Sintering Property and Hydration Resistance of CaO-Y2O3 Composite Materials
DOI:
https://doi.org/10.54097/hset.v26i.3939Keywords:
CaO-Y2O3 composite materials; precipitation; hydration resistance; sintering property.Abstract
A preparation method of CaO-Y2O3 composite materials and its sintering property and hydration resistance were investigated in this paper. The CaO-Y2O3 core-shell structure powders were obtained by precipitation, after calcination, pressing and sintering the CaO-Y2O3 composite materials were prepared. The obtained powders and composite materials were characterized by crystalline phase formation, thermodynamic property, density, hydration resistance and microstructural analysis. The results showed that the prepared CaO-Y2O3 core-shell structure powders had good coating property, the sintering property and hydration resistance of composite materials were excellent. As the molar ratio Ca to Y was 1:1, the relative bulk density was 95.68%, the apparent porosity was 1.28%, and the hydration weight gain rate of the sample after 21 days in the atmospheric environment was 0.45%.
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