累积叠轧工艺对AgSnO2复合材料组织和性能的影响

Microstructural Characteristics and Mechanical Properties Evolution of AgSnO2 Composites During Accumulative Roll-bonding Pro

摘要:

采用原位反应合成法制备AgSnO2复合材料，在温度700℃对其进行累积叠轧。利用XRD、光学显微镜等研究了AgSnO2复合材料的物相组成以及各轧制道次后样品的金相组织，结果表明，累积叠轧工艺对AgSnO2复合材料的显微组织均匀化程度影响显著。实验测试了各道次轧制后样品的硬度、密度以及电阻率与轧制道次的关系，分析主要因素对样品力学与电学性能的影响机理。

Abstract:

Silver copper oxide composites were prepared by the in-situ synthesized method. The samples were conducted by Accumulative Roll-bonding (ARB) at the temperature of 973K. The phase composition of AgSnO2 composite materials and the mechanical properties of the samples after ARB process were characterized by X-ray diffraction and optical microscope. The results show that accumulative roll-bonding produces a significant effect on the degree of homogenization AgSnO2 composite micro-structure. The density, hardness, resistivity of 4-passes ARB processed AgSnO2 composite material was studied, and the main factors affected the properties of the samples was discussed.