STUDY ON THE SUPERCONDUCTIVITY OF AMORPHOUS COMPOSITE METAL

The amorphous composite metal studied in this paper is a kind of bulk metallic glass (BMG), which has special physical properties at low temperature. Zr-based bulk metallic glass chose as a sample, we report the results of microstructure, superconductivity and its corresponding crystallized sample. According to the results, the superconducting transition temperatures present before and after annealing, Zr-based bulk metallic glass has a negative coefficient of resistivity - temperature before annealing, and the superconducting critical temperature T_c was improved after annealing, for the amorphous T_c = 1.85K and for annealed sample T_c = 3.87K. Amorphous composite structure can help understand the physical properties at low temperature.