A Critical Assessment of the Processing Parameters Yielding an Optimum Combination of Mechanical Properties in Cast Al-B4C Composites

Maurya, Pooja; Vaishnavi, Lakshmi; Sen, Indrani; Roy, Siddhartha

doi:10.1007/s12666-021-02220-x

Cited by 6 publications

(1 citation statement)

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“…Maurya et al studied the influence of various processing parameters on the strength, hardness and strain to failure of B 4 C particle reinforced Al-alloy matrix composites. When the content of B 4 C exceeded 10%, the strength and strain of B 4 C/Al to failure decreased due to particle agglomeration [ 10 ]. In addition, the commonly used concrete shielding materials mainly include boron-containing concrete and cement composites.…”

Section: Introductionmentioning

confidence: 99%

Influences of Modified Sm2O3 on Thermal Stability, Mechanical and Neutron Shielding Properties of Aminophenol Trifunctional Epoxy Resin

2022

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The requirements regarding the weight and capacity reduction of neutron shielding materials have become an urgent issue for advanced nuclear facilities and plants. An epoxy-based neutron shielding material with high-temperature stability and good neutron irradiation resistance was designed in this paper to solve the above issue. Aminophenol trifunctional epoxy resin (AFG-90H) was compounded with samarium oxide (Sm2O3) by means of an ultrasonic-assisted method and the compatibility of Sm2O3 with the AFG-90H matrix was improved by 3-aminopropyltriethoxysilane (APTES) surface modification. Fabricated Sm2O3-APTES/AFG-90H composites exhibited improved thermal stability, glass transition temperature and Young’s modulus with increased Sm2O3-APTES content. Neutronics calculation results show that the neutron permeability of 2 mm-thick 30 wt% Sm2O3-APTES/AFG-90H was 98.9% higher than that of the AFG-90H matrix under the irradiation of the thermal neutron source. The results show that the proper addition range of Sm2O3-APTES is between 20% and 25%. The Sm2O3-APTES/AFG-90H composite is a promising neutron shielding material for advanced nuclear system.

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Section: Introductionmentioning

confidence: 99%