Aluminum reference crystal abradable seal coating as well as preparation method and application thereof

The invention provides an aluminum matrix crystal abradable seal coating and a preparation method and application thereof, and the preparation method comprises the following steps: A) carrying out laser ablation square lattice texturing treatment on the surface of a resin matrix composite material to obtain a pretreated resin matrix; (B) Al-Cu-Fe-Sc series quasi-crystal powder is used for preparing an aluminum-based quasi-crystal coating on the surface of the pretreated resin matrix through an explosion spraying method; the mass percent of the quasicrystal phase in the Al-Cu-Fe-Sc series quasicrystal powder is 90 to 98 percent; and C) preparing the AlSi-graphite abradable sealing surface layer on the surface of the aluminum reference crystal coating by using the mixed powder of Al, Si and graphite through an explosion spraying method. The Al-Cu-Fe-Sc reference crystal flame-retardant heat-insulation middle layer has a low heat conductivity coefficient, and the heat insulation efficiency reaches 40-50% in the