Phase Relations and Crystal Structures of Zn and Cd Tungstates

The systems ZnO‐WO3 and CdO‐WO3 show similar phase relations, each having a 1:1 phase. Invariant points established are 1182°C and 56 mol% ZnO, 1090° and 34 mol% ZnO, and 1105° and 31.5 mol% CdO. The crystal structure of CdWO4, determined by the single‐crystal method, was isostructural with ZnWO4, a...

Full description

Saved in:
Bibliographic Details
Published in:Journal of the American Ceramic Society 1980-01, Vol.63 (5-6), p.261-264
Main Authors: MORELL, DOUGLAS J., CANTRELL, JOSEPH S., CHANG, LUKE L. Y.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The systems ZnO‐WO3 and CdO‐WO3 show similar phase relations, each having a 1:1 phase. Invariant points established are 1182°C and 56 mol% ZnO, 1090° and 34 mol% ZnO, and 1105° and 31.5 mol% CdO. The crystal structure of CdWO4, determined by the single‐crystal method, was isostructural with ZnWO4, a wolframite type. Cell dimensions are a=0.5013, b= 0.5090, and c= 0.5866 nm and γ= 91.46° with a space group P2/b and Z = 2. The measured and calculated densities are 7.83 and 7.79 g/cm3, respectively. ZnWO4 and CdWO4 formed a complete series of solid solutions at 900° to 1160°C, above which melting occurred.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1980.tb10715.x