12054-25-0Relevant academic research and scientific papers
Correlation between viscous-flow activation energy and phase diagram in four systems of Cu-based alloys
Ning, Shuang,Bian, Xiufang,Ren, Zhenfeng
, p. 3633 - 3637 (2010)
Activation energy is obtained from temperature dependence of viscosities by means of a fitting to the Arrhenius equation for liquid alloys of CuSb, CuTe, CuSn and CuAg systems. We found that the changing trend of activation energy curves with concentration is similar to that of liquidus in the phase diagrams. Moreover, a maximum value of activation energy is in the composition range of the intermetallic phases and a minimum value of activation energy is located at the eutectic point. The correlation between the activation energy and the phase diagrams has been further discussed.
Experimental investigation and thermodynamic calculation of the Cu-Ge-Sb system
Premovi?, Milena,Du, Yong,Mini?, Du?ko,Zhang, Cong,Manasijevi?, Dragan,Balanovi?, Ljubi?a,Markovi?, Ivana
, p. 820 - 832 (2017)
Phase diagram of the Cu-Ge-Sb ternary system has been investigated experimentally and assessed thermodynamically by means of CALPHAD approach. Experimental results were obtained by using differential thermal analysis (DTA), scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS), and X-ray powder diffraction (XRD) methods. Examined samples can construct two isothermal sections at 400 and 500 °C as well as three vertical sections of Cu-GeSb, Ge-CuSb, and Sb-CuGe. From equilibrated samples in Cu-rich part of the 500 °C isothermal section, one ternary compound was detected. Based on the present experimental data and available literature data, a thermodynamic description of the ternary Cu-Ge-Sb system has been developed. A reasonable agreement between experimental data and the calculated phase equilibria is obtained.
