Impact of the gamma and neutron attenuation behaviors on the functionally graded composite materials

Abstract

Gamma-ray and neutron shielding properties of the AA6082 + TiO2 (0-50wt.%) functionally graded composite materials (FGCMs) were investigated using the PSD software. The values of the mean free path (MFP), half-value layer (HVL), linear attenuation coefficients (LAC), mass attenuation coefficient (MAC), tenth-value layer (TVL), exposure buildup factors (EBF), effective atomic number (Zeff), effective conductivity (Ceff), and fast neutron removal cross-sections (FNRC) were found for the energy range between 0.015–15 MeV. The increase in the TiO2 content in the AA6082 composite material has raised the values of MAC and LAC. The calculations for the EBFs were carried out using the G-P fitting method for the energy range between 0.015–15 MeV and penetration depth of up to 40 mfp. The results revealed that HVL values ranged between 0.01-0.116 cm, TVL values ranged between 0.01-0.385 cm, FNRC values ranged between 7.918-10.017 cm-1, and Ceff values ranged between 5.67 x1010 and 9.85x1010 S/m. The AA6082 + TiO2 (50%) composite material was observed to provide the maximum photon and neutron shielding capacity since it offered the highest Zeff, MAC, and FNRC values, and the lowest HVL value. In terms of several aspects, the research is considered original. Besides contributing to several technologies including nanotechnology and space technologies, present research’s results may contribute to nuclear technology.

Investigation of radiation shielding by adding Al2O3 and SiO2 into the high-speed steel composites: comparative study

“…Materials with lower figures of MFP, HVL, and TVL provide higher radiation shielding potential. TVL, MFP and HVL values are computed using the following equations [48,49,52,53].…”

“…Today, metal matrix composites (MMCs) are used due to their superior features compared to most conventional materials. MMCs have good wear resistance, hardness, and the ability to withstand much higher temperatures compared to other composites and materials [36,48,49]. The improvement in the mechanical features of the composite material depends on the interfacial reaction between the reinforcement particles and the matrix, and the uniform distribution of the reinforcement phase in the matrix phase.…”

Microstructural and Radioactive Shielding Analyses of Alumix-231 and Alumix-231 Reinforced with B4C/SiC/Al2O3 Particles Produced through Hot Pressing

“…Radiation shielding is important in a variety of applications, such as nuclear power plants and space exploration. , It is designed to protect workers, soldiers, patients, and the general public from the harmful effects of radiation exposure while still allowing for the safe use of radiation in various applications. For instance, different levels of certain types of radiation, for example, used in medical imaging, can be beneficial for the diagnosis and treatment of illnesses. , Prevalent materials used for radiation shielding include lead, boron, concrete, bismuth, stainless steel, and water. − However, nowadays, composite materials have started to attract attention for radiation shielding studies since composite materials offer lightness thanks to their lower density while providing higher mechanical properties than concrete . In addition, the low melting temperature, production of poisonous substances, and lower protection capacity against high energy radiation highlight the use of composite materials instead of lead .…”

“…The effectiveness of radiation shielding depends on factors, such as the type and energy of the radiation, the thickness and density of the shielding material, and the distance between the radiation source and the object being shielded. Radiation shielding is important in a variety of applications, such as nuclear power plants and space exploration. , It is designed to protect workers, soldiers, patients, and the general public from the harmful effects of radiation exposure while still allowing for the safe use of radiation in various applications. For instance, different levels of certain types of radiation, for example, used in medical imaging, can be beneficial for the diagnosis and treatment of illnesses. , Prevalent materials used for radiation shielding include lead, boron, concrete, bismuth, stainless steel, and water. − However, nowadays, composite materials have started to attract attention for radiation shielding studies since composite materials offer lightness thanks to their lower density while providing higher mechanical properties than concrete .…”

A theoretical focus on nanoparticle attenuation capabilities for potential utilizations in radiation protect: TiO2-SiO2-Fe3O4-B4C-Al2O3

“…Their effective conclusion is that UPR/TiO 2 composites have the potential for use in radiation shielding applications. Gökmen et al aimed to investigate the gamma and neutron attenuation behaviors of functionally graded composite materials (FGCMs) and to evaluate their radiation shielding performance [32]. Their main focus was on the AA6082+TiO 2 (0-50 wt%) FGCMs and outputs showed that the addition of TiO2 improves the attenuation performance of the materials against gamma and neutron radiation, TiO 2 -reinforced FGCMs can be used as a preferred shielding material due to their higher gamma absorption cross-section and neutron shielding capacity.…”