利用扫描热探针方法,以微米级的空间分辨率,分析测试了三种金属基复合材料(MMC)界面特征和界面导热性能.应用数学统计方法对扫描热显微镜(SThM)的形貌和热电压数据进行处理和转换,获得界面宽度和界面导热率数据.结果表明,金属基复合材料宏观导热性能与增强相－基体界面的导热性能密切相关.
Abstract
Interfacial features and interfacial thermal conductivity of three kinds of metal matrix composites (MMC) have been comparatively studied by the scanning thermal probing with the micro-sized special resolution. The statistical method was used to process and translate topographic and thermal voltage data of scamming thermal microscopy (SThM). The data of interfacial width and interfacial thermal conductivity were obtained. The results reveal that the macro thermal conductivity of the MMC can be critically dependent on the reinforcing-matrix interfacial thermal conductivity.
关键词
扫描热显微镜(SThM) /
界面热传导 /
金属基复合材料(MMC)
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Key words
scanning thermal microscope (SThM) /
interfacial thermal conductivity /
metal matrix composites (MMC)
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中图分类号：
TB323
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参考文献
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脚注
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基金
国家自然科学基金资助项目(69776030);北京市自然科学基金资助项目(2962006)
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