Thermal conductivity and interfacial conductance of AlN particle reinforced metal matrix composites
Thermal conductivity and interfacial conductance of AlN particle reinforced metal matrix composites
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DOI：
10.1063/1.3553870
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发表时间：
2011-03
影响因子：
3.2
通讯作者：
M. Kida;L. Weber;C. Monachon;A. Mortensen
中科院分区：
文献类型：
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作者：
M. Kida;L. Weber;C. Monachon;A. Mortensen
通过压力渗透生产的氮化铝（AlN）颗粒增强金属基复合材料的特征在于其导热性。该复合材料旨在覆盖分散颗粒和基体之间的广泛相衬度；这是通过使用 Cu、Al、Sn 和 Pb 作为基体改变基体电导率来实现的。 AlN 和基体金属之间的界面热导 (hc) 是通过改变 AlN 颗粒的尺寸来确定的，使用 Hasselman-Johnson 方法和微分有效介质 (DEM) 模型根据测得的复合材料电导率值计算 hc。此外，使用瞬态热反射 (TTR) 方法在平坦 AlN 基板上沉积的薄铝层上直接在 AlN/Al 界面处测量 hc，以发现与直接从不同粒径的 Al/AlN 复合材料得出的值非常吻合，从而证实了此处用于测量 hc 的方法。研究数据表明，AlN 金属中的 hc...
Aluminum nitride (AlN) particle reinforced metal-matrix-composites produced by pressure infiltration are characterized in terms of their thermal conductivity. The composites are designed to cover a wide range of phase contrast between the dispersed particles and the matrix; this is achieved by changing the matrix conductivity using Cu, Al, Sn, and Pb as the matrix. The interface thermal conductance (hc) between AlN and the matrix metals is determined by varying the size of the AlN particles using the Hasselman–Johnson approach and the differential effective medium (DEM) model to calculate hc from measured composite conductivity values. In addition, hc is measured directly at the AlN/Al interface using the transient thermoreflectance (TTR) method on thin aluminum layers deposited on flat AlN substrates to find good agreement with the value derived directly from Al/AlN composites of variable particle size and thus confirm the approach used here to measure hc. Data from the study show that hc at AlN-metal in...