Influence of mechanical activation of initial reagents on synthesis of lithium ferrite

Abstract

The influence of mechanical activation of the Li ₂CO ₃-Fe ₂O ₃ initial reagents on ferrite phase formation in lithium ferrite LiFe ₅O ₈ is investigated. Methods of x-ray powder diffraction (XRD) and thermomagnetometry with differential scanning calorimetry (TG(M)/DSC) are used to compare the efficiency of nonisothermal synthesis at identical temperatures and burning times of the initial and mechanically activated reagent mixtures. It is demonstrated that preliminary mechanical activation of the initial Li ₂CO ₃-Fe ₂O ₃ reagent mixture considerably increases the reactivity of the solid phase system, thereby allowing the temperature of the thermal synthesis of lithium ferrite LiFe ₅O ₈ to be decreased significantly.

Original language	English
Pages (from-to)	672-677
Number of pages	6
Journal	Russian Physics Journal
Volume	55
Issue number	6
DOIs	https://doi.org/10.1007/s11182-012-9865-7
Publication status	Published - 1 Nov 2012

Keywords

LiFe O
lithium ferrite
mechanical activation
solid phase synthesis
TG(M)/DSC
XRP

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1007/s11182-012-9865-7

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@article{1c92aad0a9c14a819f6072edeca143ac,

title = "Influence of mechanical activation of initial reagents on synthesis of lithium ferrite",

abstract = "The influence of mechanical activation of the Li 2CO 3-Fe 2O 3 initial reagents on ferrite phase formation in lithium ferrite LiFe 5O 8 is investigated. Methods of x-ray powder diffraction (XRD) and thermomagnetometry with differential scanning calorimetry (TG(M)/DSC) are used to compare the efficiency of nonisothermal synthesis at identical temperatures and burning times of the initial and mechanically activated reagent mixtures. It is demonstrated that preliminary mechanical activation of the initial Li 2CO 3-Fe 2O 3 reagent mixture considerably increases the reactivity of the solid phase system, thereby allowing the temperature of the thermal synthesis of lithium ferrite LiFe 5O 8 to be decreased significantly.",

keywords = "LiFe O, lithium ferrite, mechanical activation, solid phase synthesis, TG(M)/DSC, XRP",

author = "Surzhikov, {Anatoly Petrovich} and Lysenko, {E. N.} and Malyshev, {A. V.} and Pritulov, {A. M.} and Kazakovskaya, {O. G.}",

year = "2012",

month = nov,

day = "1",

doi = "10.1007/s11182-012-9865-7",

language = "English",

volume = "55",

pages = "672--677",

journal = "Russian Physics Journal",

issn = "1064-8887",

publisher = "Consultants Bureau",

number = "6",

}

TY - JOUR

T1 - Influence of mechanical activation of initial reagents on synthesis of lithium ferrite

AU - Surzhikov, Anatoly Petrovich

AU - Lysenko, E. N.

AU - Malyshev, A. V.

AU - Pritulov, A. M.

AU - Kazakovskaya, O. G.

PY - 2012/11/1

Y1 - 2012/11/1

N2 - The influence of mechanical activation of the Li 2CO 3-Fe 2O 3 initial reagents on ferrite phase formation in lithium ferrite LiFe 5O 8 is investigated. Methods of x-ray powder diffraction (XRD) and thermomagnetometry with differential scanning calorimetry (TG(M)/DSC) are used to compare the efficiency of nonisothermal synthesis at identical temperatures and burning times of the initial and mechanically activated reagent mixtures. It is demonstrated that preliminary mechanical activation of the initial Li 2CO 3-Fe 2O 3 reagent mixture considerably increases the reactivity of the solid phase system, thereby allowing the temperature of the thermal synthesis of lithium ferrite LiFe 5O 8 to be decreased significantly.

AB - The influence of mechanical activation of the Li 2CO 3-Fe 2O 3 initial reagents on ferrite phase formation in lithium ferrite LiFe 5O 8 is investigated. Methods of x-ray powder diffraction (XRD) and thermomagnetometry with differential scanning calorimetry (TG(M)/DSC) are used to compare the efficiency of nonisothermal synthesis at identical temperatures and burning times of the initial and mechanically activated reagent mixtures. It is demonstrated that preliminary mechanical activation of the initial Li 2CO 3-Fe 2O 3 reagent mixture considerably increases the reactivity of the solid phase system, thereby allowing the temperature of the thermal synthesis of lithium ferrite LiFe 5O 8 to be decreased significantly.

KW - LiFe O

KW - lithium ferrite

KW - mechanical activation

KW - solid phase synthesis

KW - TG(M)/DSC

KW - XRP

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U2 - 10.1007/s11182-012-9865-7

DO - 10.1007/s11182-012-9865-7

M3 - Article

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VL - 55

SP - 672

EP - 677

JO - Russian Physics Journal

JF - Russian Physics Journal

SN - 1064-8887

IS - 6