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通电产生焦耳热可有效降低碳纳米管与金属间的接触电阻。利用正交试验设计和极差分析的方法,研究通电过程中交变电压幅值和频率以及通电时间对降低碳纳米管接触电阻的影响,得出电压是主要的影响因素。施加幅值为1.5~3.5V之间的交变电压能够获得有效的降阻效果,电阻降低幅度最大可达50%。正交试验和极差分析的方法实现了以较少的实验次数,经济、高效地获取了优化的降阻参数范围及参数组合的目的,将为通电产生焦耳热降低碳纳米管接触电阻的实际应用提供指导。
Power generation Joule heat can effectively reduce the carbon nanotubes and metal contact resistance. The effects of alternating voltage amplitude and frequency and conduction time on reducing the contact resistance of carbon nanotubes were investigated by orthogonal experimental design and range analysis. The results showed that voltage was the main factor. Applied amplitude of 1.5 ~ 3.5V between the alternating voltage to obtain effective resistance reduction effect, the maximum resistance reduction of up to 50%. The method of orthogonal test and range analysis can achieve the objective of economically and efficiently obtaining the optimal range of parameter range and the parameter combination of reduction in resistance with fewer experiments and will reduce the actual contact resistance of carbon nanotubes by Joule heating Application guidance.