无机多孔膜广泛应用于节能环保等领域，对国民经济的可持续发展具有关键性作用。目前工业用陶瓷和金属多孔膜因材料本身的性能缺陷而很难服役于高温腐蚀性环境。FeAl金属间化合物兼具陶瓷和金属的优点，具有优异的高温抗氧化、硫化和盐腐蚀性能，优良的力学和抗热震性能。将FeAl作为多孔膜研究将有望解决高温含腐蚀性气氛和细微颗粒（如PM2.5）的过滤净化难题。为此，本项目拟利用Kirkendall效应和Fe、Al反应，在大孔径FeAl多孔支撑体上制备微孔径的FeAl多孔膜，研究FeAl多孔膜的孔结构特征及膜与支撑体的界面结合性能。主要包括：FeAl多孔膜的孔隙形成、演变规律以及孔结构特征；膜与支撑体界面的结合强度、热稳定性、抗热震性能、界面应力分布及应力产生机理；建立孔结构参数、界面结合性能与制备工艺的关系，实现孔结构参数及界面结合性能的自主设计与控制。研究工作可为FeAl多孔膜的工业应用奠定理论基础。

Porous inorganic membranes are comprehensive used in energy saving and environmental field. They take key role for national economy continuity development. At present, it is difficult for porous ceramic and metal membtanes to use in high-tempreture corrosion enviroment due to their intrinsic properties. FeAl intermetallics have excellent high-temperature oxidation, sulfurization and molten salts resistance and good mechanics property and weldability. The difficult problems of high-temperature corossion atomsphere and fine particals (such as PM2.5) filtration can be solved by using porous FeAl membrane as filter. Therefore, based on the Kirkendall effect and the reaction between Fe and Al, the FeAl membrane with fine pore diameter was fabricated on the porous FeAl support with big pore diameter. The pore structure charateristics of FeAl membrane and binding properties of interface between membrane and support were studied. It includes that, the pore formation and evolution procedure and pore structure charateristics of porous FeAl membrane fabricated by solid hemi-diffusion and reaction synthesis; the matching between FeAl membrane and support including the bonding strength, heat stability, heat shake property and stress distribution state and its produce mechanism. Founding the relationship between the properties and fabrication process, achieving the free design and control of pore structure parameters and interface bonding property of porous FeAl membrane. The study can establish theoretical foundation for porous FeAl membrane in industry apply.