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Chemischer Transport ternärer Oxide in den Systemen Ca/Mo/O und Sr/Mo/O
Author(s) -
Steiner Udo,
Reichelt Werner
Publication year - 2006
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200500526
Subject(s) - ternary operation , oxide , concentration gradient , chemistry , phase (matter) , analytical chemistry (journal) , chemical composition , materials science , mineralogy , inorganic chemistry , nuclear chemistry , metallurgy , environmental chemistry , organic chemistry , computer science , programming language
Chemical Vapour Transport of Ternary Oxides in the Systems Ca/Mo/O and Sr/Mo/O The chemical vapour transport behaviour of ternary phases in the Ca/Mo/O and Sr/Mo/O systems has been investigated using Cl 2 as transport agent in a temperature gradient 1423 to 1323 K. MMoO 4 (M= Ca, Sr) migrate in the above‐mentioned temperature gradient with rates of 0.1 to 0.2 mg/h. Starting from three phase mixtures crystals of the compounds MMo 5 O 8 have been grown (migration rates: M = Ca 0.1 mg/h, M = Sr 0.01 mg/h). The observed transport behaviour is compared with predictions given by thermo dynamical model calculations and the influences of source composition and the moisture contents are described in detail.