Química Nova | |
Cinética não-isotérmica na análise térmica de sólidos | |
André Silva Pimentel1  Graciela Arbilla1  | |
[1] ,Universidade Federal do Rio de Janeiro Instituto de Química Departamento de Físico-QuímicaRio de Janeiro RJ | |
关键词: thermal analysis; solids; non-isothermal kinetics; | |
DOI : 10.1590/S0100-40421998000300005 | |
来源: SciELO | |
【 摘 要 】
In this work, a computer program called Thermal Kinetics was implemented to simulate thermal analysis experiments by numerical integration of the kinetics equations. The computer program was tested in two different examples: non-isothermal transformation of a Cu-Al alloy and non-isothermal decomposition of calcium oxalate monohydrated. In spite of the rather crude approximations of the model, the simulated profiles are very similar to the experimental curves. Both, the dalpha /dt and the dalpha /dT profiles reproduce the experimental transition temperatures with an error smaller than 25%.
【 授权许可】
CC BY-NC
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【 预 览 】
Files | Size | Format | View |
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RO202103040060499ZK.pdf | 274KB | download |