Info

Title:

Research Progress on Hierarchical Porous Metal Materials for Efficient Thermal Management

Author(s):

SHI Er;  WANG You-lan;  YE Shuang-rui;  WANG Qiong;  ZHAO Bin;  PENG Qi

School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha 410114, China

Keywords:

hierarchical porous surface;  metal;  preparation method;  thermal management;  boiling heat transfer

CLC:

PACS:

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DOI:

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DocumentCode:

Abstract:

Improving thermal management is crucial for addressing the safety and stability associated with high heat flux density and high power in emerging electronic devices and mechanical components. Porous metal, which possess advantageous structural and functional properties, offer high porosity, specific surface area, pore connectivity, and electrical and thermal conductivity, making them an attractive material choice for this purpose. As the service environment evolves, there is a growing need for enhanced performance from porous metals. In contrast to traditional single-layer porous metals, hierarchical porous metals have gained attention for their superior comprehensive performance, which is attributed to their multi-level pore structure features. This study provided a comprehensive review of the preparation methods for hierarchical porous metals used in efficient thermal management, such as sintering, electrochemical deposition, and selective laser melting. It also summarized the latest research progress in applying these methods to prepare hierarchical porous materials, analyzing and discussing the advantages and disadvantages of various preparation techniques, as well as the key parameters of hierarchical porous structures and the evaluation of thermal management performance. Additionally, the research status of heat management based on two-phase heat transfer in thermal management in fields such as aerospace, power electronics and new energy vehicles was introduced.