Synthesis of titanium boride nanoparticles and fabrication of flexible material for radiation shielding |
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Institution: | 1. Department of Nuclear and Energy Engineering, Jeju National University, Jeju, 63243, Republic of Korea;2. Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea;3. Department of Chemical Engineering, Wonkwang University, Iksan, 54538, Republic of Korea |
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Abstract: | A numerical simulation for a radio frequency (RF) thermal plasma torch was carried out to identify the temperature and velocity distributions and determine the optimal design of a plasma system based on the coil turn and torch inner diameter parameters. Then, the optimized conditions of five coil turns and a torch inner diameter of 64 mm were applied to synthesize titanium boride nanoparticles. The major crystal structure of the synthesized titanium boride nanoparticles was TiB2, with TiB as a minor phase and an average particle size of 42 nm. Subsequently, the gamma-ray shielding performance was analyzed using synthesized titanium boride nanoparticles. Flexible shielding materials were fabricated using a hydrogel to load the synthesized nanoparticles. The attenuation coefficient of the titanium boride nanoparticle flexible material was 0.238 cm−1, and the half-value layer was 2.91 cm. |
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Keywords: | Numerical simulation RF plasma Flexible material Titanium boride nanoparticles Radiation shielding |
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