Structure and properties of nanoporous ceramic Al2O3 obtained by isostatic pressing

Сирота, В. В.; Gevorkyan, É. S.; Ковалева, М. Г.; Ivanisenko, V. V.

doi:10.1007/s10717-013-9475-z

Cited by 7 publications

(2 citation statements)

References 1 publication

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“…Consequently, the flexural strength in 1400 °C sintered samples is slightly higher than that of 1500 °C sintered batch. This is in accordance with literature, which suggests an increase in the flexural strength for a decrease in the grain diameter [8,10,11,16,[33][34][35]. On the other hand, although, the samples sintered at 1300 °C and 1350 °C have smaller grain sizes than 1400 °C sintered batch, but possess higher total porosity fractions of 6.7±2.6 % and 5.2±2.6 % respectively, which resulted in smaller flexural strength values.…”

Section: Flexural Strength Resultssupporting

confidence: 91%

Flexural strength evaluations and fractography analyses of slip cast mesoporous submicron alumina

Rowthu

Saeidi

Wasmer

et al. 2018

Ceramics International

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Mesoporous submicron α−Al2O3 green compacts were fabricated using slip casting of ultrafine alumina powders. The pre-sintered samples were sintered in air atmosphere at 1300 °C, 1350 °C, 1400 °C, and 1500 °C to obtain a variety of grain morphologies namely submicron equiaxed and micro rod structures. The resulting grain diameters lie between ∼270 nm and ∼1590 nm and total porosity fraction between 0.05 % and 13 %. The room temperature flexural strength (σ) evaluations and fractography analyses of sintered alumina samples were performed. It was observed that the total porosity fraction dictates the flexural strength as compared to grain diameter. Further, it was found that the flexural strength exhibited a decreasing trend for an increase in the total porosity fraction, and proved to be a better effective parameter than open porosity fraction. The fractography analyses suggest that samples sintered at 1300 °C and 1350 °C predominantly underwent intergranular fracture, while those sintered at 1400 °C and 1500 °C underwent a mixture of intergranular and transgranular fracture.

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Section: Flexural Strength Resultssupporting

confidence: 91%

Flexural strength evaluations and fractography analyses of slip cast mesoporous submicron alumina

Rowthu

Saeidi

Wasmer

et al. 2018

Ceramics International

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“…An overview of the structure and properties of nanomaterials obtained by isostatic compression is carried out in [3]. Possibilities of the implementation of this material in bearing structures of vehicles for ensuring strength under operational load conditions is not carried out in the work.…”

Section: Previous Research Overviewmentioning

confidence: 99%

Dynamic load computational modelling of containers placed on a flat wagon at railroad ferry transportation

Fomin¹,

Lovska²,

Píštěk³

et al. 2019

Vib. proced.

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The article presents result of computational modelling of container dynamic load during transportation as a part of trains of intermodal transport on a railway ferry. The computational models were developed which account the movement of the container with regard to the frame of the flat wagon while moving of the railway ferry. It was assumed that there is no movement of the flat wagon with regard to the deck, since these movements were limited by fastening means. The obtained acceleration rates, as components of the dynamic loads acting on the container, were accounted while determining the containers stability coefficient with regard to the flat wagons. The railway ferry heeling angles which ensure the stability of the containers were determined. The researches will ensure safety of transportation of containers as a part of trains of intermodal transport on a railway ferry, as well as increase the efficiency of operation of intermodal transport in the international transport.

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Thermal conductivity of Al2O3-SiC nanocomposites prepared by the electroconsolidation method

Kislitsa

Khadzhai

Gevorkyan

et al. 2019

Low Temperature Physics

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A comparative study of the thermal conductivity of composite ceramic material samples prepared using electroconsolidation with direct current transmission, was performed in the temperature range of 15–300 K. The experimental data on the temperature dependence of thermal conductivity are approximated within the framework of the Debye phonon spectrum model, taking into account various scattering mechanisms. The optimal consolidation temperature, which ensures the maximum thermal conductivity of the composite, is determined.

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Structure and properties of nanoporous ceramic Al2O3 obtained by isostatic pressing

Cited by 7 publications

References 1 publication

Flexural strength evaluations and fractography analyses of slip cast mesoporous submicron alumina

Flexural strength evaluations and fractography analyses of slip cast mesoporous submicron alumina

Dynamic load computational modelling of containers placed on a flat wagon at railroad ferry transportation

Thermal conductivity of Al2O3-SiC nanocomposites prepared by the electroconsolidation method

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