Positive and Negative Temperature Dependence in the Resistivity of Crystallized Zr-Fe-Ni Metallic Glasses

Materials

关键词: metallic glasses;    amorphous alloys;    electrical resistivity;    recrystallization;    nano-crystallization;   

DOI  :  10.3390/ma3125212

来源: mdpi

【 摘 要 】

Ni_0.25Fe_0.75Zr₃ metallic glassy ribbons were annealed in evacuated quartz ampoules beyond the crystallization temperatures (T_x ~655 K) over the range 773 to 1,173 K for varying periods of time. The resistivity of samples annealed over the temperature range 923 to 1,073 K for periods less than four hours increased as a function of decreasing temperature, while it decreased for samples annealed for more than four hours or at temperatures below 923 K or above 1,073 K for any period of time. All the annealed samples were found to contain only Ni, Fe and Zr from energy dispersive X-ray (EDX) analyses.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.