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In situ HRTEM observations of the formation of reaction phases from liquid Ag-Cu-Ti alloy and SiC, Si and C substrates

机译:由液态Ag-Cu-Ti合金与SiC,Si和C衬底形成反应相的原位HRTEM观察

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摘要

Processes of reaction between Ag-Cu-Ti molten alloy and silicon, carbon and SiC substrates were directly observed by in situ heating high-resolution electron microscopy. It was found that TiC grew in a layer by layer mode at the spreading front, and that a double layer consisting of an outer Ti_5Si_3 and an inner TiC layers was formed by the reaction between the SiC substrate and the molten alloy. The morphology of the spreading front was also found to depend on the chemical composition of the dissociated substrate in the molten alloy.
机译:通过原位加热高分辨率电子显微镜直接观察到Ag-Cu-Ti熔融合金与硅,碳和SiC衬底之间的反应过程。发现TiC在扩展前以逐层模式生长,并且通过SiC衬底与熔融合金之间的反应形成了由外Ti_5Si_3和内TiC层组成的双层。还发现铺展前沿的形态取决于熔融合金中离解的基体的化学组成。

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