INTERNAL SOLID-STATE REACTION - FORMATION OF PEROVSKITE IN NIO-MATRIX

Authors
SCHMALZRIED H FRICK T
Citation
H. Schmalzried et T. Frick, INTERNAL SOLID-STATE REACTION - FORMATION OF PEROVSKITE IN NIO-MATRIX, Berichte der Bunsengesellschaft fur Physikalische Chemie, 99(7), 1995, pp. 914-919
Citations number
20
Categorie Soggetti
Chemistry Physical
Journal title
Berichte der Bunsengesellschaft fur Physikalische Chemie
ISSN journal
00059021 → ACNP
Volume
99
Issue
7
Year of publication
1995
Pages
914 - 919
Database
ISI
SICI code
0005-9021(1995)99:7<914:ISR-FO>2.0.ZU;2-P
Abstract
Isothermal internal reactions of the type A + B = AB taking place in a crystal matrix C are studied experimentally. The matrix crystal C is NiO, A = CaO, B = TiO2 (NiTiO3) and the reaction product AB is the per ovskite CaTiO3. Both the morphology of the reaction product and the ki netics of its formation have been investigated and are discussed in th e light of a previous theoretical study. In addition, chemical diffusi vities of Ca- and Ti-ions in the NiO-matrix are determined.