A revision of the central part of the Cr-Ge phase diagram

作者：Jandl Isabella; Richter Klaus W^*

来源：Journal of Alloys and Compounds, 2010, 500(1): L6-L8.

DOI：10.1016/j.jallcom.2010.03.200

• Cr-Ge system
• Phase diagram
• Cr5Ge3

The central part of the Cr-Ge phase diagram was re-investigated using powder-X-ray diffraction (XRD), differential thermal analysis (DTA) and chemical vapour transport (CVT). It was found that the phase Cr5Ge3 (Si3W5-type structure) does not show a polymorphic transformation as reported previously, but rather undergoes a eutectoidic decomposition reaction Cr5Ge3=Cr3Ge+Cr11Ge8 at T=996 degrees C. A revised version of the corresponding region of the phase diagram is given.

• 出版日期2010-6-18