Page 196 - 《爆炸与冲击》2026年第3期
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第 46 卷    第 7 期                   爆    炸    与    冲    击                       Vol. 46, No. 7
                2026 年 7 月                    EXPLOSION AND SHOCK WAVES                           Jul., 2026

               DOI:10.11883/bzycj-2025-0039


                                适用于激光驱动方式的金属粉末

                                       冲击压缩特性实验技术                               *


                       贾    果,叶君建,王佩佩,谢志勇,涂昱淳,贺芝宇,程本源,孙今人,方智恒,黄秀光,傅思祖

                                    (中国工程物理研究院上海激光等离子体研究所,上海 201800)

                  摘要: 基于激光驱动方式建立了一种面向金属粉末的冲击压缩特性研究技术。通过靶型优化设计和实验验证,
               在实现冲击波加载特性调控的同时,解决了粉末材料无固定几何形状对测量带来的技术困难;在靶结构中采用局部镀
               膜的方法,解决了粘胶对石英标准材料厚度测量的影响,保证了数据的真实性。利用三维                               X  射线计算机断层成像技术
               表征实验用靶的装配质量,通过靶物理设计和改进装配方法获得了满足激光驱动金属粉末压缩特性研究的微型靶,实
               现了不同初始密度的研制。实验数据一致性较好,与独立计算的                       WEOS  模拟结果吻合度高且能有效地区分不同初始
               密度下的数据趋势。该实验技术可拓展到其他粉末颗粒的冲击压缩特性研究中。
                  关键词: 金属粉末;状态方程;激光驱动;冲击压缩;计算机断层表征
                  中图分类号: O383   国标学科代码: 13035   文献标志码: A

                     Experimental technology for impact compression characteristics of
                                  metal powder based on laser driving method


                      JIA Guo, YE Junjian, WANG Peipei, XIE Zhiyong, TU Yuchun, HE Zhiyu, CHENG Benyuan,
                                     SUN Jinren, FANG Zhiheng, HUANG Xiuguang, FU Sizu
                       (Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai 201800, China)

               Abstract:  In order to broaden the pressure range of the research on the physical parameters of powder materials, a high-
               pressure physical property research technology for metal powders was established based on laser driving method. Through
               target optimization design and experimental verification, while achieving the regulation of shock wave loading characteristics,
               the technical difficulties caused by the lack of fixed geometric shapes in powder materials for measurement have been solved;
               The use of local coating method in the target structure solves the influence of adhesive on the thickness measurement of quartz
               standard material, ensuring the authenticity of the data. By utilizing three-dimensional X-Ray computed tomography imaging
               technology to characterize the assembly quality of experimental targets, micro targets that meet the requirements of laser driven
               metal  powder  high-pressure  physical  property  diagnosis  were  obtained  through  improved  assembly  methods,  and  the
               development of targets with different initial densities was also achieved. While ensuring the accuracy of the data, the pressure
               range of the powder material is extended to more than 1 TPa. The experimental results show good data consistency, which is
               consistent with the independently calculated WEOS simulation results and can effectively distinguish the data trends under
               different initial densities. This experimental technique can be extended to the study of high-pressure physical properties of
               other powder particles.
               Keywords:  metal powder; equation of state; laser driving; shock compression; computed tomography characterization




                 *   收稿日期: 2025-02-14;修回日期: 2025-06-17
                   基金项目: 国家自然科学基金(12205281)
                   第一作者: 贾 果(1984- ),男,硕士,副研究员,jiaguo1998@163.com
                   通信作者: 孙今人(1974- ),女,硕士,副研究员,sunjinren2020@126.com


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