Design and formation mechanism of self-organized core/shell structure composite powder in immiscible liquid system
Design and formation mechanism of self-organized core/shell structure composite powder in immiscible liquid system
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DOI：
10.1063/1.2794415
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发表时间：
2007-10
影响因子：
4
通讯作者：
Cuiping Wang;Xingjun Liu;Rongpei Shi;Chen Shen;Yunzhi Wang;I. Ohnuma;R. Kainuma;K. Ishida
中科院分区：
文献类型：
--
作者：
Cuiping Wang;Xingjun Liu;Rongpei Shi;Chen Shen;Yunzhi Wang;I. Ohnuma;R. Kainuma;K. Ishida
在相图计算方法的指导下，采用气体雾化法制备了具有核/壳结构的自组织Cu合金/不锈钢复合粉末，并采用相场法模拟了自组织核/壳结构复合粉末的形成过程。本文从热力学和动力学的角度对自组织核/壳结构复合粉体的形成作了较详细的解释。这种核/壳结构复合粉末具有高强度和耐腐蚀性（富Fe相）与高导电性和导热性（富Cu相）的良好组合，在电子器件中具有许多潜在的先进应用。
Under the guidance of the calculation of phase diagrams method, the self-organized Cu alloy/stainless steel composite powders with a core/shell microstructure were developed based on the gas atomization process, and the formation evolution of self-organized core/shell structure composite powders was modeled by the phase field method. This paper gives a more detailed explanation for the formation of self-organized core/shell structure composite powders from the viewpoints of thermodynamics and kinetics. Such core/shell structure composite powders have good combination of high strength and corrosion resistance (Fe-rich phase) and high electric and thermal conductivities (Cu-rich phase) with many potential advanced applications in electronic devices.