TiB-Ti周期序构复合材料设计、制备及性能研究OA北大核心CSTPCD

High-performance structural material components are widely researched because of their curcial applications in aerospace,transportation and automotive,electronic information,metallurgy,and other fields.Traditional methods for enhancing the overall performance of structural material components mainly include improving intrinsic material properties and optimizing structural composite design.However,research on enhancing the intrinsic mechanical properties of single structural materials is reaching its limits.This study aims to explore a new paradigm for the development of high-performance structural composites by proposing the concept of periodic ordered structural materials and preparing the structural composites with improved overall properties through integrated sintering.The TiB-Ti functional unit with high hardness of ceramics and strong toughness of metal was structured through periodical sequencing,and high-performance TiB-Ti structural composites with different periodical sequencing modes were designed and prepared.On this basis,the mechanical properties of these structures were investigated,and their fracture modes were analyzed to understand how different ordering modes affect the overall properties of the materials.The results show that periodic ordered structure can improve the overall performance of materials by altering their macroscopic fracture modes and stress distribution properties.This new paradigm of research provides valuable insights and guidance for the structural design and performance breakthrough of other structural composites.Future research may focus on the exploration of the complexity of the periodic ordered structure modes,identifying potential application scenarios for these materials,and conducting additional performance testing studies.