Heat-insulating mullite-cordierite materials made from staurolite

Belogurova, O. A.; Grishin, N. N.

doi:10.1007/s11148-013-9549-z

Cited by 3 publications

(1 citation statement)

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“…On the one hand, magnesium materials have the characteristics of good heat insulation [2,3]. Light material is an important part of magnesium heat insulation material, and its structure and performance directly a ect the performance of magnesium materials [4].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Morphology Analysis of a Novel Coating MgO–B2O3–SiO2–Zn

Fan

et al. 2022

Advances in Materials Science and Engineering

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This article focuses on the microstructure and mechanism analysis of the novel coating MgO– B2O3–SiO2–Zn prepared by plasma spraying and flame spraying on the SUS304 alloy substrate. Firstly, the crystal compositions of the powders were analyzed by XRD (X-ray diffraction). Secondly, the surface and cross section microstructures of the coating were observed by SEM (Scanning Electron Microscope) and EPMA (electron probe microanalysis) in order to study the mechanism of the thermal insulation performance. It is concluded that, the microstructure, different thickness and compositions have various effect on heat insulation.

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Section: Introductionmentioning

confidence: 99%

Microstructure and Morphology Analysis of a Novel Coating MgO–B2O3–SiO2–Zn

Fan

et al. 2022

Advances in Materials Science and Engineering

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Staurolite Shales for Mullite-Silica Carbidized Heat Insulation

2016

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Thermal Properties of Porous Mullite Ceramics Modified with Microsized ZrO2 and WO3

Mahņicka-Goremikina

Švinka²,

Švinka³

et al. 2022

Materials

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Mullite ceramics are well known as materials with a high temperature stability, strength and creep resistance. In this research, the effect of a modification with magnesia-stabilized zirconia and yttria-stabilized zirconia, separately, as well as in a mixture with WO3, in 1:1 and 1:2 ratios on the thermal properties of porous mullite ceramics was investigated. The porous mullite-containing ceramics were prepared by a slip casting of the concentrated slurry of raw materials with the addition of a suspension of Al paste for the pore formation due to the H2 evolution as a result of the reaction of Al with water. The formed samples were sintered at 1600 °C and the holding time was 1 h. The materials were characterized using X-ray diffractometry, scanning electron microscopy, mercury porosimetry, the laser flash contactless method, thermal shock resistance testing and the non-destructive impulse excitation method for determining the elasticity modulus. The modification of the porous mullite ceramic with a mixture of ZrO2 and WO3 oxides had a positive effect by decreasing the thermal conductivity, due to the increased porosity, in comparison to the undoped samples and samples with only ZrO2. The doubling of the WO3 amount in the modifying oxide mixtures improved the ceramic thermal shock resistance. The porous mullite ceramics which were modified with magnesia-stabilized zirconia (2.8 mol% MgO) and WO3 had a lower thermal conductivity and improved thermal shock resistance than the samples with yttria-stabilized zirconia (8 mol% Y2O3) and WO3.

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Heat-insulating mullite-cordierite materials made from staurolite

Cited by 3 publications

References 1 publication

Microstructure and Morphology Analysis of a Novel Coating MgO–B2O3–SiO2–Zn

Microstructure and Morphology Analysis of a Novel Coating MgO–B2O3–SiO2–Zn

Staurolite Shales for Mullite-Silica Carbidized Heat Insulation

Thermal Properties of Porous Mullite Ceramics Modified with Microsized ZrO2 and WO3

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