临界体积分数 meaning in English
critical volume fraction
Examples
- A dilution of the cb volume fraction due to the thermal volumen expansion of the composites is estimated . if the cb volume fraction decrease to the percolation threshold , ptc effect of the composites occur
随着聚合物基体的热膨胀，无论是结晶聚合物基体或非晶聚合物基体体系，只要导电填料的体积分数被稀释到临界体积分数以下，复合材料就会产生ptc效应。 - By using this model , the contribution of the thermal volume expansion of the matrix to the ptc transition of the composite is quantitatively estimated . the theory and experiment revealed that the conductive mechanism of abrupt resistivity increase at ptc transition region was equivalent as abrupt resistivity increase at the percolation curve close the critical volume fraction
可以利用这个模型，对基体体积膨胀对ptc转变的贡献进行了定量分析，表明ptc转变区的电阻突变与渗流曲线在临界体积分数附近的电阻率突变在导电机制上是相同的。