Abstract
Background: Dysprosium oxide (Dy2O3) gathers a set of profitable properties with a
wide range of applications, including energy and astronomy. Particular characteristics directly influence
the formation and features of materials by colloidal processing. The main purpose of this
paper is to carry out a powder characterization of Dy2O3particles. 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 a cubic C-type structure following the
RE-polymorphic diagram, a mean particle size distribution with d50 of 389nm, and pynometric
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. In addition, the nanoparticles presented high stability
at pH 5.5 and a 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.
Keywords:
Dysprosium oxide, rare earths, lanthanides, nanoparticles, radiation dosimetry, and ceramic processing.
Graphical Abstract
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