Nanocrystalline Ferrites Research Articles

Study of structural phase transformation and hysteresis behavior of inverse-spinel α-ferrite nanoparticles synthesized by co-precipitation method

Abstract Substitution of cobalt (Co2+) ions in cobalt ferrite (CoFe2O4) with copper (Cu2+) and aluminum (Al3+) ions allows variations in their electric and magnetic properties which can be optimized for specific applications. In this article, synthesis of inverse-spinel Co1−xCuxFe2−xAlxO4 (0.0 ≤ x ≤ 0.8) nanoparticles by substituting Cu2+ and Al3+ ions in CoFe2O4 via co-precipitation method is reported. By controlling copper and aluminum (Cu-Al) substituent ratio, the magnetic moment and coercivity of synthesized cobalt ferrite nanoparticles is optimized. The role of substituents on the structure, particle size, morphology, and magnetic properties of nano-crystalline ferrite is investigated. The Co1−xCuxFe2−xAlxO4 (0.0 ≤ x≤ 0.8) nanoparticles with crystallite size in the range of 23.1–26.5 nm are observed, 26.5 nm for x = 0.0–23.1 nm for x = 0.8. The inverse-spinel structure of synthesized Co1−xCuxFe2−xAlxO4 (0.0 ≤ x ≤ 0.8) nano-particles is confirmed by characteristic vibrational bands at tetrahedral and octahedral sites using Fourier transform infrared spectroscopy. A decreases in coercive field and magnetic moment is observed as Cu-Al contents are increased (x = 0.0–0.8). The positive anisotropy of synthesized particles Co1−xCuxFe2−xAlxO4 (0.0 ≤ x ≤ 0.8) is obtained in the range 1.96 × 105 J/m3 for x = 0.0 to 0.29 × 105 J/m3 for x = 0.8.

Structural and electrical properties of Cu-doped Ni–Zn nanocrystalline ferrites for MLCI applications

Polycrystalline Cu substituted Ni–Zn ferrites with chemical composition Ni[Formula: see text]Zn[Formula: see text]-Cu[Formula: see text]Fe2O4 (x = 0.00 to 0.25 in steps of 0.05) have been prepared by citrate gel autocombustion method. The samples for electrical properties have been sintered at 900[Formula: see text]C for 4 h. The X-ray diffraction patterns of all samples indicate the formation of single phase spinel cubic structure. The value of lattice parameter is decreases with increasing Cu concentration. The estimated cation distribution can be derived from X-ray diffraction intensity calculations and IR spectra. The tetrahedral and octahedral bond lengths, bond angles, cation–cation and cation–anion distances were calculated by using experimental lattice parameter and oxygen positional parameters. It is observed that Cu ions are distributed in octahedral site and subsequently Ni and Fe ions in tetrahedral site. The grain size of all samples has been calculated by Scanning Electron Microscopy (SEM) images. The variations in DC electrical resistivity and dielectric constant have been explained on the basis of proposed cation distribution.

Nanocrystalline ferrite (MFe2O4, M=Ni, Cu, Mn and Sr) photocatalysts synthesized by homogeneous Co-precipitation technique

Pertaining to the diverse environment, application of ferrites (MFe2O4=Ni, Cu, Mn and Sr) in scientific and industrial categories, it is vital to optimize its properties and hence a facile homogeneous co-precipitation route was used to formulate MFe2O4 nanoparticles in order to study its morphological, optical and magnetic perspective. The enviable phase pure spinel nanoparticles were deliberated by X-Ray Diffractometer (XRD), Fourier Transform Infrared (FTIR), Laser Raman, Transmission Electron Microscopy (TEM), Brunauer–Emmett–Teller adsorption-desorption isotherm (BET) and Vibrating Sample Magnetometer. XRD depicts the phase formation, crystallite size, lattice parameter and the speck size was calculated by Scherrer formula. The FTIR spectrum reveals the absorption bands between 4000–400cm−1 whereas the Raman spectrum is extended for the photon modes of asymmetric and symmetric stretching vibrations. The morphological and particle distribution was studied using TEM. Surface analysis was performed using the Isothermal BET technique for the as-synthesized nanoparticles. UV-visible analysis reveals the significance of optical property in application of Photo-Fenton activity. Using Kubelka-Munk plot, bandgap was found for as-synthesized samples. The synthesized MFe2O4 photo catalyst was studied for its significance in photo-Fenton activity of Methylene blue (MB) dye degradation. The synthesized photo catalyst was reused for 5 cycles and it was evident that it had no significant loss, which makes it an adroit candidate in industrial distillation.

Evaluation and comparision of dc resistivity of NiZrxCoxFe2−2xO4, Ni0.5Sn0.5CoxMnxFe2−2xO4, Mg1−xCaxNiyFe2−yO4 and Mg1−xNixCoyFe2−yO4 nanocrytalline materials

Four series nanocrystalline ferrites with nominal composition, NiZrxCoxFe2−2xO4 (x = 0.0, 0.2, 0.4, 0.6, 0.8) Ni0.5Sn0.5CoxMnxFe2−2xO4 (x = 0.0, 0.2, 0.4, 0.6, 0.8), Mg1−xCaxNiyFe2−yO4 (x = 0.0, 0.2, 0.4, 0.6, 0.8; y = 0, 04, 0.8, 1.2, 1.6) and Mg1−xNixCoyFe2−yO4 (x,y = 0.0, 0.2, 0.4, 0.6, 0.8) have been fabricated using the microemulsion synthesis route. The synthesized materials are investigated for dc electrical resistivity measurements. The variation of dc electrical resistivity of these materials has been explainedon the basis of hopping mechanism of both holes and electrons.

Structural, spectral, thermal and dielectric properties of Nd-Ni co-doped Sr-Ba-Cu hexagonal ferrites synthesized via sol-gel auto-combustion route

Neodymium-nickel (Nd-Ni) substituted nanocrystalline ferrites of the following chemical formula SrBaCu2−xNixNdyFe12−yO22 (x = 0, 0.2, 0.4, 0.6, 0.8, 1.0, y = 0.0, 0.02, 0.04, 0.06, 0.08, 0.1) were synthesized by the sol-gel auto-combustion route. The synthesized samples were characterized by X-ray powder diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), fourier transform infrared spectroscopy (FTIR) and dielectric measurement techniques. The properties related to structure of the prepared samples were examined in detail in addition to thorough analysis of their dielectric properties. Microstructural studies exposed the formation of spherical, elongated grains and all the prepared samples showed single Y-type hexagonal phase and lattice parameters have been calculated. FTIR technique was employed to explore the local symmetry behavior in the synthesized crystalline materials and to probe the process of ordering in nano-crystalline ferrites. With increase in frequency and Nd-Ni contents, dielectric constant and dielectric loss of the samples was found to decrease. The complex impedance formalism confirms the role of grain-interior phenomenon to the dielectric properties. Resistive and capacitive characteristics of materials were exhibited by Cole-Cole plots having single semicircle, caused by contribution of grain boundaries in prepared Y-type nano materials.

Structural and electromagnetic evaluations of YIG rare earth doped (Gd, Pr, Ho,Yb) nanoferrites for high frequency applications

Multiple rare earth metal cations (Gd, Yb, Ho and Pr) were doped in yttrium iron garnet (YIG) nanocrystalline ferrites. Following five samples i.e. YIG (Y3Fe5O12), Gd doped YIG (Y2.8Gd0.2Fe5O12), Pr doped YIG (Y2.8Pr0.2Fe5O12), Ho doped YIG (Y2.8Ho0.2Fe5O12) and Yb doped YIG (Y2.8Yb0.2Fe5O12) were prepared using sol-gel auto-combustion synthesis route. The samples were characterized via XRD, FTIR, SEM and VSM whereas VNA was also used to evaluate these samples for high frequency applications. XRD analysis confirms the peaks of garnet ferrites which show cubic phase structure for all YIG doped samples. The lattice constant in all the substituted garnet nanoferrites initially increased and then consequently decreased as the doping increased except for Pr-substituted YIG nanoferrites. This is due to the greater ionic radii of Pr as compared to other doped YIG nanoferrites. FTIR was used to find out the garnet phase in all the substituted YIG nanoferrites. The morphological features of the garnet nanoferrites were observed using the SEM images. High frequency measurements such as permittivity, permeability, dielectric losses, ac conductivity, electric modulus and Q factor of YIG and doped YIG nanoferrites were measured using VNA. Saturation magnetization, remanence, coercivity, squareness ratio, Bohr magneton and magneto crystalline anisotropy were measured from the magnetic hysteresis loops recorded by VSM. Pr-doped YIG show better dielectric and magnetic properties with lower losses at higher frequency suggest the use of these garnet nanoferrites for microwave high frequency devices and applications.

Systematic study of Ce3+ on the structural and magnetic properties of Cu nanosized ferrites for potential applications

Ce3+ substituted Cu-spinel nanoferrites CuCexFe2−xO4 (x = 0.00, 0.02, 0.04, 0.06, 0.08 and 0.10) were synthesized via sol–gel self-combustion hybrid route. Single phase spinel ferrite of Cu nanoferrites were examined using X-ray diffraction (XRD) analysis whereas the multiphase structure was observed as Ce contents increased from x = 0.06. Field emission scanning electron microscopy (FESEM), Thermogravimetric and differential thermal analysis (TGA and DTA) and Fourier transform infrared spectroscopy (FTIR) were used to find out the morphology phase and metal stretching vibrations of Ce3+ substituted nanocrystalline ferrites. The crystallite size was increased and found in the range of 25–91 nm. The agglomerations in Cu ferrite samples increase as the Ce3+ concentration increases. The magnetic properties such as remanence, saturation magnetization, coercivity, Bohr magneton and magnetocrystalline anisotropy constant (K) were determined using M−H loops recorded from a vibrating sample magnetometer (VSM). Saturation magnetization, remanence and coercivity are increased as the Ce3+ contents increase in Cu nanocrystalline samples. Moreover, law of approach to saturation (LoA) was used to calculate the maximum value of saturation for Ce-doped Cu nanoferrites. The soft magnetic behaviour of the Cu nanoferrite is observed as compared to the samples substituted with the increased Ce contents in Cu nanocrystalline ferrite. Bohr magneton and magnetocrystalline anisotropy are found to increase with the substitution of rare earth Ce3+ contents in Cu spinel nanocrystalline ferrite. Ce-doped Cu nanocrystalline ferrites with excellent properties may be suitable for potential applications in sensing, security, switching, core, multilayer chip inductor, biomedical and microwave absorption applications.

Crack path identification in a nanostructured pearlitic steel using atom probe tomography

Severely plastically deformed pearlitic steels often possess poor crack-growth resistance along the deformation-induced elongated nanolamellar microstructure. However, it is unknown if the crack propagates in the nanocrystalline ferrite or along the ferrite-cementite interface. Here, a pearlitic steel subjected to high pressure torsion exhibiting a fracture toughness of only ~4MPa·m1/2 along the elongated structure was selected to address this fundamental question. For the first time 3-dimensional atom probe tomography was employed to unravel the local atomistic fractography. We present clear evidence that the low fracture toughness is controlled by crack propagation along the interface between the nanocrystalline carbon-rich and ferritic phase.

New LiNi0.5PrxFe2−xO4 nanocrystallites: Synthesis via low cost route for fabrication of smart advanced technological devices

Abstract Praseodymium substituted nano-crystalline Li-Ni spinel ferrites with different Pr3+ contents were synthesized by micro-emulsion method. X-ray diffraction (XRD), scanning electron spectroscopy (SEM) and vibrating sample magnetometery (VSM) techniques were employed to study the impact of substitution of the Pr3+ on the structure, surface morphology and magnetic parameters. XRD confirmed the formation of the single phase spinel ferrites of all compositions of LiNi0.5PrxFe2−xO4 nanocrystallites. The crystallite size determined from XRD data by Scherrer formula was calculated in range from 40 nm to 70 nm. However the nanoparticles size estimated by SEM was found 35–115 nm. The room temperature VSM measurements were carried out in the applied field range from “−10,000 Oe” to “10000” Oe. Saturation magnetization (MS) (41 emu/g) and coercivity (HC) values (156.9 Oe) of LiNi0.5Fe2O4 were improved by the addition of rare earth Pr3+ cations. The value of Hc is low, which is a strong indication of soft ferrites. The synthesized LiNi0.5PrxFe2−xO4 ferrites may be utilized for low core losses on transformers.

Synthesis of non-stoichiometric zinc ferrite for electromagnetic wave absorber applications

Zn doped Fe3O4 nanocrystalline powders are prepared by the Microwave Hydrothermal (M-H) method. The synthesized ferrite powders are characterized using Powder X-ray diffraction (XRD), Transmission Electron Microscopy (TEM), and Vibrating Sample Magnetometry (VSM). Nanocrystalline ferrites of ∼10–20nm size are synthesized at a low temperature of 160⁰C after a treatment time of 60min. Magnetization studies show the ferrimagnetic nature of the synthesized samples at room temperature. The electromagnetic properties such as complex permittivity and complex permeability spectra are recorded in the frequency range from 1MHz to 1.8GHz. The calculated reflection loss indicated that these ferrites show a potential application as multiband electromagnetic wave absorbers.

Improved electrical, magnetic and dielectric properties of polypyrol (PPy) substituted spinel ferrite composites

CoTb0.03Fe1.97O4 ferrite and poypyrrole (PPy) polymer nano composites were prepared by mixing the nano crystalline ferrite with poypyrrole (PPy) by following the solid state reaction synthesis route. The XRD patterns of CoTb0.03Fe1.97O4 spinel ferrite powders and polymer (PPy) exhibited single phase spinel structure. The amorphous nature of PPy was evidenced by the broad peaks of XRD patterns. The surface morphology unfolded heterogeneous distribution in composites and ferrite. The grains in ferrite were spherical in shape with clear boundaries. The morphology was appreciably altered by the inclusion of ferrite contents. The higher activation energy and resistivity aroused due to blocking of conduction mechanism owing to nanoparticles embedded in the PPy matrix. A downfall in the dielectric loss of the composites is observed as the frequency of the applied field is increased. The incorporation of ferrite contents optimized the magnetic parameters of the composites. The enhanced coercivity (Hc) of these nanocomposites might be beneficial for memory devices.

Atomistic Insights on the Wear/Friction Behavior of Nanocrystalline Ferrite During Nanoscratching as Revealed by Molecular Dynamics

Using embedded atom method potential, extensive large-scale molecular dynamics (MD) simulations of nanoindentation/nanoscratching of nanocrystalline (nc) iron have been carried out to explore grain size dependence of wear response. MD results show no clear dependence of the frictional and normal forces on the grain size, and the single-crystal (sc) iron has higher frictional and normal force compared to nc-samples. For all samples, the dislocation-mediated mechanism is the primary cause of plastic deformation in both nanoindentation/nanoscratch. However, secondary cooperative mechanisms are varied significantly according to grain size. Pileup formation was observed in the front of and sideways of the tool, and they exhibit strong dependence on grain orientation rather than grain size. Tip size has significant impact on nanoscratch characteristics; both frictional and normal forces monotonically increase as tip radii increase, while the friction coefficient value drops by about 38%. Additionally, the increase in scratch depth leads to an increase in frictional and normal forces as well as friction coefficient. To elucidate the relevance of indentation/scratch results with mechanical properties, uniaxial tensile test was performed for nc-samples, and the result indicates the existence of both the regular and inverse Hall–Petch relations at critical grain size of 110.9 Å. The present results suggest that indentation/scratch hardness has no apparent correlation with the mechanical properties of the substrate, whereas the plastic deformation has.

Structural and Magnetic Studies of Nano-crystalline Ferrites MFe2O4 (M = Zn, Ni, Cu, and Co) Synthesized Via Citrate Gel Autocombustion Method

Nano-crystalline ferrites with the chemical formula MFe2O4 (M = Zn, Ni, Cu, and Co) were synthesized via autocombustion route with citric acid as fuel. The ratio of citric acid to metal nitrate was taken as 1:1. The synthesized samples were characterized by powder X-ray diffraction and far-IR spectroscopy. The measured lattice constants and observed characteristic IR absorption bands of all samples were in good agreement with the reported values and showed the formation of a cubic spinel structure. The crystallite sizes of all samples were determined using high-intensity peaks and a W-H plot. The crystallite sizes of all samples were observed to be in the range of 16–26 nm with the least crystallite size of 16.8 nm for copper ferrite. All structural parameters were calculated using an experimental lattice constant and an oxygen positional parameter and correlated with far-IR results. Zinc and copper owing to their large cation radii showed the expansion of the lattice in view of the oxygen positional parameter. Magnetic measurements were carried out using a vibrating sample magnetometer at room temperature, and parameters such as saturation magnetization, coercivity, remanence, squareness ratio, and Bohr magnetons were calculated. Among all synthesized nano-ferrites, cobalt nano-ferrite showed the highest saturation magnetization of 41 emu/g, whereas zinc ferrite displayed a low saturation magnetization value of 12.87 emu/g.

Thermostat Influence on the Structural Development and Material Removal during Abrasion of Nanocrystalline Ferrite.

We consider a nanomachining process of hard, abrasive particles grinding on the rough surface of a polycrystalline ferritic work piece. Using extensive large-scale molecular dynamics (MD) simulations, we show that the mode of thermostating, i.e., the way that the heat generated through deformation and friction is removed from the system, has crucial impact on tribological and materials related phenomena. By adopting an electron-phonon coupling approach to parametrize the thermostat of the system, thus including the electronic contribution to the thermal conductivity of iron, we can reproduce the experimentally measured values that yield realistic temperature gradients in the work piece. We compare these results to those obtained by assuming the two extreme cases of only phononic heat conduction and instantaneous removal of the heat generated in the machining interface. Our discussion of the differences between these three cases reveals that although the average shear stress is virtually temperature independent up to a normal pressure of approximately 1 GPa, the grain and chip morphology as well as most relevant quantities depend heavily on the mode of thermostating beyond a normal pressure of 0.4 GPa. These pronounced differences can be explained by the thermally activated processes that guide the reaction of the Fe lattice to the external mechanical and thermal loads caused by nanomachining.

Auto Combustion Synthesis, Microstructural and Magnetic Characteristics of Nickel Ferrite Nanoparticles

Background/Objectives: Nickel ferrite nanoparticles are of great interest in various technical and medical applications, such as in sensors, biomedicine and catalysis. In the current investigation, NiFe2O4 nanoparticles have been successfully synthesized via the sol-gel self-ignited process using citric acid as fuel. Methods/Statistical Analysis: Self-ignited sol-gel process was adopted to prepare the sol with the addition of a suitable amount of ethanol. The sol was stirred at 80°C to achieve the dried gel. Thereafter, the dried gel was self-ignited through sol-gel method to reduce the metal iron and to attain the residual precursor. Finally, the residual precursor powder was sintered in air at 700°C for 4 hrs to obtained NiFe2O4 nanoparticles. XRD, FESEM, TEM, FTIR and XPS were used to characterize the synthesized products. Findings: The results confirm the formation of single phase spinel structure, identical grain size (~25 nm) and nodular particle morphology. Magnetic measurements indicated that nanocrystalline ferrite (NiFe2O4) nanoparticles are soft ferromagnetic in nature with high saturation magnetization 44.36 emu/g which is smaller than bulk one. Applications/Improvements: Self-ignited sol-gel method has salient advantages for the synthesis of novel ferrite nanoparticles (soft magnets) having improved performance well suited to drug delivery, magnetic resonance imaging and catalysis etc.

Impact of Dy on structural, dielectric and magnetic properties of Li-Tb-nanoferrites synthesized by micro-emulsion method

A series of Dy-doped Li–Ni ferrites of the following composition Li0.5Ni0.48Tb0.02DyxFe2−xO4 (0.2≤x≥0) was synthesized by the microemulsion method. The X-ray diffraction (XRD) analysis indicated that Li0.5Ni0.48Tb0.02DyxFe2−xO4nano-crystalline ferrites exhibited the single-phase spinel structure. The lattice parameter was determined by the Nelson-Riley refinement technique and it increased by increasing the Dy contents. The crystallite size was computed from the Debye Scherrer's formula and it was in range from 27 to 40nm. The thermal decomposition process was studied by the thermogravimetric analysis and the annealing temperature observed was 980°C. The real and complex parts of dielectric constant decreases very sharply in the lower frequency region, but in the higher frequency region, the real and complex part of dielectric constant show variable values with Dy contents. The dielectric tangent loss (tanδ) decreases exponentially with Dy contents. The magnitude of the ac conductivity decreases in certain frequency region, as the Dy contents are increased. The possible mechanisms contributing to the above behavior are discussed. The results of these nanocrystalline ferrites are very suitable materials for microwave device applications.

Frequency and temperature effects on dielectric properties of cobalt ferrite

In this work the cobalt ferrite (CoFe2O4) nanocrystalline powder has been synthesized by co-precipitation method. Structural characterization carried out through X-ray diffraction (XRD) spectral analysis indicates the cobalt ferrite crystallizes in the inverse cubic spinel phase with a lattice constant 8.59 A. The vibrational modes of the octahedral and tetrahedral metal complex in the sample have been examined using Fourier Transform Infra-Red (FT-IR) in the wave number range of 500 to 850 cm−1, and it shows an absorption band within this range, which confirms the spinel structure of the sample. The existence of Co, Fe and O has been evident through energy dispersive spectrum and the surface features analysis made with the help of Field Emission-Scanning Emission Microscopy (FE-SEM). The frequency (100 Hz–1 MHz) and temperature (T = 303–500 K) dependence of dielectric constant showed a sharp decrease with increase in frequency indicate that cobalt ferrite exhibit two dielectric relaxations at lower frequencies (100 Hz). The dielectric constant of cobalt ferrite is temperature independent up to 200 K.

Structural, dielectric and electrical properties of Ni (Cd, Zn) Fe2O4 by Auto Combustion method

Nickel ferrite nano-particles having the basic composition Ni0.75M0.25Fe2O4 (M=Cd+2, Zn+2) were prepared using auto combustion method. The structural, dielectric and a.c conductivity of these samples, which were sintered at 900°C were studied. The structures of the synthesized samples were probed by X-ray diffraction (XRD) studies. The peaks observed in the XRD spectrum indicated single phase spinel cubic structure for the synthesized samples. Surface morphology of the samples has been investigated using Field Emission Scanning Electron Microscope (FESEM). The dielectric constant (ε') and dielectric loss tangent (tan δ) of doped nano-crystalline nickel ferrites were investigated as a function of frequency at room temperature over the frequency range 100 Hz to 1 MHz using Hioki make LCR Hi-Tester 3250. Dielectric dispersion was observed for the synthesized samples. The dependence of ε' and tan δ with the frequency of the alternating applied electric field is in accordance with the Maxwell-Wagner type interfacial polarization. The electrical conductivity (σac) deduced from the measured dielectric data has been thoroughly analyzed and found that the conduction mechanism in Cd+2 and Zn+2 doped NiFe2O4 nanoferrite are in conformity with the electron hopping model.

Structural, magnetic and spectral properties of Gd and Dy co-doped dielectrically modified Co-Ni (Ni0.4Co0.6Fe2O4) ferrites

Gadolinium (Gd) and Dysprosium (Dy) co-doped Ni-Co (Ni0.4Co0.6Fe2O4) ferrites were prepared by micro-emulsion route. X-ray diffraction (XRD) analysis indicated the development of cubic spinel structure. The lattice parameter and X-ray density were found to increase from 8.24 to 8.31Å and 5.57 to 5.91(gm/cm3) respectively as the Gd-Dy contents increased in nickel-cobalt ferrites. The crystallite size calculated from the Scherrer's formula exhibited the formation of nanocrystalline ferrites (13–26nm). Two foremost absorption bands observed in FTIR spectra within 400cm−1 (υ2) to 600cm−1 (υ1) which correspond to stretching vibrations of tetrahedral and octahedral complexes respectively. The dielectric constant (ε) and dielectric loss (tanδ) were decreased by the optimization of frequency and abrupt decrease in the low frequency region and higher values in the high frequency region were observed. The dielectric dispersion was due to rapid decrease of dielectric constant in the low frequency region. This variation of dielectric dispersion was explicated in the light of space charge polarization model of Maxwell-Wagner. The dielectric loss occurs in these ferrites due to electron hopping and defects in the dipoles. The electron hopping was possible at low frequency range but at higher frequency the dielectric loss was decreased with the decrease of electron hopping. Magnetic properties were observed by measuring M-H loops. Due to low dielectric loss and dielectric constant these materials were appropriate in the fabrication of switching and memory storage devices.

The effect of Tin additionon on Structural and magnetic properties of the stannoferrite Li0.5+0.5XFe2.5-1.5XSnXO4

The physical properties of ferrites are verysensitive to microstructure, which in turn critically dependson the manufacturing process.Nanocrystalline Lithium Stannoferrite system Li0.5+0.5XFe2.5-1.5XSnXO4,X= (0, 0.2, 0.4, 0.6, 0.8 and 1.0) fine particles were successfully prepared by double sintering ceramic technique at pre-sintering temperature of 500oC for 3 h andthepre-sintered material was crushed and sintered finally in air at 1000oC.The structural and microstructural evolutions of the nanophase have been studied using X-ray powder diffraction (XRD) and the Rietveld method.The refinement results showed that the nanocrystalline ferrite has a two phases of ordered and disordered phases for polymorphous lithium Stannoferrite.The particle size of as obtained samples were found to be ~20 nm through TEM that increases up to ~ 85 nmand isdependent on the annealing temperature. TEM micrograph reveals that the grains of sample are spherical in shape. (TEM) analysis confirmed the X-ray results.The particle size of stannic substituted lithium ferrite fine particle obtained from the XRD using Scherrer equation.Magneticmeasurements obtained from lake shore’s vibrating sample magnetometer (VSM), saturation magnetization ofordered LiFe5O8 was found to be (57.829 emu/g) which was lower than disordered LiFe5O8(62.848 emu/g).Theinterplay between superexchange interactions of Fe3+ ions at A and B sublattices gives rise to ferrimagnetic ordering of magnetic moments,with a high Curie-Weiss temperature (TCW ~ 900 K).