Thermal Analysis by Means of Differential Scanning Calorimetry of the Characteristic Thermodynamic Temperatures of a Cu-Zr-Al Bulk Metallic Glass

In this study a Cu_(43)Zr_(48)Al_(9)bulk metallic glass prepared by the copper mold casting method is considered.In recent years,Cu-Zr-Al systems like this have enjoyed widespread attention due to their high strength,high hardness,high corrosion resistance and low cost.Here samples of this substance are studied using DSC(Differential scanning calorimetry)to determine the effect of different test conditions(heating rate,sample mass,sample specific surface area and sample crystal phase)on the characteristic thermodynamic temperature of the bulk metallic glass.Experimental results show that almost all of the five characteristic thermodynamic temperatures(T_(g),T_(x),T_(p),T_(m),T_(l))of this substance have higher values when the heating rate is increased.The influence of the variation of sample mass,sample specific surface area and sample crystal phase on the amorphous alloy characteristic temperature is very weak.lower the heating rate,the more developed the crystalline phase in the amorphous alloy will be.