Introduction to Refractory Ceramics
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Common refractory ceramics display significant asymmetric creep behavior at high temperatures under uniaxial loading conditions.
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During the crack propagation in common refractory ceramics at high temperatures, creep may occur in the wake of a process zone and in front of a crack tip.
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Refractory Ceramics sentence examples within Spinel Refractory Ceramics
Fly ash in comparison with alumina were used as raw materials and sources of aluminium oxide for synthesis of forsterite-spinel refractory ceramics.
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This article examines the utilization of fly ash in comparison with alumina as raw materials and sources of aluminium oxide for synthesis of forsterite-spinel refractory ceramics.
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Common refractory ceramics display significant asymmetric creep behavior at high temperatures under uniaxial loading conditions.
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Industrial applications are growing rapidly as TMB2 begin competing with conventional refractory ceramics like carbides and nitrides, including pseudo-binaries such as Ti1-xAlxN.
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Superlattice (SL) thin films composed of refractory ceramics unite extremely high hardness and enhanced fracture toughness; a material combination which is often mutually exclusive.
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The main objective of this study is to select a suitable high-temperature resistant speckle pattern for mechanical characterization at 1200 °C (or above) on refractory ceramics.
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In this work, lightweight magnesia refractory ceramics with tailored closed porosity were prepared by one-step sintering at 1600 °C from high-purity magnesite added with silicon kerf waste in different ratios, with the emphasis on the evolution of their phase compositions, micromorphologies, and various properties.
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It is characterized by the versatility of materials and can be applied to polymers and to refractory ceramics, as well as to any metals and alloys.
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We estimated the thermal state of a structural component in the shape of a blunted wedge made out of promising refractory ceramics under flight conditions at an altitude of 22 km and a velocity of Mach 7.
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Forsterite refractory ceramics is utilized in the metallurgical and cement industries as a lining of metallurgical furnaces and rotary kilns for its high refractoriness up to 1850°C and refractoriness under load above 1600°C.
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Chemical reactivity between alkali metals and materials underlie numerous industry challenges ranging from fireside corrosion in biomass-fired boilers to reaction with silica-based refractory ceramics in glass furnaces.
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In this work, for the first time, we studied the temperature-dependent spectral emittance of highly refractory ceramics, e.
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By taking advantage of the high-temperature stability of refractory ceramics, here we develop a new approach of making hollow nano-grained materials to achieve thermal superinsulation across a wide temperature range, where the gaseous voids are mostly isolated within individual grain, with size comparable to the mean free path of air molecules to lower the thermal conduction by Knudsen effect.
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The proposed photonic sintering approach based on doping with colored centers may be extended to other refractory ceramics with low absorption in the visible light range once appropriate high-absorbing dopants are identified.
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During the crack propagation in common refractory ceramics at high temperatures, creep may occur in the wake of a process zone and in front of a crack tip.
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Fly ash in comparison with alumina were used as raw materials and sources of aluminium oxide for synthesis of forsterite-spinel refractory ceramics.
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This article examines the utilization of fly ash in comparison with alumina as raw materials and sources of aluminium oxide for synthesis of forsterite-spinel refractory ceramics.
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This opens up opportunities for the fabrication of porous lightweight materials with high mechanical properties, but also presents interests in alternative sintering pathways for refractory ceramics.
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RATIONALE
The systems containing zirconia, hafnia, and rare earth oxides are indispensable in various areas of high temperature technologies as a basis of ultra-high refractory ceramics.
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High-frequency induction heating is frequently used to consolidate solid pieces of refractory ceramics.
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SiO2–Al2O3 refractory ceramics with mixtures of 67–23, 56–38, 25–71%, respectively, have 98% resistance against acid solutions.
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In this study, electromagnetic wave power transmission coefficients (PTCs) of alumina refractory ceramics are calculated within the temperature range of 22–1379 °C and the thickness range of 0–0.
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slip casting, direct foaming and additive manufacturing), resulting in innovations to produce advanced refractory ceramics.
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Geopolymer is a ceramic material, most often amorphous; finds applications in fire- and heat-resistant coatings and adhesives, medicines, refractory ceramics and binders, and manufacturing of radioactive waste container.
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Because the ceramic wastes are mainly aluminosilicate, bauxite as a source of aluminum oxide is added to obtain mullite based refractory ceramics.
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These new minerals are interesting due to their similarity with those formed during ceramic processes, used in the manufacture of stoneware and ceramic tiles, as well as in refractory ceramics, and with natural events such as metamorphic and igneous processes.
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The developed emissivity independent in plain IR thermographic method and mathematical algorithms enable thermal diffusivity measurement for both cases with accuracy around a few per cent for a wide range of materials starting from refractory ceramics to well-conducting metals.
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The obtained porous refractory ceramics exhibited apparent porosity of 43%, loss in mass of 38.
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The sintered products are potential refractory ceramics having applicability in high-temperature processes in the metallurgical industry.
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It is known that the porosity has a huge impact on the thermo-mechanical properties of refractory ceramics as Yittria Stabilized Zirconia (YSZ).
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The formation of sp2 carbon by the Boudouard reaction significantly damages the refractory ceramics.
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