Carbon nanotube fibers with dynamic strength up to 14 GPa

• DOI: 10.1126/science.adj1082
• Publication Date: 2024-06-20T17:59:48Z
• Authors: Xinshi Zhang; Xudong Lei; Xiangzheng Jia; Tongzhao Sun; Jiajun Luo; Shichen Xu; Lijun Li; Dan Yan; Yuanlong Shao; Zhenzhong Yong; Yongyi Zhang; Xianqian Wu; Enlai Gao; Muqiang Jian; Jin Zhang
• Keywords: Breakage

High dynamic strength is of fundamental importance for fibrous materials that are used in high-strain rate environments. Carbon nanotube fibers one the most promising candidates. Using a strategy to optimize hierarchical structures, we fabricated carbon with 14 gigapascals (GPa) and excellent energy absorption. The performance attributed simultaneous breakage individual nanotubes delocalization impact occurs during loading process; these behaviors due improvements interfacial interactions, alignment, densification therein. This work presents an effective utilize at macroscale provides fresh mechanism insights.