title: High-Pressure Design of Advanced BN-Based Materials.
abstract: The aim of the present review is to highlight the state of the art in high-pressure design of new advanced materials based on boron nitride. Recent experimental achievements on the governing phase transformation, nanostructuring and chemical synthesis in the systems containing boron nitride at high pressures and high temperatures are presented. All these developments allowed discovering new materials, e.g., ultrahard nanocrystalline cubic boron nitride (nano-cBN) with hardness comparable to diamond, and superhard boron subnitride B13N₂. Thermodynamic and kinetic aspects of high-pressure synthesis are described based on the data obtained by in situ and ex situ methods. Mechanical and thermal properties (hardness, thermoelastic equations of state, etc.) are discussed. New synthetic perspectives, combining both soft chemistry and extreme pressure-temperature conditions are considered.
authors: IMPMC, UPMC Sorbonne Universités, UMR CNRS 7590, MNHN, IRD UMR 206, Paris 75005, France. oleksandr.kurakevych@impmc.jussieu.fr.
authors: Oleksandr O
authors: OO
authors: Kurakevych
authors: LSPM-CNRS, Université Paris Nord, Villetaneuse 93430, France. vladimir.solozhenko@univ-paris13.fr.
authors: Vladimir L
authors: VL
authors: Solozhenko
mesh_terms: D001896:Boron Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D006244:Hardness; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry*; D010316:Particle Size; D011312:Pressure; D013499:Surface Properties; D013816:Thermodynamics
chemical_list: D001896:Boron Compounds; C017282:boron nitride
keywords: advanced materials; boron nitride; high pressure; phase diagram