稀土功能化MOF-808闪烁体的制备及其用于含能药柱高分辨X射线无损检测OA
Preparation of rare earth-functionalized MOF-808 scintillator and its application in high-resolution X-Ray nondestructive testing of energetic grains
含能材料药柱的内部质量直接影响武器系统的安全性与毁伤效能.成型工艺诱发的裂纹、组分偏析等缺陷难以通过传统无损检测(NDT)方法有效识别.X 射线成像技术因其强穿透性和密度敏感性成为理想手段,但现有闪烁体材料存在稳定性差或易辐照降解等问题.该文制备了稀土离子功能化的 Eu/Tb@MOF-808 闪烁体.结果显示,Tb@MOF-808 闪烁体薄膜的分辨率达12.5 LP/mm,Eu@MOF-808 分辨率达 7.1 LP/mm.该系统可清晰识别药柱内部宽度约300 μm 的贯穿性裂纹、金属颗粒分布及结构轮廓.该技术为含能药柱质量评估与在线筛查提供了高分辨率、本质安全的新型检测方案.
The internal quality of energetic material grains directly determines the safety and damage efficacy of weapon systems.Defects such as cracks and component segregation induced by molding processes are difficult to be effectively identified by conventional nondestructive testing(NDT)methods.X-Ray imaging is an ideal technique due to its strong penetration and density sensitivity,but existing scintillator materials suffer from poor stability or susceptibility to radiation degradation.Herein,rare earth ion-functionalized Eu/Tb@MOF-808 scintillators were prepared.The results show that the Tb@MOF-808 scintillator film achieves a resolution of 12.5 LP/mm,and Eu@MOF-808 reaches 7.1 LP/mm.The system can clearly identify penetrating cracks with a width of approximately 300 μm,metal particle distribution,and structural contours inside the grain.This technology provides a high-resolution,intrinsically safe solution for quality assessment and online screening of energetic grains.
娄悦;张绥焕;张文超;何晨露
南京理工大学 化学与化工学院,江苏 南京 210094南京理工大学 化学与化工学院,江苏 南京 210094南京理工大学 化学与化工学院,江苏 南京 210094南京理工大学 化学与化工学院,江苏 南京 210094
化学化工
药柱缺陷X射线成像MOF闪烁体稀土离子无损检测
grain defectsX-Ray imagingMOF scintillatorsrare-earth ionsnondestructive testing
《南京理工大学学报（自然科学版）》 2026 (4)
445-451,7
评论