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Ultra-high temperature oxidation behavior of micro-laminated ZrC/MoSi 2 coating on C/C composite
Corrosion Science ( IF 8.3 ) Pub Date : 2018-03-01 , DOI: 10.1016/j.corsci.2017.12.034
Jingjun Xu , Tiantian Yang , Yang Yang , Yuhai Qian , Meishuan Li , Xiaohui Yin

Abstract A protective coating with transition inner layer of SiC and micro-laminated outer layer of ZrC/MoSi 2 was prepared by packaging siliconizing and magnetron sputtering on C/C composite. The total thickness of the micro-laminated outer layer was 60 μm, and the thicknesses of ZrC and MoSi 2 sublayers were 4 μm and 1 μm, respectively. Ultra-high temperature oxidation test was conducted at 1800 °C for 30 min in static air. The oxidation kinetics of coated C/C composite followed parabolic law. Such attractive ultra-high temperature oxidation resistance was attributed to the formation of a dense and spallation-free oxide scale and low oxygen diffusion coefficient of ZrC x O y .

中文翻译:

C/C复合材料上微层压ZrC/MoSi 2 涂层的超高温氧化行为

摘要 通过渗硅和磁控溅射在C/C复合材料上制备了一种具有过渡内层SiC和微层压外层ZrC/MoSi 2 的保护涂层。微层压外层的总厚度为60μm,ZrC和MoSi 2 亚层的厚度分别为4μm和1μm。超高温氧化试验在静态空气中1800℃下进行30分钟。包覆C/C复合材料的氧化动力学遵循抛物线规律。这种吸引人的超高温抗氧化性归因于ZrC x O y 形成致密且无散裂的氧化皮和低氧扩散系数。
更新日期:2018-03-01
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