD:1027757
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