碳化硅陶瓷复合材料的制备及吸波性能研究

Preparation and Wave Absorption Performance Research of Silicon Carbide Ceramic Composites

摘要: 吸波材料作为防电磁干扰和电磁污染的有效屏障，广泛应用在军事隐身、航空航天、个体防护等领域。本研究在不同温度下烧结不同镍含量的碳化硅样品，并用网络分析仪对样品的吸波性能进行测试。结果显示，含镍量越高的样品对于透射波和反射波的吸收性能越好。在1200℃下烧结的样品具有较好的对透射波的吸收性能，1000℃具有最差的对反射波的吸收性能。本研究对于掺镍碳化硅材料的制备有重要指导意义，进一步的研究可划分更细的温度梯度和镍含量梯度，有望找到最合适的烧结温度和掺镍量，为新型吸波材料的制备提供思路。

Abstract: As an effective barrier against electromagnetic interference and pollution, absorbing materials are widely used in fields such as military stealth, aerospace, and personal protection. This study sintered silicon carbide samples with different nickel contents at different temperatures and tested their microwave absorption properties using a network analyzer. The results show that samples with higher nickel content have better absorption performance for transmitted and reflected waves. The sample sintered at 1200˚C has good absorption performance for transmitted waves, while 1000˚C has the worst absorption performance. This study has important guiding significance for the preparation of nickel doped silicon carbide materials. Further research can be divided into finer temperature gradients and nickel content gradients, and it is expected to find the most suitable sintering temperature and nickel doping amount, providing ideas for the preparation of new absorbing materials.