A glance at dysprosium oxide free powders
Current Materials Science(2022)
摘要
BACKGROUND: Dysprosium oxide (Dy2O3) gathers a set of profitable properties, whose wide range of applicability includes from energy to astronomy. Particle characteristics influence directly the formation and features of materials by colloidal processing. The main purpose of this paper is to carry out a powder characterization of Dy2O3 particles. The findings reported are worthwhile parameters to advance in the formulation of new smart materials for radiation dosimetry. METHODS: Dy2O3 powders were characterized by XRD, PCS, SEM, pynometric density (ρ), FTIR, ICP, EPR, and zeta potential (ζ). RESULTS: The powdered samples exhibited as main features, cubic C-type structure in accordance with the RE-polymorphic diagram, a mean particle size distribution with d50 of 389nm, and pynometry density of 7.94g.cm-3. The EPR spectra revealed three distinct peaks p1, p2, and p3, with the following g values 2.3121, 2.1565, and 2.1146, respectively. In addition, the nanoparticles presented high stability at pH 5.5 and ζ-value of |49.7|mV. CONCLUSION: The powder characterization of Dy2O3 powders was reported. The results achieved in this study may be considered worthwhile parameters to advance in the formulation of Dy2O3 based materials for radiation dosimetry.
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关键词
powders,oxide
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