【摘要】 在ＺＡ２７合金中添加重量分数为５％Ｓｉ并采用喷雾共沉积技术制备了ＳｉＣ体积分数为１０％的锌基复合材料。采用多功能、声频内耗仪对材料的低高频内耗行为进行了测量。结果发现，较之常规铸造ＺＡ２７合金，在测试温度、频率范围内，材料的阻尼能力均有较大幅度的提高；挤压后材料的阻尼能力进一步提高。在材料微观组织形貌分析的基础上，根据Ｓｃｈｏｅｃｋ理论分析了材料的主要内耗机制更多还原

【Abstract】 The effect of SiC particulate on the resultant damping behavior of the asspray deposited high silicon alloy ZA27 was investigated in an effort to develop a high damping materials. The high and low frequency internal friction behavior was conducted on Sound Frequency and Multifunctional Internal Friction Apparatus. The experimental results show that the damping capacities of the MMCs reinforced by SiC particulate were improved a lot, and furthermore, hot extrusion improved the damping capacities. Finally, the operative damping mechanisms were discussed in the light of the data obtained from characterization of microstructure based on the theory of Schoeck.更多还原