采用连续成型工艺压制纳米ZnO素坯,常压烧结制备了高密度纳米ZnO陶瓷.场发射扫描电镜显示,纳米ZnO陶瓷体微观组织紧密、晶粒尺寸和密度分布均匀.在小电流区测定了纳米ZnO陶瓷的I-V曲线.结果表明,高密度纳米ZnO陶瓷具有良好的非线性伏安特性,其非线性系数高于传统的ZnO陶瓷.
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