Dielectric Character Due to the Percolative Growth of Clusters in a Metal-Ceramics Mixture
Dielectric Character Due to the Percolative Growth of Clusters in a Metal-Ceramics Mixture
复制标题
金属陶瓷混合物中团簇渗透生长引起的介电特性
DOI：
10.1143/jjap.30.3482
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
K. Yoshida
中科院分区：
文献类型：
--
作者：
K. Yoshida
测量了介电性能以观察Nb体积分数f在0至0.15范围内的Nb-Al 2 O3烧结混合物中金属团簇的生长。随着Nb团簇变大，有效介电常数e*（或电容）增加以发散，反映了在f=0.15左右发生渗滤转变。幂律被发现保持为e* 的临界指数为0.6。
The dielectric property was measured to observe growth of metallic clusters in Nb-Al2O3 sintered mixtures with Nb volume fraction f ranging from 0 to 0.15. As Nb clusters grow large, the effective dielectric constant e* (or capacitance) increases to diverge, reflecting the occurrence of the percolation transition at around f=0.15. The power law was found to hold for e* with a critical exponent of 0.6.