A joint team of US and Innovnano researchers produce superhard boron nitride using Innovnano’s EDS process

07th June 2018

In a recent paper published in the Journal of the American Chemical Society, researchers from Innovnano and Rutgers and Johns Hopkins universities in the US have used Innovnano’s unique Emulsion Detonation Synthesis (EDS) to produce metastable wurtzite phase boron nitride (w-BN). The findings demonstrate EDS’s potential in synthesizing metastable and high-density phases of BN ceramics.
Wurtzite phase boron nitride has many highly desirable properties for industry such as extreme hardness (equivalent to diamond) and wear resistance (greater than diamond), and also excellent thermal and chemical stability. However currently it is hard to synthesize, so these new findings represent a significant development.
EDS - a process involving a dynamic shock wave, combining high pressure and temperature along with rapid quenching – is the proprietary process behind the production of all Innovnano’s nanostructured ceramic powders. The team used EDS as a new way of synthesizing superhard boron nitride phases from hexagonal (h-BN) and amorphous (a-BN) BN. Further research to optimise the process through increasing the dynamic pressure and cooling rate and decreasing the particle size of the starting powder, is ongoing.
André de Albuquerque, Innovnano’s CEO said: “We recently reported data showing the exceptional properties of our 2%mol Yttria Stabilized Zirconia (2YSZ) powder produced by EDS, which include high flexural strength, ageing resistance and outstanding fracture toughness. This paper from researchers at Rutgers and Johns Hopkins further underlines how EDS can be used to synthesize tailored ceramic powders with highly desirable properties.”
To read the paper, örnek M, Hwang C, Xie KY, et al. Formation of metastable wurtzite phase boron nitride by emulsion detonation synthesis. J Am Ceram Soc. 2018;00:1–6, visit https://doi.org/10.1111/jace.15560