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Decomposition Kinetics of CaYb 2 O 4
Author(s) -
BARRY THOMAS L.,
STUBICAN V. S.,
ROY RUSTUM
Publication year - 1967
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1967.tb15134.x
Subject(s) - kinetics , decomposition , activation energy , chemistry , thermodynamics , chemical process of decomposition , mole fraction , phase (matter) , fraction (chemistry) , analytical chemistry (journal) , materials science , chromatography , organic chemistry , physics , quantum mechanics
The kinetics of decomposition of CaYb 2 O 4 were studied using quantitative analysis by X‐ray diffraction methods and a modified method of “standard binary mixtures.” This type of method was required as total composition remained constant with only the phase assemblage changing. The experimental factors considered in obtaining meaningful results from such a procedure are covered. The linearity of the fraction decomposed or concentration unreacted versus time curves at various temperatures revealed that the decomposition proceeded according to “zero‐order” kinetics. The activation energy for this process was 100 kcal/mole.