Jiang Qian

Title: Jiang Qian: Innovator in Diamond-Silicon Carbide Composites

Introduction

Jiang Qian is a prominent inventor based in Los Alamos, NM (US). He has made significant contributions to the field of materials science, particularly in the development of diamond-silicon carbide composites. With a total of 2 patents, his work has implications for various industrial applications.

Latest Patents

Jiang Qian's latest patents focus on the preparation of fully dense diamond-silicon carbide composites. These composites are created from a ball-milled mixture of microcrystalline diamond and amorphous silicon powder. The sintering process, conducted at pressures ranging from 5 to 8 GPa and temperatures between 1400K and 2300K, results in composites with high fracture toughness. Notably, a composite made at 5 GPa and 1673K exhibited a fracture toughness of 12 MPa·m. In contrast, the liquid infiltration of silicon into diamond powder at the same conditions yields a composite with higher hardness but lower fracture toughness. X-ray diffraction patterns and Raman spectra reveal that amorphous silicon partially transforms into nanocrystalline silicon at 5 GPa and 873K, while nanocrystalline silicon carbide forms at elevated temperatures.

Career Highlights

Jiang Qian is affiliated with the University of California, where he continues to advance research in materials science. His innovative approaches to composite materials have garnered attention in both academic and industrial circles.

Collaborations

Jiang collaborates with Yusheng Zhao, contributing to the advancement of their shared research interests in composite materials.

Conclusion

Jiang Qian's work in diamond-silicon carbide composites represents a significant advancement in materials science. His innovative patents and collaborations continue to influence the field and pave the way for future developments.