973 Plan Project Launch Meeting Held

Recently, the 973 project "High-performance acoustic functional materials research and its integration in high-end ultrasonic transducers" project kick-off meeting was held in Harbin. More than 30 people including the Basic Research Division of the Ministry of Science and Technology, experts of the 973 project consulting group, and project team members attended. meeting.

At the meeting, the project's chief scientist, Professor Cao Wenwu, reported on the project's research plan and working ideas. The responsible persons of each project reported on the work plan arrangement, and the participating experts conducted discussions and made suggestions. Ultrasonic equipment industry in China is large but the overall technology level is low. High-end products are monopolized by developed countries. The fundamental reason is that the core components of ultrasonic transducers are far from those of foreign countries and become the bottle that restricts the development of China's ultrasonic detection equipment industry. The project addresses the major national needs such as medical diagnosis, industrial non-destructive testing and underwater communication, and studies the factors influencing the giant piezoelectricity of relaxation ferroelectric single crystals, the regulation mechanism for the preparation of large-size relaxed ferroelectric single crystals, and the use of ultrasonic composite materials. Broadband sound transmission and absorption mechanisms, as well as the structural coordination gains of the integration of the three types of different acoustic functional materials, will lay the scientific foundation for the development of high-end ultrasound detection systems in China.