Development of a novel boron carbide-based coating material for reduction of activation in neutron application facilities

Tanaka, Seiichiro; Okuno, Koichi; Takeuchi, Kosei; Tabara, Takashi

doi:10.1016/j.apradiso.2021.110074

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…Smaller crystallites were formed as a result of increased nucleation [65]. As the quantity of Ba increased, additional Ba atoms consolidated into ZnO crystal, causing lattice deformation and consequently a rise in residual stress of well-established zinc oxide crystalline lattice [66,67]. It can be concluded that the concentration of Ba influenced the size of ZnO crystallites.…”

Section: Cosmentioning

confidence: 98%

Probing the impact of Ba on properties of ZnO at the nanoscale: optical, dielectric and antibacterial activity evolution

Kayani,

Farid,

Bashir

et al. 2024

Phys. Scr.

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The sol-gel dip coating technique was used to manufacture undoped and Barium doped zinc oxide thin films. Doping is extensively used to refine semiconductor properties. Without and with varying ratios of Ba 1-9 wt.% dopant, ZnO thin films have been manufactured. The effect of Ba on the dielectric, structural, antibacterial, optical and morphological characteristics of ZnO was investigated. The optical properties demonstrate that the bandgap of the pure ZnO thin film is higher than that of Ba-doped ZnO films, which is beneficial for improving solar cell performance. According to the XRD data, all films of ZnO have hexagonal wurtzite structures According to XRD structural analysis; the incorporation of Ba lowers the crystallinity of ZnO thin films by reducing the crystallite size. The Ba doping changes the surface roughness and morphology. The hopping process defines the dielectric characteristics that follow Koop’s theory as well as the Maxwell-Wagner model. A lower dielectric constant makes it ideal for high-frequency devices. These films exhibit ferromagnetism. Barium-doped zinc oxide photocatalyst could successfully decompose methylene blue dye by making it suitable for wastewater treatment.Ba doping effectively kills both gram-negative and gram-positive bacteria. They have antimicrobial applications in the food industry and biomedicine.

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Section: Cosmentioning

confidence: 98%

Probing the impact of Ba on properties of ZnO at the nanoscale: optical, dielectric and antibacterial activity evolution

Kayani,

Farid,

Bashir

et al. 2024

Phys. Scr.

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“…B has been known to have a relative atomic mass of 10.811 amu as it is an average of ∼20% of 10 B and ∼80% of 11 B isotopes. While the 11 B isotope does not transmute easily, the 10 B isotope has a high thermal neutron absorption crosssection, 123 readily absorbing neutrons to form 7 Li and a-particles (He 2+ ions). 124,125 Signicant amounts of He will hence be produced by the 10 B atoms, which effectively comprises ∼16% of all atoms in B 4 C. It is also for this reason that B 4 C has been used as a burnable neutron absorber in the control rods of nuclear ssion reactors, where its neutron absorption ability will degrade over time.…”

Section: Neutron Irradiation Effects: Transmutationmentioning

confidence: 99%

Thermoelectrics for nuclear fusion reactors: opportunities and challenges

Tan,

Liu,

Dong

et al. 2024

J. Mater. Chem. A

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“…60 Also, B 4 C holds the capability to absorb neutrons and is used for neutron radiation shielding applications. 61 The crystal structure of B 4 C is rhombohedral, which comprises icosahedra (12-atom) positioned at the unit cell corners. The linear chains (3-atom) connect the icosahedra along the rhombohedral axis (111).…”

Section: Boron Carbidementioning

confidence: 99%