Use of ceramics particles as hard materials is investigated for further improving the brake performance of alloyed cast iron shoe which has high performance and are being used on high speed trains. It is made clear that feeding SiC particles into the interface between wheel and shoe improves the brake performance about 20% higher. There are several practical ways to do this. They are SiC particle jetting, pressing a block made of SiC particle against wheel tread and embedding blocks of SiC particles into the cast iron shoe. All of them are confirmed to be effective for improving the brake performance of the cast iron shoe.