Core Viewpoint - Advanced composite materials are widely used in high-end equipment fields such as aerospace, automotive, new energy, and marine engineering due to their excellent properties like high strength, high modulus, high temperature resistance, and corrosion resistance. The interface between the reinforcement and matrix of composite materials is a key factor that determines the preparation process, comprehensive performance, and application scenarios of these materials. Recent years have seen a surge in research on composite material interfaces, covering various directions such as interface characterization and testing, simulation, interface regulation and application, and the development of functional interfaces. In-depth research on composite material interface issues is crucial for optimizing material performance and expanding application fields [1]. Event Overview - The "2025 Fourth Composite Material Interface Forum" will be held from July 16 to 18, 2025, in Shenzhen, Guangdong, organized by Harbin Institute of Technology (Shenzhen) and hosted by DT New Materials. The forum will focus on four major themes: strengthening and performance analysis of composite material interfaces, microscopic characterization and testing of composite material interfaces, design and development of multifunctional composite material interfaces, and optimization and recycling of green composite material interfaces. Additionally, there will be a Young Scholars Forum (best report selection) and an academic poster display to promote new theories, technologies, and achievements in the field of composite material interfaces [1][2]. Themes and Topics Strengthening and Performance Analysis of Composite Material Interfaces - Carbon fiber composite interface reinforcement technology and applications - Optimization of thermoplastic composite interfaces - Research and application of metal matrix composite interface performance - Toughening and application of ceramic matrix composite interfaces - Research on sizing agents to improve composite material interfaces - Surface/interface studies of polyimide fibers, aramid fibers, graphene composites [4][5] Microscopic Characterization and Testing of Composite Material Interfaces - Research on cracking and crack propagation in composite material interfaces - Microscopic analysis and damage detection of composite material interfaces - Molecular dynamics simulation of composite material interfaces - Reliability verification of composite material interface performance - Standardized testing of composite material interface performance - Mechanisms of composite material interface formation [5] Design and Development of Multifunctional Composite Material Interfaces - Damage and protection of composite material interfaces in extreme environments - Interface regulation and application of composite materials for aerospace - Damping performance of composite material interfaces - Performance research of multifunctional textile composite materials - Biomimetic technology for composite material interfaces - Research on moisture heat resistance and oxidation resistance of composite material interfaces [5] Optimization and Recycling of Green Composite Material Interfaces - Design of interface reinforcement for plant fiber composite materials - Compatibility research of bio-based composite material interfaces - Multiscale performance optimization of bio-based composites - Recycling and reuse of green composites [5] Forum Schedule - July 16: Registration - July 17: Opening ceremony, keynote reports on strengthening and performance analysis of composite material interfaces, roundtable discussion, welcome dinner - July 18: Keynote reports on multifunctional composite material interface design and development, optimization and recycling of green composite materials, closing ceremony [7][11] Registration Fees - Non-student representatives: ¥2,800 (online), ¥3,000 (on-site) - Students: ¥1,800 (online), ¥2,000 (on-site) - Registration fee includes material costs but excludes meal, accommodation, and transportation costs [8].