Homologous layered InFeO3(ZnO)m:new promising abradable seal coating materials

摘要

As promising abradable seal coating materials used in high temperature range, the homologous layered InFe03(Zn0)m(m = l, 2, 3...20) have attracted great attention. In this short review, we summary the research progress in InFe03(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 InFe〇3(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 InFe03(ZnO)m system were also described. Our summary indicates that InFe03(ZnO)m sys?tems are promising abradable seal coating materials.