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Article Dans Une Revue Journal of Applied Physics Année : 2019

High-pressure synthesis of superhard and ultrahard materials

Résumé

A brief overview on high-pressure synthesis of superhard and ultrahard materials is presented in this tutorial paper. Modern high-pressure chemistry represents a vast exciting area of research which can lead to new industrially important materials with exceptional mechanical properties. This field is only just beginning to realize its huge potential, and the image of "terra incognita" is not misused. We focus on three facets of this expanding research field by detailing: (i) the most promising chemical systems to explore (i.e. "where to search"); (ii) the various methodological strategies for exploring these systems (i.e. "how to explore"); (iii) the technological and conceptual tools to study the latter (i.e. "the research tools"). These three aspects that are crucial in this research are illustrated by examples of the recent results on high pressure-high temperature synthesis of novel super-and ultrahard phases (orthorhombic γ-B 28 , diamond-like BC 5 , rhombohedral B13N2 and cubic ternary B-C-N phases). Finally, some perspectives of this research area are briefly reviewed.
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Dates et versions

hal-02331183 , version 1 (24-10-2019)

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Yann Le Godec, Alexandre Courac, Vladimir Solozhenko. High-pressure synthesis of superhard and ultrahard materials. Journal of Applied Physics, 2019, 126 (15), pp.151102. ⟨10.1063/1.5111321⟩. ⟨hal-02331183⟩
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