article·2003-01-01

Solid-Solubility of MgO in the MgO (10.4mol%)-ZrO_2 Powder Coprecipitated

Rong Tian

Abstract

MgO(10.4mol%)-ZrO2 powders coprecipitated were heated isothermally and quenched from 500 to 1450℃, then acid-leached and milled. Afterwards, the prepared powders were characterized by XRD and TEM technologies. The results show that all MgO(10.4mol%) is almost soluble in ZrO2 after isothermal heating at 1450℃ for 2h and quenching; at 750-1350℃, the solubility of MgO is about 2.2mol%; at 500℃, it is 7.7mol%. The rest of MgO exists on the surface of the ZrO2 crystallites.
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Research context

OpenAlex topics: Advanced ceramic materials synthesis · Magnesium Oxide Properties and Applications · Metallurgical Processes and Thermodynamics

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