Soft chemical routes to the synthesis of extended solid solutions of wurtzite ZnO-MO (M = Mg, Co, Ni)

Authors
Jayaram, V Rani, BS
Citation
V. Jayaram et Bs. Rani, Soft chemical routes to the synthesis of extended solid solutions of wurtzite ZnO-MO (M = Mg, Co, Ni), MAT SCI E A, 304, 2001, pp. 800-804
Citations number
24
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
304
Year of publication
2001
Pages
800 - 804
Database
ISI
SICI code
0921-5093(20010531)304:<800:SCRTTS>2.0.ZU;2-A
Abstract
Spray pyrolysis and gel decomposition have been used to generate extended s olid solutions of MO (M = Mg, Co and Ni) in the wurtzite modification of Zn O through kinetic limitations. Both routes yield a significantly greater ex tent of solution of CoO as compared to MgO and NiO. Published lattice stabi lities for the wurtzite modifications of MO and the rock-salt form of ZnO a re used to develop free energy-composition curves to relate the ease of sol ution to the driving force for partitioning. Reasons for the absence of sin gle-phase reck-salt-based solid solutions are discussed. (C) 2001 Elsevier Science B.V. All rights reserved.