Reaction kinetic, magnetic and microwave absorption studies of SrFe11.2Ni 0.8O19 hexaferrite nanoparticles

Tyagi, Sachin; Agarwala, R. C.; Agarwala, Vijaya

doi:10.1007/s10854-010-0265-x

Cited by 19 publications

(6 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8,9 Heat treatment makes the process fast, and hexaferrite particles crystallize completely as hexagonal pyramidal or plate-like shapes after cooling in the furnace. 10,11 Similar morphology was obtained by Tyagi et ) nanostructure composite particles by co-precipitation. Appropriate stoichiometric amounts of strontium, ferric, and zinc chlorides were completely dissolved in ultrapure water and brownish-colored ferrite particles were precipitated from the mixtures by gradual addition of sodium hydroxide (NaOH) solution (pH 12) at room temperature.…”

Section: Introductionsupporting

confidence: 70%

Investigating the Exchange-Coupling Interaction in Nanostructure Composite Particles of SrFe12O19 and ZnFe2O4

Mehdipour

Shokrollahi

Bahadoran

2014

Journal of Elec Materi

View full text Add to dashboard Cite

nanostructure composite particles were synthesized by co-precipitation of chloride salts, in different stoichiometric ratios, by addition of sodium hydroxide solution. The resulting precursors were heat treated at temperatures in the range 800-1200°C for 4 h. Exchange interactions of the nanostructure composite particles were studied by use of exchange-coupling theory and plots of magnetic hysteresis. On the basis of exchange-coupling theory, the exchange interaction can be improved by increasing the soft phase content within the hard matrix. As temperature and soft phase ratio increase, the exchange interaction increases because of exchange length enhancement. The modified Brown's equation was also used to analyze the effects of exchange coupling on coercivity.

show abstract

Section: Introductionsupporting

confidence: 70%

Investigating the Exchange-Coupling Interaction in Nanostructure Composite Particles of SrFe12O19 and ZnFe2O4

Mehdipour

Shokrollahi

Bahadoran

2014

Journal of Elec Materi

View full text Add to dashboard Cite

show abstract

“…The exothermic peak in DTA at 336 C corresponds to the combustion of nitrate-citrate content at a rate of 0.28 mg/min. The existence of endothermic peaks in all the cases near 1200 C phase by the means of endothermic reaction in the system [13,14]. The DTA-curves in Fig.…”

Section: Thermal Analysismentioning

confidence: 83%

Effects of La3+–Nd3+ ions and pre-calcination on the growth of hexaferrite nanoparticles prepared by gel to crystallization technique: Non-isothermal crystallization kinetics analysis

Thakur¹,

Barman

Singh

2015

Materials Chemistry and Physics

View full text Add to dashboard Cite

“…Traditional soft magnetic ferrites (Ni,Co,Zn ferrite, etc.) have high saturation magnetization [1][2][3][4][5], and the hard magnet also have high coercivity, high remanence [6][7][8][9][10]. Magnetic nanocomposites with high remanence and energy bases on the exchange coupling interaction between the magnetically hard and soft nanoparticles [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

The Magnetic Property of Core/Shell Structural MFe₂O₄/La_0.7Sr_0.3MnO₃(M=Ni,Co,Zn) Nanocomposites

Feng

Wang

Liu

et al. 2015

Integrated Ferroelectrics

View full text Add to dashboard Cite

The core/shell structural MFe 2 O 4 /La 0.7 Sr 0.3 MnO 3 (M=Ni,Co,Zn) magnetic nanocomposites particles were prepared by a polyacrylamide Sol-Gel method, analytically pure nitrate as the main materials. The XRD, SEM, TEM, EDS and VSM were used to analyze the chemical component, structure, morphology and magnetic property of the nanocomposites. The result show that the pH value of the solution was adjusted to 3, the mass ratio of core/shellwas 1:2, the dry gel was heated at 500 • C for 10h, and then 600 • C for 6h can obtain core/shell structural nanocomposites with particle size uniform and scattered homogeneously. We find out the composition and structure of nanocomposites have great influence on their magnetic property.

show abstract

Reaction kinetic, magnetic and microwave absorption studies of SrFe11.2Ni 0.8O19 hexaferrite nanoparticles

Cited by 19 publications

References 24 publications

Investigating the Exchange-Coupling Interaction in Nanostructure Composite Particles of SrFe12O19 and ZnFe2O4

Investigating the Exchange-Coupling Interaction in Nanostructure Composite Particles of SrFe12O19 and ZnFe2O4

Effects of La3+–Nd3+ ions and pre-calcination on the growth of hexaferrite nanoparticles prepared by gel to crystallization technique: Non-isothermal crystallization kinetics analysis

The Magnetic Property of Core/Shell Structural MFe₂O₄/La_0.7Sr_0.3MnO₃(M=Ni,Co,Zn) Nanocomposites

Contact Info

Product

Resources

About

Reaction kinetic, magnetic and microwave absorption studies of SrFe11.2Ni 0.8O19 hexaferrite nanoparticles

Cited by 19 publications

References 24 publications

Investigating the Exchange-Coupling Interaction in Nanostructure Composite Particles of SrFe12O19 and ZnFe2O4

Investigating the Exchange-Coupling Interaction in Nanostructure Composite Particles of SrFe12O19 and ZnFe2O4

Effects of La3+–Nd3+ ions and pre-calcination on the growth of hexaferrite nanoparticles prepared by gel to crystallization technique: Non-isothermal crystallization kinetics analysis

The Magnetic Property of Core/Shell Structural MFe2O4/La0.7Sr0.3MnO3(M=Ni,Co,Zn) Nanocomposites

Contact Info

Product

Resources

About

The Magnetic Property of Core/Shell Structural MFe₂O₄/La_0.7Sr_0.3MnO₃(M=Ni,Co,Zn) Nanocomposites