Improvements in the mechanical properties and oxidation resistance of MgO-C refractories with the addition of nano-Y 2 O 3 powder
Source abstract
Abstract
Nano-Y2O3 powder was added to the composition of MgO-C refractory to improve its mechanical properties and oxidation resistance. The changes in bulk density (BD), flexural strength (FS), cold crushing strength (CCS), and oxidation rate were studied with the phase and microstructural developments. The BD, FS and CCS of the MgO-C refractories were increased by adding the nano-Y2O3 powder, which contributed to the dispersion of the nano-Y2O3 in the gaps between differently sized MgO particles. Meanwhile, the oxidation rate of the MgO-C refractory added with the nano-Y2O3 was decreased owing to a dense oxidised layer was formed. The dense layer hindered the inward diffusion of oxygen and protected the refractory from oxidation.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Magnesium Oxide Properties and Applications · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Metallurgy, Northeastern University, Shenyang, People’s Republic of China
Funding
Natural Science Foundation of China
References (46)
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