Homologous layered InFeO 3 (ZnO) m : new promising abradable seal coating materials

Abstract As promising abradable seal coating materials used in high temperature range, the homologous layered InFeO 3 (ZnO) m ( m = 1, 2, 3…20) have attracted great attention. In this short review, we summary the research progress in InFeO 3 (ZnO) m that were developed in our group. We first introduced a series of conventional abradable seal coating materials as a research motivation. Second, the phase composition and crystal structures of InFeO 3 (ZnO) m system were presented. Then, their thermophysical properties, as the most important part, were introduced in detail. At last, the mechanical properties such as hardness, friction coefficient, erosion wear resistance of InFeO 3 (ZnO) m system were also described. Our summary indicates that InFeO 3 (ZnO) m systems are promising abradable seal coating materials.