开发可3D打印的无复合材料,用于混合光子和中子衰减
Shirin Arslonova1, Jurgita Laurikaitiene1, Diana Adliene1
1Department of Physics, Kaunas University of Technology, Studentu Str. 50, LT51368 Kaunas, Lithuania.
Polymers
|January 28, 2026
概括
研究人员开发了可3D打印的聚合物复合材料,使用,氧化,氧化加多和化进行有效的辐射屏蔽. 这些无材料为混合光子中子场提供了轻量化替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 核工程 核工程是指核工程.
- 添加剂制造 添加剂制造 添加剂制造
背景情况:
- 越来越多地使用辐射技术,需要先进的屏蔽材料.
- (Pb) 是有效的,但有毒和沉重,推动了对替代品的需求.
- 3D打印提供了定制的几何形状,但对混合光子中子场复合材料的研究是有限的.
研究的目的:
- 开发和评估可3D打印的聚合物复合材料,用于混合光子和中子辐射屏蔽.
- 评估各种填充材料和分层结构的性能.
- 为传统屏蔽提供轻量级,无替代品.
主要方法:
- 使用 (W),氧化 bismuth (Bi2O3),氧化 gadolinium (Gd2O3) 和化 (BN) 通过挤出制造ABS 基复合纤维.
- 在相同条件下对复合样本进行3D打印,以便进行一致的比较.
- 使用单层和多层配置的Pu-Be源对120kVp的光子衰减和中子衰减的评估.
主要成果:
- 30%的Bi2O3复合物显示光子的质量衰减系数为2.30cm2/g,约占的68%.
- 结合高Z和中子吸收填充剂的分层结构实现了高达~95%的诊断X射线衰减.
- 通过优化的分层复合材料设计,实现了~40%的中子衰减.
结论:
- 开发的3D打印复合材料提供了可打印性和双场屏蔽效能的有希望的平衡.
- 这些材料代表了一种可行的轻量级,无的选择,用于辐射屏蔽应用.
- 这项研究强调了增材制造对定制辐射保护解决方案的潜力.
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