strontium ferrite slag

The invention provides a preparation method of strontium permanent magnetic ferrite, which comprises the following steps: s1, mixing the ferrite pre-sintered material with water, sequentially adding a dispersing agent and light calcium carbonate, uniformly mixing, and performing ball milling to obtain slurry; the ferrite pre-sintering material comprises …

Lanthanum strontium ferrite powder, <0.5 μm particle size; Synonyms: LSF,Lanthanum strontium iron oxide; find Sigma-Aldrich-734640 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich

Ionic-Liquid-Gating-Induced Hydrogenation in Epitaxial Strontium Ferrite. Fengbo Yan, Fengbo Yan. School of Materials Science and Engineering, Nankai University, Tianjin, 300350 People's Republic of China. Search for more papers by this author. Vladislav Korostelev, Vladislav Korostelev.

The article briefly introduced the technology and the craft of Pyritic slag depuration,discussed the major effect factor in make pre-roasted material of Strontium Ferrite by the depuration,and in the big production the final magnetic performance stably achieve Br:400 mT,Hcb:270 kA/m,Hcj:280 kA/m,(BH)m:32 kJ/m~3.

1. Introduction. Hexagonal ferrite materials have wide application prospects in radar communication, power electronics, automotive micromotors, and other fields owing to their excellent magnetic properties [1], [2].In particular, M-type strontium ferrites not only occupy more than 70% of the market share in the field of electric motors but also have …

SrM is a typical hexagonal ferrite, in which Fe 3+ occupies five sites: octahedral sites 2a, 12k, and 4f 2; tetrahedral site 4f 1; and trigonal bipyramid site 2b. From the perspective of the magnetic structure, Fe 3+ has a majority spin direction in the 2 a, 2 b, and 12 k sites, whereas Fe 3+ has a minority spin direction in the 4 f 1 and 4 f ...

While bismuth ferrite BiFeO3 (BFO) is a well studied multiferroic material, its electronic and magnetic properties in the presence of A-site dopants have not been explored widely. Here we report ...

By mixing Sr-ferrite and NdFeB and taking advantage of the coupling effect between phases, composite magnets with moderate magnetic properties, high-temperature stability, and low cost can be prepared. In this study, Sr-ferrite/NdFeB hybrid magnets are prepared via a solid–solid mixing method with a cold press under field orientation and …

New measurements have been made on the equilibrium distribution of selenium and tellurium between molten slag and metal phases under a controlled CO-CO2 atmosphere. Distribution coefficients of Se and Te between magnesia-saturated calcium ferrite slag and copper or silver alloy were measured at 1473 to 1673 K and oxygen …

Among the permanent magnets hard ferrites, particularly M-type hexagonal ferrites (Sr-Ferrite and Sa-Ferrite) have special place by virtue of their low cost and reasonable magnetic properties. This paper gives a brief introduction of hard ferrites with special reference to strontium ferrite permanent magnet. Processing of, sintered and …

A Möss effect study of ball-milled strontium ferrite. J. Magn. Magn. Mater. 177-181, 255–256 (1998). Article ADS CAS Google Scholar Carvajal, R. Recent …

The effectiveness of employing La-Ca-Co co-doping has been demonstrated as the optimal approach for enhancing the magnetic performance of strontium ferrite. However, limited studies have explored the evolution of the magnetoplumbite phase and its correlation with the sintering temperature.

The paper is focused on the development and optimization of strontium ferrite nanomaterial and photosintered flexible thin films. These magnetic thin films are characterized with direct current (DC) and high frequency measurements. For photosintered strontium ferrite samples, we achieved relative complex permeability of about 29.5-j1.8 …

Investigation of structural, morphological and magnetic properties of nanostructured strontium hexaferrite through co-precipitation technique: Impacts of …

The effect of Ti 4+ and Mg 2+ substitution on the structural, optical, photocatalytic, and antimicrobial activity of strontium ferrite NPs was comprehensively studied. The ratio of Ti 4+ and Mg 2+ ions was varied in Sr 0.4 Ti 0.6-x Mg x Fe 2 O 4+δ (x = 0.0–0.6) NPs. XRD patterns confirmed the presence of single-phase ferrite NPs. …

The effects of heat treatment conditions on the magnetic properties and microstructure of M-type strontium ferrite according to calcination temperature were …

SECTION 1. IDENTIFICATION. Product Name: Strontium Ferrite Nanoparticles / Nanopowder Product Number: All applicable American Elements product codes, e.g. SR-FEIT-02-NP, SR-FEIT-03-NP, SR-FEIT-04-NP, SR-FEIT-05-NP CAS #: 1 Relevant identified uses of the substance: Scientific research and development Supplier …

Here we demonstrate the strontium ferrites (Sr 0.34 Ca 0.25 La 0.41 Fe 11.4 Co 0.19 O 19-δ) sintered at 1150 °C with enhanced magnetic properties through …

During synthesis of Strontium ferrite and graphene oxide composite, GO (0.9 g) was dissolved in 80 mL of ethylene glycol being ultrasonically for 6–7 h. 1.72 g of Fe (NO 3) 3 ·9H 2 O, 0.95 g of ...

The main alternative in the permanent magnet market is M-type strontium ferrite (SrFe 12 O 19, SrM) owing to its low cost, ... Ecofriendly and cost-effective composites of titanium slag and carbonyl iron for lightweight and tunable microwave absorption. Ceramics International, Volume 49, Issue 7, 2023, pp. 10535-10542 ...

M-type strontium hexaferrite (SrFe 12 O 19) is an important hard magnetic material with a ferrimagnetic structure. Owing to its unique magnetic properties, it is very suitable for the use in data ...

Width-controlled M-type hexagonal SrFe12O19 nanoribbons were synthesized for the first time via polyvinylpyrrolidone …

The effects of heat treatment conditions on the magnetic properties and microstructure of M-type strontium ferrite according to calcination temperature were analyzed. Strontium ferrite Sr0.06Ca0.52La0.52Fe11.68Co0.22O19 magnetic powder was prepared by a standard ceramic process. During experiments, the calcination …

Strontium ferrite nanostructures have attracted intensive interest recently due to the increasing demand for cost-effective features and good chemical corrosion resistance of magnetic materials, yet the ultrafast synthesis of strontium ferrite with desired coercivity is still experiencing a severe challenge. Herein, porous strontium …

Exsolution of Fe and SrO Nanorods and Nanoparticles from Lanthanum Strontium Ferrite La 0.6Sr 0.4FeO 3−δ Materials by Hydrogen Reduction Ramona Thalinger,† Martin Gocyla,‡ Marc Heggen,‡ Bernhard Klötzer, † and Simon Penner*,† †Institute of Physical Chemistry, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria ‡Ernst …

Recycling oily CRM sludge can not only reduce pollution but also bring social and environmental benefits. In this study, using oily CRM sludge as sources of iron …

In this experiment, Mn substituted strontium ferrite powders for high coercivity were synthesized by the molten salt method to control their morphology and structure. As a result, single crystalline hexa-ferrite powders with an average size of 1∼3 μm were successfully obtained by initial calcination at 850°C for 1 hr and then at 950°C …

Strontium ferrite (SrFe12O 19) was synthesised in a solid phase reaction by applying the conventional ceramic method. The precursor powder, containing magnetic iron species …

The invention relates to a method for recovering strontium slag. The method comprises the following main steps: (1) adding hydrochloric acid in the strontium slag under the condition of stirring until the pH value of a reaction system is stabilized between 1 and 2; (2) adding a calcium carbonate source substance in the reaction system obtained …

The ceramic compounds are widely used because of their unique features. Currently, the strontium-doped manganese spinel ferrites were obtained by using sol/gel method. The chemical formula of prepared samples was written as Mn1-xSrxFe2O4. The dopant concentration varies as 0.00, 0.20, 0.40, 0.60, 0.80 and 1.00. Cubic structure was …

There are two formula units (Z = 2) per unit cell of M-type hexagonal ferrite, i.e. the unit cell contains 2 strontium ions, 24 iron and 38 oxygen ions. The closest packing of O 2 − ions forms several types of voids: octahedra 2a, 12k and 4 f V I; tetrahedra 4 f I V and trigonal bipyramid 2b, where magnetic iron ions are located.

This M-type ferrite consists of smaller units: a cubic S block with a spinel-type structure and a hexagonal R block that contains the Sr ions. According to the Wyckoff positions, this structure has 2 Sr 2+ ions in the 2d site and 38 O 2− ions in the 4e, 4f, 6h, 12k 1 and 12k 2 sites (the 12k 1 and 12k 2 sites have different atomic coordinates ...

A method to produce a magnetic barium or strontium ferrite comprising solubilizing an alkaline earth metal compound in an aqueous solution containing about 20 to about 60 weight percent alkali metal hydroxide. The resulting solution is heated to within the range of about 90° to about 130° C and thereafter admixed with a sufficient amount of a soluble …

The ferrite precursors were obtained from aqueous mixtures of strontium chloride and ferric chloride by precipitating strontium and iron using 7.5 M sodium hydroxide solution.

A hard magnetic strontium hexaferrite was successfully synthesized from SrCl2 and FeCl3 with varying composition of SrCl2 and FeCl3 in stoichiometric ratio ... Muljadi; Analysis of crystal structure and magnetic character strontium ferrite (SrFe 12 O 19) powder made of stoichiometry and non-stoichiometry compositions. AIP Conf. Proc. …

The high oxygen non-stoichiometry (δ) in many mixed ionic conductors does not translate into high ionic conductivity due to strong interactions between oxygen vacancies.In this study, the charge states of Fe in various phases of SrFeO 3−δ were determined by interpreting the density functional theory (DFT) predicted magnetic moment on Fe. The …

In this study, strontium ferrite (SF)-incorporated zeolite imidazole framework (ZIF-8) (SFZIF-8) that can simultaneously uptake Pb(II) and tetracycline (TC) in solution was synthesized and characterized. The physicochemical properties of the as-prepared SFZIF-8 were characterized by various functional groups, higher average pore diameter …