I start with amorphous precursor of SrO-Al2O3 and upon heating to the temperature of interest, a number of crystalline phases are formed in addition to the phase that I am interested in. Using thermal analysis, one can obtain the activation energy of crystallization by using Kissinger equation. However, it gives the total activation energy for crystallization of all the phases. How is it possible to calculate it for only one phase but not for all the phases? In other words, how can I separate the contribution of crystallization of one phase to the total activation energy when a number of crystalline phases are present?
Thanks,
Hamid
Hello dear, it is dificult because this mean that you have to separate all your phases.
Hi, I don"t know your system, but it is just a suggestion: you can try to make different heating speeds (say lower ones) in thermal analysis, trying to separate and identify the changes. But it is just a suggestion.
Dear Silas,
Thanks for your message. I think using very small intervals in heating rates might be helpful.
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