Electric conductivity and percolation threshold research of Cu-Cu₂O cermet

来源期刊：中国有色金属学报(英文版)2005年第z2期

论文作者：邵文柱 谢宁 李义春 甄良 冯立超

文章页码：297 - 301

Key words：cermet； percolation threshold； electrical conductivity

Abstract: Cu-Cu₂O cermets were prepared via hot pressing（HP） or in situ reduction hot pressing （ISPHP）. The results of electric conductivity tests show that the percolation threshold of the cermet, which is prepared by HP, is lower than that of cermet prepared by ISRHP. The electric conductivity and the percolation threshold depend on four influencing factors: the content, the size, the shape and the distribution of Cu phase. The electric conductivity decreases with the increase of Cu particle size, and decrease of the aspect ratio of Cu particle. The more even the Cu phase distribution, the higher the electric conductivity of the cermets.