Chem. J. Chinese Universities ›› 2026, Vol. 47 ›› Issue (3): 20250298.doi: 10.7503/cjcu20250298

• Articles: Inorganic Chemistry • Previous Articles     Next Articles

Preparation and Neutron and Gamma Radiation Shielding Properties of Submicron Spheres Eu2O3/B4C/HDPE Composite

ZHANG Jie1,2, HUO Zhipeng2(), ZHONG Guoqiang2   

  1. 1.Science Island Branch,Graduate School of University of Science and Technology of China,Hefei 230026,China
    2.Institute of Plasma Physics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China
  • Received:2025-10-15 Online:2026-03-10 Published:2025-11-24
  • Contact: HUO Zhipeng E-mail:zhipeng.huo@ipp.ac.cn
  • Supported by:
    the National Natural Science Foundation of China(12575224);the Anhui Province Ecological Environment Research Project, China(2023hb0017);the University Synergy Innovation Program of Anhui Province, China(GXXT-2022-001);the Programs of Institute of Energy, Hefei Comprehensive National Science Center, China(21KZL401);the Comprehensive Research Facility for Fusion Technology Program of China(2018-000052 73-01-001228)

Abstract:

Submicron spherical Eu2O3(Eu2O3-S) filler was synthesized by homogeneous precipitation method, and a comparative study was conducted with commercial Eu2O3(Eu2O3-C) filler with irregular morphology and PbO filler reinforced composite materials. XRD tests show that the synthesized Eu2O3 filler(Eu2O3-S) is of cubic crystal system, body-centered cubic lattice, Ia3¯(206) space group. SEM tests show that the synthetic Eu2O3-S filler has submicron spherical morphologies with uniform particle size, while the commercial Eu2O3-C filler has micron particles with irregular morphologies. Mechanical tensile tests and DSC tests show that the yield stress and tensile stress of the synthetic Eu2O3-S/B4C/HDPE(HDPE=high density polyetnylene) composite material are 21.3 MPa and 21.0 MPa, respectively, and the melting temperature is 119.7 ℃, all of which are higher than those of commercial Eu2O3-C/B4C/HDPE composite material. Neutron and gamma radiation shielding tests show that the Eu2O3-S filler with uniform particle size has the best dispersion in the HDPE matrix and can enhance the shielding rate of the composite material. The plate with a thickness of 1.5 cm has the best neutron shielding rate(43.66%), and its gamma shielding rate is 13.48%, which is close to the comparison composite material with Pb fillers.

Key words: Eu2O3, Composite, Neutron, Gammaray, Radiation shielding

CLC Number: 

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