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Eu 3+ and Tb 3+ doped Y 2 O 3 powders having different Eu 3+ /Tb 3+ concentrations were prepared by gel-combustion process using glycine as fuel (reducing agent) and corresponding metal nitrates as oxidant, followed by annealing at 600 and 1200°C. From XRD, SEM and TEM studies, it is inferred that for these samples, the extent of aggregation and average...
This paper summarizes a study on the influence of heat-treatment atmosphere in synthesis of nanosize MgAl 2 O 4 spinel powder employing sol–gel citrate route. Based on measurement of BET specific surface area, crystallite size, simultaneous thermal analysis, and microscopic observation, it was clarified that the argon atmosphere used for heat treatment of precursor reduced the particle...
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