摘要
The hardening mechanism of nanocry st alline Sm_(2)Fe_(15-x)M_(x)Ga_(2)C,as well as the effect of small amounts of Cu and Nb additions on the hardening behavior were reported.It is shown that the hardening mechanism is mainly of the pinning-type in Sm_(2)Fe_(15-x)M_(x)Ga_(2)C ribbons.Ret ention of pinning-type behavior,with a marginal increase in coercivity was observed for a small addition of Cu.The hardening mechanism is mainly of nucleation-type in Sm_(2)Fe_(15-x)M_(x)Ga_(2)C with a slightly decrease in coercivity.
基金
Supported by the National Natural Science Foundation of China under Grant Nos.59525101 and 59771024.
