Location History:
- Yantai, CN (2023)
- Lanzhou, CN (2023 - 2024)
Company Filing History:
3 out of 4 
3 out of 3 
2 out of 8 
Years Active: 2023-2024
Title: Innovations of Yuan Yu in Silicon Nitride Ceramics
Introduction
Yuan Yu is a notable inventor based in Lanzhou, China, recognized for his contributions to the field of materials science, particularly in silicon nitride ceramics. With a total of three patents to his name, he has made significant advancements in the preparation methods and properties of silicon nitride ceramic sintered bodies.
Latest Patents
Yuan Yu's latest patents include innovative methods for creating silicon nitride ceramic sintered bodies. One of his patents discloses a silicon nitride ceramic sintered body that features a sintered bulk and a hard surface layer with a thickness ranging from 10 to 1000 μm. This hard surface layer is formed on the surface of the sintered bulk, which consists of a first silicon nitride crystalline phase and a first grain boundary phase. The hard surface layer contains a second silicon nitride crystalline phase and a second grain boundary phase, with specific compositions of tungsten and tungsten carbide particles. Another patent emphasizes the high purity of the silicon nitride crystalline phase, with a content of not less than 98 wt %, and a relative density of not less than 99%. The porosity is maintained at not larger than 1%, ensuring the material's integrity and performance.
Career Highlights
Throughout his career, Yuan Yu has worked with esteemed organizations such as the Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering and the Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing. His work in these institutions has allowed him to explore and develop advanced materials that have practical applications in various industries.
Collaborations
Yuan Yu has collaborated with notable colleagues, including Zhuhui Qiao and Lujie Wang. These partnerships have contributed to the advancement of research and innovation in the field of materials science.
Conclusion
Yuan Yu's contributions to the field of silicon nitride ceramics demonstrate his innovative spirit and dedication to advancing material technologies. His patents reflect a commitment to enhancing the properties and applications of ceramic materials, making a significant impact in the industry.