【摘要】 用划痕测试方法测定了ZnOw填充尼龙1010复合材料的划痕系数和划痕过程中的声发射信号。结果发现,当ZnOw含量小于20%(质量分数)时,划痕系数随ZnOw的含量线性增加。纯尼龙材料在划痕过程中没有发生声发射事件,而复合材料的声发射振铃计数随ZnOw的含量线性增加。根据ZnOw的特殊空间结构,建立了其在尼龙基体的细观几何模型,并根据模型得出了划痕系数与晶须含量的关系。模型计算结果与试验结果相一致。更多还原

【Abstract】 The coefficients of scratch of nylon 1010 filled with ZnOw were measured with scratch method.The acoustic emission signals were monitored by acoustic emission sensor during scratch.The results indicate that the coefficients of scratch linearly increase with the content of ZnOw until the content reaches 20%.There is no acoustic emission incident during the scratch of pure nylon 1010.Acoustic emission counter rises with the content of ZnOw.A micro-structural geometrical model was built according the special tetrapod shape.The variation laws of coefficients of scratch and acoustic emission were analyzed on the basis of this model,which are agreed with the experimental results.更多还原