粉末冶金技术2017，Vol.35Issue(3)：195-201,7.DOI:10.19591/j.cnki.cn11-1974/tf.2017.03.006
非对称Fe3Al金属间化合物粉末滤芯研究
Study on the asymmetric Fe3Al intermetallic compound powder filter element
摘要
Abstract
The asymmetric Fe3Al intermetallic compound powder filter elements were prepared by wet spraying and vacuum high temperature sintering. The microstructures, compositions, and phases of the filter elements were observed and analyzed by scanning electron microscopy (SEM), energy disperse spectroscopy (EDS), and X-ray diffraction (XRD). The pore characteristics of the filter elements in different surface membrane thickness were investigated. The effects of binder and curing agent on the mechanical properties of the filter elements were studied. The bonding strength between the surface membrane and the matrix of experimental samples was tested. The results show that, the particles on the filter surface are still spherical after vacuum sintering, and the interconnected sintered neck is formed between the particles. The sintered neck is also formed between the coarse particles of filter matrix and the fine particles of membrane. The binder and curing agent have no obvious effect on the mechanical properties of the filter. The bonding strength between the surface membrane and the matrix is more than 25 MPa.关键词
金属间化合物/粉末滤芯/表面膜层/孔隙特性Key words
intermetallic compound/powder filter element/surface membrane/pore characteristics分类
矿业与冶金引用本文复制引用
顾虎,杨军军,郭辉进,王浩,刘冠颖,赵京辉..非对称Fe3Al金属间化合物粉末滤芯研究[J].粉末冶金技术,2017,35(3):195-201,7.基金项目
国家高技术研究发展计划资助项目(2009AA032603) （2009AA032603）
