Critical assessment: Recent developments in fabrication of ceramic particle reinforced iron matrix wear resistant surface composite using infiltration casting technology

Ceramic particle reinforced iron matrix composites are one of the most promising wear resistant materials for tough conditions. Up to now, varieties of methods have been developed to fabricate this material, e.g. the infiltration casting process, which is especially beneficial to prepare the surface composite. Based on this method, a honeycomb structure of surface composite has been designed aiming to increase its toughness and interface strength. Moreover, zirconia toughened alumina (ZTA) is a perfect choice of reinforcement for wear resistant composite under high impact. The wettability between ZTA particle and iron matrix is a key factor to determine the performance of composite; the wettability can be improved by introducing active elements into their interface.