Investigation Of The Metal Rubber Pore Structure And The Relationship With Thermal Conductivity

As a new type of functional material, the research of the Metal Rubber (MR) mainly concentrated in filtration, damping, vibration isolation and so on. With the development of heat pipe and thermal protection, the study of its thermal performance is becoming more and more important. This thesis mainly divided into two parts:the research of MR pore structure and its thermal conductivity.Porosity, specific surface area, average pore size and the maximum pore size are important pore structure parameters for the characterization of porous materials, and these parameters have a significant impact on the hydrodynamic performance, heat-conducting property and filtering performance. Using a combination of theoretical analysis and experimental verification, systematic study is made on porosity, specific surface area, average pore size and the maximum pore size and other microscopic pore structure parameters, and corresponding theoretical formulas is deduced, and test by the mercury injection method. The study results show that the experimental results are in good agreement with the theoretical formula.Thermal conductivity is one of the important parameters of the characterization of thermal conductive performance. By the analysis of the MR microstructure and the development of micro unit model, the process of heat conduction was reasonably simplified. The equivalent heat conductivity of the MR was theoretical deduced, and adopting Hot Disk to measure the thermal conductivity of the MR with different parameters. Using a combination of theoretical analysis and experimental verification method to study the microscopic parameters effect on its thermal conductivity, and simplify the theoretical formula.