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采用超声波振动法制备了碳纤维增强铝基复合材料,实现了在普通铸造方式下获得组织均匀的碳纤维增强铝基复合材料,应用扫描电镜及万能拉伸试验机,研究超声波振动法制备工艺及超声波振动时间对复合材料力学性能的影响。结果表明,超声波振动对使铝液均匀的完全填充到碳纤维间隙的作用显著。并且拉伸性能随着振动时间的增加而提高。当振动时间从10s增加到30s时,C_f/Al复合材料的抗拉强度从105 MPa提高到130 MPa。
The carbon fiber reinforced aluminum matrix composites were prepared by ultrasonic vibrating method, and the carbon fiber reinforced aluminum matrix composite with uniform structure was obtained by the ordinary casting method. The preparation process and ultrasonic vibration of ultrasonic vibrating method were studied by scanning electron microscopy and universal tensile testing machine Effect of time on the mechanical properties of composites. The results show that the effect of ultrasonic vibration on the uniform filling of aluminum liquid into the carbon fiber gap is significant. Tensile properties increase with increasing vibration time. When the vibration time increases from 10s to 30s, the tensile strength of C_f / Al composites increases from 105 MPa to 130 MPa.