The Crystallization Behavior of Amorphous Fe_(81.5)P_(18.4)Yb_(0.1)Alloys by laser Irradiation
Zhang Yazeng ;Du Xianzhi Zhai ;Linhua(Department of Physics)Peng Deyeng(Shanghai Second Institute of Education)
The crystallization behavior of Fe_(81.5)P_(18.4)Yb_(0.1) amorphous alloy irra- diated with XeCl excimer laser beam is studied by SEM and DSC respectively. We discover some shock wave pattem crystal layers in which crystal grains dis- tribute regularly on the cross section of sample after irradiation. The size of crystal grains gradually decreases from the surface of sample to the depth of sample appearing in regular microcrystal array with its size in the order of nm. The DSC measurement shows that the irradiated sample has higher crystallized temperature than that of the unirradiatod one and improved its thermosta- bility.The result shows that the irradiation of laser beam on the amorphous alloy may not only improve the quality of material but also be expected to be one of methods to prepare nanocrystalline n1aterial.
【CateGory Index】： O75