采用喷射共沉积方法制备了SiCp/Gr/6061铝合金混杂金属基复合材料, 研究了其阻尼特性.结果表明: 该材料在150℃附近有一温度内耗峰, 且随频率增加该峰峰位向高温移动而峰高降低.通过Arrhenius方程测得内耗峰的激活能为1.17eV.分析认为: 该峰具有弛豫特性, 它是在热与应力的双重作用下, 由位错拖曳点缺陷运动所致, 符合位错诱生阻尼机制.
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