Synthesising novel phases of carbon by shear-induced phase transformations

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Carbon forms the hardest known solids and offers the opportunity for new materials with outstanding properties. The aim of this project is to establish a new technology for synthesising dense, diamond-like carbon materials without the need for high temperatures. The approach uses shear stress caused by non-hydrostatic compressions to drive phase changes in solids. Guided by modelling and using novel experimental techniques, this project seeks to understand and then exploit this remarkable phase change phenomenon. Expected outcomes include hard and tough coatings for high performance tools, impermeable encapsulations to enhance the longevity of bionic implants and a possible explanation for the mystery of deep earthquakes.