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本文通过探讨复合材料在不同的温度空气环境中发生的氧化,测量复合材料经过氧化损伤后的阻尼行为变化,对氧化对于2DCSi C复合材料阻尼行为的影响做出探究,希望能够得出内耗表征复合材料的氧化行为的基本资料。实验器材主要包括电子显微镜、动态力学分析仪。结果得出:在700℃以及1000℃时,复合材料的阻尼性能随着氧化时间承先增长后下降的趋势,而在1300℃时,其阻尼性能随着氧化时间变化性能不大,其性能变化没有表现明显的规律性。
In this paper, the oxidation of composite material under different temperature and air environment was investigated, and the change of damping behavior of composite after oxidative damage was measured to investigate the influence of oxidation on the damping behavior of 2DCSiC composite material. The basic data of the oxidation behavior of the material. Experimental equipment, including electronic microscope, dynamic mechanical analyzer. The results show that at 700 ℃ and 1000 ℃, the damping capacity of the composites increases first and then decreases with the increase of the oxidation time, while the damping property of the composite decreases with the oxidation time at 1300 ℃, and its performance changes Did not show obvious regularity.