【摘要】 通过热压技术制备Cu₂O-10CuAlO₂-xCu金属陶瓷材料,并对其导电性能进行了研究。结果表明,Cu₂O-10CuAlO₂-xCu在Cu含量超过15wt％后呈金属导电性。材料的微观结构观察及物理性能测试表明,金属陶瓷材料的电导率不仅取决于材料的金属相含量,还取决于金属相颗粒尺寸和孔隙率的大小。材料中金属相的颗粒尺寸取决于热压工艺参数,随着热压温度的升高而增大,但随热压压力的升高而减小。更多还原

【Abstract】 Cu₂O-10CuAlO_2-x Cu cermets were fabricated using hot pressing technology, and their electro-conductivity was studied, The results show that the Cu₂O-10CuAlO_2-x Cu cermet material will be an electro conductor when the Cu content is higher than15 wt%. The miCrostructure of the material shows that the electro-conductivity of the cermet material depends on the proportion of the metal phase, the porosity and the particle size of the metal phase.更多还原