Phase transition behavior for ZrW2−xMoxO8 compositions at elevated temperatures

A systematical study on cubic ZrW2−xMoxO8 (x=0.73, 0.53, 0.33, 0.11) solid solutions reveals that their temperature-dependent phase transition behaviors are related to the Mo fraction x. A phase diagram of cubic ZrW2−xMoxO8 solid solutions has been drawn over a wide temperature range (298–1473 K) on the basis of the temperature-dependent phase transition behaviors observed.

Graphical abstractThe phase behavior–temperature relationship of ZrW2−xMoxO8 system. The phase denoted with symbol: (□): cubic; (▵): trigonal; (×): oxides; (◊): cubic and trigonal; (): cubic and oxides; (): cubic, trigonal and oxides. The temperature threshold of phase transition: (—); metastable cubic transition; (- - - - - -): MoO3 sublimation; ()ː reaction to form W-rich ZrW2−xMoxO8.Figure optionsDownload full-size imageDownload as PowerPoint slideFigure optionsDownload full-size imageDownload as PowerPoint slideFigure optionsDownload full-size imageDownload as PowerPoint slideFigure optionsDownload full-size imageDownload as PowerPoint slide