Reaction-diffusion pathways for a programmable nanoscale texture of diamond-SiC composite

Vladimir Ya. Shevchenko; Aleksei I. Makogon; Maxim M. Sychov; Michael Nosonovsky; Ekaterina V. Skorb

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arXiv · 2210.10021

Reaction-diffusion pathways for a programmable nanoscale texture of diamond-SiC composite

Vladimir Ya. Shevchenko·Aleksei I. Makogon·Maxim M. Sychov·Michael Nosonovsky·Ekaterina V. Skorb

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Abstract

The diamond-SiC composite has a low density and the highest possible speed of sound among existing materials except for the diamond. The composite is synthesized by a complex exothermic chemical reaction between diamond powder and liquid Si. This makes it an ideal material for protection against impact loading. Experiments show that a system of patterns is formed at the diamond-SiC interface. Modeling of reaction-diffusion processes of composite synthesis proves a formation of ceramic materials with a regular (periodic) interconnected microstructure in a given system. Composite material with interconnected structures at the interface has very high mechanical properties and resistance to impact since its fractioning is intercrystallite.

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Vladimir Ya. Shevchenko, Aleksei I. Makogon, Maxim M. Sychov, Michael Nosonovsky, Ekaterina V. Skorb. 2022-10-18. Reaction-diffusion pathways for a programmable nanoscale texture of diamond-SiC composite. https://arxiv.org/abs/2210.10021

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