supported by the National Natural Science Foundation of China (NSFC) under Grant Nos. 51071013 and 51231001;the National Basic Research Program (973 Program) of China under Grant Nos. 2010CB631200 and 2012CB625100
A β--NiAI alloy with normal purity, a S-doped and a Dy and S co-doped (Y-NiAI alloys were prepared by arc-melting and their corresponding S contents were less than 20 ×10-6, 33 ×10-6 and 22 × 10-6, respectively. ...