Micro-Superplastic Behavior of Copper Oxide in AgCuO Composites

摘要:

采用扫描电镜、扫描透射电镜、透射电镜等分析手段，对银氧化铜复合材料中氧化铜颗粒的结构进行了分析。结果表明，可变形氧化铜的晶体结构为立方结构，其变形量最大可达300%；不变形的氧化铜颗粒的晶体结构为单斜结构。但是对于这种立方氧化铜的变形机理尚不明确，需要进一步的研究

Abstract:

In the investigation of AgCuO composites, we have found a type of copper oxide particles with a superplastic deformability behavior, which is similar to that of metals. To find the reason of the deformability of the copper oxide particles. SEM, STEM and TEM were used to analyze their crystal structures in AgCuO composites, The results show that the copper oxide particles with micro-superplasticity in the composites have cubic crystal structure, and their maximum elongation can be up to 300%, The copper oxide particles with no micro-superplasticity in the composites have monoclinic crystal structure. But the micro-superplastic behavior and mechanism of the copper oxides with the cubic crystal structure are not clear for the time being, the further investigation could be needed