Subsolidus phase relationships in the system ZnO-Li2O-WO3

The subsolidus phase relationships of the system ZnO-Li2O-WO3 have been investigated by X-ray diffraction (XRD) analyses. There are one ternary compound, five binary compounds and eight 3-phase regions in this system. The new ternary compound Li2Zn2W2O9 was found by the powder diffraction pattern. The corresponding crystal structure of this compound was refined by Rietveld profile fitting method. It belongs to a trigonal system with space group P (3) over bar cl and lattice constants are a = 5.1438(2) angstrom, c= 14.1052(3) angstrom, and its thermal property was studied. (C) 2007 Elsevier B.V. All rights reserved.