Abstract
Results of synthesis of lithium-zinc ferrites under high-energy actions including mechanical activation of the mixture of initial reagents in a planetary mill and heating of reaction mixtures upon exposure to accelerated high-energy electron beams are presented. The initial structure of the reaction mixtures corresponds to the stoichiometric spinel formula: Li0.5(1-x)ZnxFe2.5-0.5xO{cyrillic} 4, where kh{cyrillic} = 0.2. To elucidate the effect of radiation on kinetic transformations of the phase composition, analogous investigations are performed with thermal annealing in a furnace. It is established that mechanical activation and radiation-thermal heating of the Li2CO3-ZnO-Fe2O3 mixture of initial reagents increases significantly the reactivity of solid phase systems thereby decreasing strongly the temperature of synthesis and improving the homogeneity of the end product. To synthesize Li0.4Fe2.4Zn0.2O4 lithium-zinc ferrospinels with homogeneous composition, it is suffice to provide a synthesis temperature of 600°S{cyrillic} with holding time of 60 min under complex high-energy action including mechanical activation of the initial mixture of reagents and heating upon exposure to a high-energy beam of electrons.
| Original language | English |
|---|---|
| Pages (from-to) | 681-685 |
| Number of pages | 5 |
| Journal | Russian Physics Journal |
| Volume | 56 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Nov 2013 |
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Keywords
- electron beam
- lithium-zinc ferrite
- mechanical activation
- radiation-thermal heating
- solid-state synthesis
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Investigation of the process of ferrite formation in the Li2CO3-ZnO-Fe2O3 system under high-energy actions. / Surzhikov, Anatoly Petrovich; Lysenko, E. N.; Vlasov, V. A.; Malyshev, A. V.; Nikolaev, Evgeny Vladimirovich.
In: Russian Physics Journal, Vol. 56, No. 6, 01.11.2013, p. 681-685.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Investigation of the process of ferrite formation in the Li2CO3-ZnO-Fe2O3 system under high-energy actions
AU - Surzhikov, Anatoly Petrovich
AU - Lysenko, E. N.
AU - Vlasov, V. A.
AU - Malyshev, A. V.
AU - Nikolaev, Evgeny Vladimirovich
PY - 2013/11/1
Y1 - 2013/11/1
N2 - Results of synthesis of lithium-zinc ferrites under high-energy actions including mechanical activation of the mixture of initial reagents in a planetary mill and heating of reaction mixtures upon exposure to accelerated high-energy electron beams are presented. The initial structure of the reaction mixtures corresponds to the stoichiometric spinel formula: Li0.5(1-x)ZnxFe2.5-0.5xO{cyrillic} 4, where kh{cyrillic} = 0.2. To elucidate the effect of radiation on kinetic transformations of the phase composition, analogous investigations are performed with thermal annealing in a furnace. It is established that mechanical activation and radiation-thermal heating of the Li2CO3-ZnO-Fe2O3 mixture of initial reagents increases significantly the reactivity of solid phase systems thereby decreasing strongly the temperature of synthesis and improving the homogeneity of the end product. To synthesize Li0.4Fe2.4Zn0.2O4 lithium-zinc ferrospinels with homogeneous composition, it is suffice to provide a synthesis temperature of 600°S{cyrillic} with holding time of 60 min under complex high-energy action including mechanical activation of the initial mixture of reagents and heating upon exposure to a high-energy beam of electrons.
AB - Results of synthesis of lithium-zinc ferrites under high-energy actions including mechanical activation of the mixture of initial reagents in a planetary mill and heating of reaction mixtures upon exposure to accelerated high-energy electron beams are presented. The initial structure of the reaction mixtures corresponds to the stoichiometric spinel formula: Li0.5(1-x)ZnxFe2.5-0.5xO{cyrillic} 4, where kh{cyrillic} = 0.2. To elucidate the effect of radiation on kinetic transformations of the phase composition, analogous investigations are performed with thermal annealing in a furnace. It is established that mechanical activation and radiation-thermal heating of the Li2CO3-ZnO-Fe2O3 mixture of initial reagents increases significantly the reactivity of solid phase systems thereby decreasing strongly the temperature of synthesis and improving the homogeneity of the end product. To synthesize Li0.4Fe2.4Zn0.2O4 lithium-zinc ferrospinels with homogeneous composition, it is suffice to provide a synthesis temperature of 600°S{cyrillic} with holding time of 60 min under complex high-energy action including mechanical activation of the initial mixture of reagents and heating upon exposure to a high-energy beam of electrons.
KW - electron beam
KW - lithium-zinc ferrite
KW - mechanical activation
KW - radiation-thermal heating
KW - solid-state synthesis
UR - http://www.scopus.com/inward/record.url?scp=84892178946&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84892178946&partnerID=8YFLogxK
U2 - 10.1007/s11182-013-0085-6
DO - 10.1007/s11182-013-0085-6
M3 - Article
AN - SCOPUS:84892178946
VL - 56
SP - 681
EP - 685
JO - Russian Physics Journal
JF - Russian Physics Journal
SN - 1064-8887
IS - 6
ER -