Magnetic porous composite material: Synthesis and properties

Peretyatko, P I; Куликов, Л. А.; Мелихов, И. В.; Perfil’ev, Yu. D.; Paĺ, A. F.; Тимофеев, М. А.; Гудошников, С.А.; Usov, N. A.

doi:10.1134/s1063785015100260

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…Its application is carried out in two main directions [1][2][3][4]. The first is thermal insulation, while the thermal insulation properties (the value of thermal conductivity and density) are decisive [5]. The second direction is the area where the decisive property of the material is its porous structure and the properties associated with it [6].…”

Section: Introductionmentioning

confidence: 99%

“…Chemically, 96% of the diatomite consists of water silica (opal) [2]. It has a large porosity, the ability to adsorption, weak heat and sound conductivity, refractoriness and acid resistance [5]. Despite the fact that penodiatomite ceramics is a promising material, the properties of this material have been studied insufficiently: the physical and chemical properties of the material (dynamic moduli of elasticity, thermal conductivity coefficient, etc.)…”

Section: Introductionmentioning

confidence: 99%

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Sintering and Mechanical Properties of High-Porosity Ceramics Based on Diatomite

Скворцов

Luk'yanov

Novitsan

2017

SSP

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The study is devoted to the study of the mechanical properties of penodiatomite ceramics. Dynamics of changes in the dynamic moduli of elasticity of highly porous (up to 70%) diatomite ceramics from the annealing time at temperatures of 800-1000 °С has been experimentally studied. The values of the activation energies of the change in the modulus of elasticity (Wa = 0.22-0.24 eV) were measured for high-temperature annealing (800-1000 °С). The change in the phase composition of the samples under the influence of annealing is demonstrated.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sintering and Mechanical Properties of High-Porosity Ceramics Based on Diatomite

Скворцов

Luk'yanov

Novitsan

2017

SSP

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Facile fabrication of cordierite-based porous ceramics with magnetic properties

Jia

et al. 2022

J Adv Ceram

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In this paper, cordierite-based porous ceramics with magnetic properties have been firstly in-situ synthesized by using MgO, Al2O3, and SiO2 powders as raw materials and Fe3O4 as a functional additive. Combining with the foam freeze casting method, near net size fabrication (total linear shrinkage < 2.86%) of the magnetic porous materials was realized by adjusting the amount of Fe3O4. The porosity, compressive strength, and saturation magnetization of the prepared materials were 83.9%–87.8%, 1.51–2.65 MPa, and 1.2–5.8 emu/g, respectively. The phase composition and microstructure evolutions during sintering were investigated briefly. The results showed that the synthesis temperature of cordierite was lowered about 100 °C due to the addition of Fe3O4. Except for the main phase-cordierite, Mg—Al—Fe spinel and α-Fe2O3 also existed in the final materials. The lattice parameters of the Mg—Al—Fe spinel and the amount of α-Fe2O3 changed obviously with the change in the sintering temperature and Fe3O4 amount, which mainly influenced the magnetic properties of the prepared materials. Thus, a facile fabrication method of the cordierite-based porous ceramics with the magnetic properties has been put forward in this paper.

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Method of local fluctuations and simulation of heterogeneous media

Melamed¹

2016

Tech. Phys. Lett.

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Magnetic porous composite material: Synthesis and properties

Cited by 3 publications

References 7 publications

Sintering and Mechanical Properties of High-Porosity Ceramics Based on Diatomite

Sintering and Mechanical Properties of High-Porosity Ceramics Based on Diatomite

Facile fabrication of cordierite-based porous ceramics with magnetic properties

Method of local fluctuations and simulation of heterogeneous media

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