Abstract
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.
| Original language | English |
|---|---|
| Article number | 012092 |
| Journal | IOP Conference Series: Materials Science and Engineering |
| Volume | 110 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 23 Feb 2016 |
| Event | 11th International Scientific Conference on Radiation-Thermal Effects and Processes in Inorganic Materials 2015, RTEP 2015 - Tomsk, Russian Federation Duration: 31 Aug 2015 → 10 Sep 2015 |
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ASJC Scopus subject areas
- Materials Science(all)
- Engineering(all)
Cite this
TG study of the Li0.4Fe2.4Zn0.2O4 ferrite synthesis. / Lysenko, E. N.; Nikolaev, Evgeny Vladimirovich; Surzhikov, Anatoly Petrovich.
In: IOP Conference Series: Materials Science and Engineering, Vol. 110, No. 1, 012092, 23.02.2016.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - TG study of the Li0.4Fe2.4Zn0.2O4 ferrite synthesis
AU - Lysenko, E. N.
AU - Nikolaev, Evgeny Vladimirovich
AU - Surzhikov, Anatoly Petrovich
PY - 2016/2/23
Y1 - 2016/2/23
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84971656749&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84971656749&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/110/1/012092
DO - 10.1088/1757-899X/110/1/012092
M3 - Conference article
VL - 110
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
SN - 1757-8981
IS - 1
M1 - 012092
ER -