摘要
采用电子陶瓷工艺，在较低烧结温度（150～300℃）下，利用微米级颗粒WO3与纳米级颗粒WO3制备了两种WO3与超高分子量聚乙烯（UHMWPE）复合材料。测试了两种样品的I-V特性。结果表明，微米颗粒制备的样品的非线性系数最高达95．2，纳米颗粒制备的样品非线性系数较小。对样品做了SEM和XRD分析，XRD显示微米颗粒制备的复合材料中，单斜相与三斜相共存，纳米颗粒制备的复合材料以三斜相为主，单斜相不明显。
Two kinds of WO3-UHMWPE composites, which the sizes of starting-WO3 grain are respectively micron and nanometer, were prepared by conventional electronic ceramic process at lower temperature（150--300℃）. The I-V characteristics of these two kinds of composites were measured. The highest nonlinear coefficient of the sample Ⅰ arrives at 95.2, while the sample Ⅱ has very small nonlinear coefficient. SEM and XRD analysis has been carried out on these composites. XRD results show that there are two phases （triclinic and monoclinic） sample series Ⅰ, while only one phase （triclinic） in sample series Ⅱ.
出处
《电工材料》
CAS
2008年第1期17-20,共4页
Electrical Engineering Materials
