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Synthesis of titanium boride nanoparticles and fabrication of flexible material for radiation shielding
Current Applied Physics ( IF 2.4 ) Pub Date : 2021-08-30 , DOI: 10.1016/j.cap.2021.08.009
Jeong-Hwan Oh 1 , Seok Hyeon Gwon 2 , Tae-Hee Kim 3 , Jeong-Yun Sun 2 , Sooseok Choi 1
Affiliation  

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.



中文翻译:

硼化钛纳米粒子的合成及柔性辐射屏蔽材料的制备

对射频 (RF) 热等离子体炬进行了数值模拟,以确定温度和速度分布,并根据线圈匝数和炬管内径参数确定等离子体系统的优化设计。然后,采用5圈线圈和64 mm火炬内径的优化条件合成硼化钛纳米粒子。合成的硼化钛纳米粒子的主要晶体结构为 TiB 2,以 TiB 作为次要相,平均粒径为 42 nm。随后,使用合成的硼化钛纳米粒子分析伽马射线屏蔽性能。使用水凝胶加载合成的纳米粒子来制造柔性屏蔽材料。硼化钛纳米颗粒柔性材料的衰减系数为0.238 cm -1,半值层为2.91 cm。

更新日期:2021-09-02
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