The effect of Y2O3 addition on thermal shock behavior of magnesium aluminate spinel
Source abstract
Abstract
The effect of yttria additive on the thermal shock behavior of magnesium aluminate spinel has been investigated. As a starting material we used spinel (MgAl2O4) obtained by the modified glycine nitrate procedure (MGNP). Sintered products were characterized in terms of phase analysis, densities, thermal shock, monitoring the damaged surface area in the refractory specimen during thermal shock and ultrasonic determination of the Dynamic Young modulus of elasticity. It was found that a new phase between yttria and alumina is formed, which improved thermal shock properties of the spinel refractories. Also densification of samples is enhanced by yttria addition.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Nuclear materials and radiation effects · Microwave Dielectric Ceramics Synthesis
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Affiliations
Institute of Nuclear Science 'Vinca', Materials Science Laboratory, Belgrade
Faculty of Technology and Metallurgy, Belgrade
Faculty of Physical Chemistry, Belgrade
References (9)
Show source-provided references
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