Precipitation of iron zirconate from Zr4+-oversaturated Fe2O3-x (I)

Authors
Wu, ML Gan, D Shen, P
Citation
Ml. Wu et al., Precipitation of iron zirconate from Zr4+-oversaturated Fe2O3-x (I), MAT SCI E A, 297(1-2), 2001, pp. 119-123
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN journal
09215093 → ACNP
Volume
297
Issue
1-2
Year of publication
2001
Pages
119 - 123
Database
ISI
SICI code
0921-5093(20010115)297:1-2<119:POIZFZ>2.0.ZU;2-U
Abstract
The ZrO2 and alpha -Fe2O3 powders were sintered at 1200 degreesC and then a ged at 850 degreesC for 4-600 h in air to study the precipitation of iron z irconate from alpha -Fe2O3 oversaturated with Zr4+ by analytical electron m icroscopy. The Guinier-Preston (G.P.) zone formed within 100 h and then dis k-like precipitate variants of iron zirconate (Fe/Zr similar to 1:1 in atom ic ratio) were found to nucleate on the habit plane {10 (1) over bar4} of t he hematite matrix after 300 h. The iron zirconate probably possesses monoc linic crystallographic symmetry according to electron diffraction and the s hape characteristics. (C) 2001 Elsevier Science B.V. All rights reserved.