Raman spectra of LnFeO3 series (La to Gd, top to …
Raman spectra of LnFeO3 series (La to Gd, top to bottom) from 200 to 2000 cm⁻¹, with inset of 200 to 700 cm⁻¹; circles indicate Ag(3) mode and squares indicate Ag(5).
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Salikhov, S.V., Toleukhanova, S.K., Bordyuzhin, I.G. and …
ABSTRACT: Mixed-oxide nanostructures of the type xGd2O3-(1-x)α-Fe2O3 (x=0.1, 0.3, 0.5 and 0.7) were synthesized by mechanochemical activation for ball milling times of 0, 2, 4, 8 and 12 …
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Salikhov, S.V., Toleukhanova, S.K., Bordyuzhin, I.G. and …
The XRPD patterns recorded for the equimolar composition were dominated by the diffraction peaks of GdFeO3 after 12 hours of milling. The hysteresis loops were recorded at 300 and 5 K in an applied magnetic field of 5 T and were interpreted as a superposition of paramagnetic behavior of gadolinium oxide and weak ferromagnetic behavior of ...
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Highly enhanced energy storage properties of H
In the present work, we have used high-energy ball milling synthesis process to prepare LaFeO 3, GdFeO 3 nanoparticles and used them as filler in PVDF matrix to develop …
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Wu, A., Wang, Z., Wang, B., Ban, X., Jiang, L., Xu, J., Yuan, S.
ABSTRACT: Mixed-oxide nanostructures of the type xGd2O3-(1-x)α-Fe2O3 (x=0.1, 0.3, 0.5 and 0.7) were synthesized by mechanochemical activation for ball milling times of 0, 2, 4, 8 and 12 hours. The systems were subsequently analyzed by Mӧss spectroscopy, X-ray powder diffraction (XRPD), magnetic measurements and optical diffuse ...
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Crystal structure engineering of GdFeO3/Mxene
The mixture is stirred at 80°C for 4 hrs until a homogeneous gel was formed, then the gel was dried at 120°C for 8 hrs. Then heated the resultant product at 600°C and 900°C (with 6 hours' subsequent ball-milling) for 4 hrs to form the GdFeO 3 nanoparticles in different crystal phases. The corresponding samples are labeled as GFO6 and GFO9 ...
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YFeO3-GdFeO3 solid solutions: Sol-gel synthesis
The aim of the present work is to synthesize YFeO3 via high energy ball milling aided by the sintering process. Photocatalytic behavior along with magnetic and absorption properties of YFeO3 were ...
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Investigation of structure and physical properties of cobalt doped …
DOI: 10.1016/J.JALLCOM.2018.11.095 Corpus ID: 139293028; Investigation of structure and physical properties of cobalt doped nano-crystalline neodymium orthoferrite @article{Somvanshi2019InvestigationOS, title={Investigation of structure and physical properties of cobalt doped nano-crystalline neodymium orthoferrite}, author={Anand Somvanshi and …
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mp-600576: GdFeO3 (orthorhombic, Pnma, 62)
Browse many computed properties for this orthorhombic GdFeO3 compound, including formation energy from the elements, energy of decomposition into the set of most stable materials at this chemical composition, bulk crystalline density, and band gap. Also known as: High pressure experimental phase, Gadolinium iron(III) oxide, Gadolinium ferrate, Gadolinium iron xide, …
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Ball Milling Method for Synthesis of Nanomaterials
The ball mill system consists of one turn disc (turn table) and two or four bowls. The turn disc rotates in one direction while the bowls rotate in the opposite direction. The centrifugal forces, created by the rotation of the bowl around its own axis together with the rotation of the turn disc, are applied to the powder mixture and milling ...
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Ball-milling method encapsulated α-Fe
In this study, we developed the first ball-milling method and solvent-free routes for preparing g-C 3 N 4 wrapped α-Fe 2 O 3. The intimate alignment between Fe 2 O 3 and C 3 N 4 results in …
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Mechanosynthesis of Gadolinium Iron Garnet | Request PDF
We investigated the mechanosynthesis of gadolinium iron garnet by high-energy ball milling stoichiometry amounts of α-Fe2O3 and Gd2O3, followed by short thermal …
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Mechanosynthesis and electrical conductivity of undoped and …
Fig. 3 demonstrates the time-dependent evolution of particular phases during the ball-milling process. As it is exemplarily shown, in the early stage, the ball milling treatment initiates the C→B phase transition. Up to now, the phase transition in Gd 2 O 3 has been observed in several cases as listed in Table 1. In this context, the high ...
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Working principle of ball milling process.
Nevertheless, parameter factors, such as the type of ball milling, ball-to-powder ratio (BPR), rotation speed, grinding period, size and shape of the milling media, and process control agent (PCA ...
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Sol–gel synthesis and characterization of polycrystalline GdFeO3 and
Parent and Bi doped Gd3Fe5O12 have been prepared by high energy ball milling and subsequent sintering methodology. Bi ion had been doped at Gd site to enhance the magnetic properties.
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Ball milling
Ball milling. A method of grinding particles in ceramic powders and slurries. A porcelain, metal or rubber vessel filled with pebbles tumbles and particles are ground between colliding pebbles. Key phrases linking here: ball milling, ball milled, ball-milled, ball mill - Learn more.
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High-entropy strategy for high-temperature broadband infrared …
With the advances in the aerospace industry, the increased thrust-to-weight ratio of hypersonic vehicles has created a harsh working environment for hot-end components of superalloys [[1], [2], [3]].For instance, when traveling at Mach 5 speed, aircraft skin temperature can reach 1200 °C or even 1500 °C and the operating temperature of the turbine blades of an …
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(PDF) Crystal structure engineering of GdFeO3/Mxene
The GFO9 treate d at 900°C with ball-milling f or 4 hours shows a different pattern in Fig. 2a, indicating the tre atment induced t he phase transition of GFO. Dif fraction peaks at 2 θ = 24.5 ...
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Ball milling as a mechanochemical technology for fabrication of …
Ball milling time and pyrolysis temperature of biochar would vary the particles sizes and adsorption capacities on Cu 2+ and thus were the determining factors for the synergistic toxicity (Liu et al., 2020). Optimization of synthesis conditions to enhance the effect of ball-milled biochar on antibiotics production is of great significance.
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Synthesis and Magnetic Studies of Nano-Crystalline GdFeO3
Here a series of lanthanide orthoferrite perovskites, LnFeO3 (Ln = La; Nd; Sm; Eu; Gd), prepared through a standard stoichiometric wet ball milling route using oxide precursors, has ...
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Crystal structure engineering of GdFeO3/Mxene composites
AlFeO(3) and GaFeO(3), which crystallize in a chiral orthorhombic (Pna2(1)) structure, transform to a rhombohedral (R3c) structure when subjected to ball-milling.
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Mechanosynthesis of Gadolinium Iron Garnet | Request PDF
We investigated the mechanosynthesis of gadolinium iron garnet by high-energy ball milling stoichiometry amounts of α-Fe2O3 and Gd2O3, followed by short thermal annealings conducted at moderate ...
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Synthesis and Characterization of Gadolinium Oxide-Hematite …
= 0.1, 0.3, 0.5, 0.7 and ball milling times (BMT) of 0, 2, 4, 8 and 12 hours, respectively. The refined values of the hyperfine parameters extracted from these spectra by nonlinear least-squares fitting are listed in Table 1.The spectra in Figures 1(a)-4(a) were analyzed considering one six-line pattern, with the magnetic hyperfine field (BHF) characteristic to hematite.
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Structural, Magnetic and Heating Efficiency of Ball Milled γ-Fe
The preparation of γ-Fe2O3/Gd2O3 nanocomposite for possible use in magnetic hyperthermia application was done by ball milling technique. The nanocomposite was characterized by X …
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Ball Milling and Magnetic Modification Boosted Methylene Blue …
Ball milling is a feasible and promising method of biochar modification that can significantly increase its adsorption ability to methylene blue (). This study synthesized nine biochars derived from water hyacinth under different pyrolysis temperatures and modified with ball milling and Fe3O4. The structural properties of the pristine and ball-milled magnetic biochars …
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Correlation between ball milling parameters and graphene …
The ball milling technique is a widely employed method for graphene extraction and is a dominant shear-force exfoliation approach, revolving around reducing particle size through impact and wear. During this process, the graphite serving as precursor suffers arbitrary collisions with metal balls (grinding media generally made up of steel or ...
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Ground state spin structure of GdFeO3: A computational
In this work, the role of magnetic ion Gd 3+ in the crystal structure, magnetic and magnetocaloric properties of doped lanthanum-strontium manganite (La 0.7-x Gd x Sr 0.3 MnO 3 varying x from 0 to 0.2) synthesized by high-energy ball milling assisted with annealing, is discussed. Furthermore, the interplay between the magnetic and crystal ...
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Crystal structure engineering of GdFeO3/Mxene
In this study, we synthesized a novel composite material by combining MXene with GdFeO 3 nanoparticles, employing crystal structure engineering to enhance electromagnetic …
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Crystal structure engineering of GdFeO3/Mxene
In this study, a new composite material consisting of MXene and GdFeO 3 nanoparticles has been synthesized using crystal structure engineering to improve EMW …
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Mechanochemical Decomposition of Gd3Fe5O12 Garnet Phase
Gadolinium iron garnet was milled in a high energy ball mill to study its magnetic properties in the nanocrystalline regime. XRD reveals the decomposition of the garnet phase …
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Exfoliated graphite via ball-milling for enhanced microwave …
The ball milling process resulted in the formation of defects in the graphite layers, which caused dipole polarisation in EG and interface polarisation at the interfaces between EG and air. The increase in the Cole-Cole plot's tail indicates a decrease in conductivity in EG [34, 42]. To assess the electromagnetic absorption capabilities of EG ...
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Which methods are useful to prepare a perovskite GdFeO3
Try ball milling of the precursor oxide powders with varying proportions you need and do the calcination of the mixed powders. Search for the optimized Ball milling and …
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