为压电材料穿上“智能宇航服”，实现超高性能

Core Insights - Chinese scientists have successfully developed a groundbreaking "super piezoelectric ceramic" that enhances the piezoelectric coefficient (d33) by over 10 times, reaching 6850 picocoulombs per Newton, which is 10 to 30 times higher than traditional piezoelectric ceramics and surpasses all known single-crystal materials [2][4] Group 1: Breakthrough in Piezoelectric Materials - The research led by Ren Xiaobing has created a new paradigm for "active piezoelectric devices," allowing materials to operate stably in previously considered "performance forbidden zones" [2][4] - This advancement is expected to reshape the technology landscape in key areas such as high-end sensors, precision actuators, and next-generation smart interaction systems [2][4][8] Group 2: Historical Context and Challenges - For over 70 years, the piezoelectric coefficient of mainstream ceramic materials has stagnated between 200-600 picocoulombs per Newton, with no substantial breakthroughs [3][4] - Traditional piezoelectric materials, while effective, have limitations in terms of cost, stability, and mechanical fragility, hindering their widespread application [3][4] Group 3: Innovative Approaches - The research team proposed a novel approach to maintain performance near the theoretical limit by implementing precise temperature control and a small bias electric field to stabilize the material's internal dipoles [5][6] - This "active working mode" allows the piezoelectric devices to achieve stable outputs of d33 > 6000 picocoulombs per Newton across a wide temperature range from room temperature to 350°C [6][7] Group 4: Future Implications - The development of this "super piezoelectric ceramic" is likened to the role of chips in the information age or steel in the industrial age, potentially becoming a foundational component for various industries [8] - As these smart materials move towards application, they promise a more sensitive, precise, and intelligent technological future [8]