Synthesis and sintering of ZrO2-CeO2 powder by use of polymeric precursor based on Pechini process
Source abstract
Abstract
Nanocrystalline ZrO2-12 mol % CeO2powders were synthesized using a polymeric precursor method based on the Pechini process. X-ray diffraction (XRD) patterns showed that the method was effective to synthesize tetragonal zirconia single-phase. The mean crystallite size attained ranges from 6 to 15 nm. The BET surface areas were relatively high reaching 97 m2/g. Studies by nitrogen adsorption/desorption on powders, dilatometry of the compacts, and transmission electron microscopy (TEM) of the powders, were also developed to verify the particles agglomeration state. Both citric acid : ethylene glycol ratio and calcination temperature affected the powder morphology, which influenced the sinterability and microstructure of the sintered material, as showed by scanning electron microscopy (SEM).
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Research context
OpenAlex topics: Catalytic Processes in Materials Science · Advanced ceramic materials synthesis · Mesoporous Materials and Catalysis
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