赵培峰,赵江辉,石红信,邱然锋,贾淑果

• 1:河南科技大学材料科学与工程学院
• 2:有色金属共性技术河南省协同创新中心

摘要(Abstract)：

采用粉末冶金法+热压工艺制备了不同Al_2O_3颗粒直径的1 vol%Al_2O_3/Cu基复合材料，使用光学显微镜和扫描电镜(SEM)观察了复合材料的显微组织，利用电子拉伸试验机测试了复合材料的力学性能。基于弹/塑性理论推导出了复合材料中颗粒周边的弹性区宽度的表达式。结果表明：Al_2O_3颗粒直径对Al_2O_3/Cu基复合材料强度及基体晶粒尺寸有着较大的影响；Al_2O_3颗粒直径越大，Al_2O_3/Cu基复合材料的抗拉强度、屈服强度越小；当Al_2O_3颗粒直径为5μm时，Al_2O_3/Cu基复合材料的抗拉强度和屈服强度分别为207和90 MPa,是铜试样的95.8%和95.7%。

关键词(KeyWords)： Al_2O_3/Cu复合材料;强度;热失配

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51875177);; 河南省科技攻关项目(222102220067)

作者(Author): 赵培峰,赵江辉,石红信,邱然锋,贾淑果

DOI: 10.13289/j.issn.1009-6264.2023-0001

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