Decomposition Kinetics of CaYb2O4 |
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| Authors: | THOMAS L. BARRY,V. S. STUBICAN,RUSTUM ROY&dagger |
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| Affiliation: | Materials Research Laboratory and Department of Ceramic Science, The Pennsylvania State University, University Park, Pennsylvania 16802 |
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| Abstract: | The kinetics of decomposition of CaYb2O4 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. |
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