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Type: Artigo de periódico
Title: Activation Energy And Enthalpy Of Decomposition For The Fe17sm2 Nitride
Author: Cabral F.A.O.
Gama S.
Ribeiro C.A.
Abstract: Decomposition studies of die Fe17Sm2N3 compound were done using a Calvet-type microcalorimeter and a simultaneous gravimetric and differential thermal analyzer (DTA). The results show that the decomposition has onset temperature of 570 °C and proceeds up to 900 °C, and presents only one well determined exothermic thermal event. The calorimetric measurement shows that the enthalpy associated with the decomposition is 69 kJ/mol. The activation energy of the process was also determined using the Kissinger method applied to the DTA signal. It was observed that there was only one activation energy for the decomposition process, with a value of 339 kJ/mol. © 1997 American Institute of Physics.
Rights: aberto
Identifier DOI: 
Date Issue: 1997
Appears in Collections:Unicamp - Artigos e Outros Documentos

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