skip to main content
Idioma:

TG study of the Li0.4Fe2.4Zn0.2O4 ferrite synthesis

Lysenko, E N ; Nikolaev, E V ; Surzhikov, A P

IOP conference series. Materials Science and Engineering, 2016-01, Vol.110 (1) [Periódico revisado por pares]

Bristol: IOP Publishing

Texto completo disponível

Citações Citado por
  • Título:
    TG study of the Li0.4Fe2.4Zn0.2O4 ferrite synthesis
  • Autor: Lysenko, E N ; Nikolaev, E V ; Surzhikov, A P
  • Assuntos: Chemical synthesis ; Heating ; Lithium ; Mathematical models ; Multivariate analysis ; Parameters ; Regression analysis ; Thermogravimetry ; Three dimensional models ; Zinc ; Zinc ferrites
  • É parte de: IOP conference series. Materials Science and Engineering, 2016-01, Vol.110 (1)
  • Descrição: In this paper, the kinetic analysis of Li-Zn ferrite synthesis was studied using thermogravimetry (TG) method through the simultaneous application of non-linear regression to several measurements run at different heating rates (multivariate non-linear regression). Using TG-curves obtained for the four heating rates and Netzsch Thermokinetics software package, the kinetic models with minimal adjustable parameters were selected to quantitatively describe the reaction of Li-Zn ferrite synthesis. It was shown that the experimental TG-curves clearly suggest a two-step process for the ferrite synthesis and therefore a model-fitting kinetic analysis based on multivariate non-linear regressions was conducted. The complex reaction was described by a two-step reaction scheme consisting of sequential reaction steps. It is established that the best results were obtained using the Yander three-dimensional diffusion model at the first stage and Ginstling-Bronstein model at the second step. The kinetic parameters for lithium-zinc ferrite synthesis reaction were found and discussed.
  • Editor: Bristol: IOP Publishing
  • Idioma: Inglês
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.