Materials discovery at high pressures
Pressure is a fundamental thermodynamic variable that can be used to control the properties
of materials, because it reduces interatomic distances and profoundly modifies electronic …
of materials, because it reduces interatomic distances and profoundly modifies electronic …
Microscopic theory of hardness and design of novel superhard crystals
Hardness can be defined microscopically as the combined resistance of chemical bonds in
a material to indentation. The current review presents three most popular microscopic …
a material to indentation. The current review presents three most popular microscopic …
Ultrahard nanotwinned cubic boron nitride
Cubic boron nitride (cBN) is a well known superhard material that has a wide range of
industrial applications. Nanostructuring of cBN is an effective way to improve its hardness by …
industrial applications. Nanostructuring of cBN is an effective way to improve its hardness by …
Advancements in the search for superhard ultra‐incompressible metal borides
Dense transition metal borides have recently been identified as superhard materials that
offer the possibility of ambient pressure synthesis compared to the conventional high …
offer the possibility of ambient pressure synthesis compared to the conventional high …
High-pressure studies with x-rays using diamond anvil cells
G Shen, HK Mao - Reports on progress in Physics, 2016 - iopscience.iop.org
Pressure profoundly alters all states of matter. The symbiotic development of ultrahigh-
pressure diamond anvil cells, to compress samples to sustainable multi-megabar pressures; …
pressure diamond anvil cells, to compress samples to sustainable multi-megabar pressures; …
Harder than diamond: superior indentation strength of wurtzite BN and lonsdaleite
Z Pan, H Sun, Y Zhang, C Chen - Physical review letters, 2009 - APS
Recent indentation experiments indicate that wurtzite BN (w-BN) exhibits surprisingly high
hardness that rivals that of diamond. Here we unveil a novel two-stage shear deformation …
hardness that rivals that of diamond. Here we unveil a novel two-stage shear deformation …
Effective mechanical properties of hexagonal boron nitride nanosheets
We propose an analytical formulation to extract from energy equivalence principles the
equivalent thickness and in-plane mechanical properties (tensile and shear rigidity, and …
equivalent thickness and in-plane mechanical properties (tensile and shear rigidity, and …
Creation of nanostuctures by extreme conditions: high-pressure synthesis of ultrahard nanocrystalline cubic boron nitride.
The synthesis of high-purity bulk nanostructured cubic boron nitride (cBN) at 20 GPa and
1770 K by direct phase transformation of graphite-like BN with an" ideal random layer" …
1770 K by direct phase transformation of graphite-like BN with an" ideal random layer" …
Recent development of boron nitride towards electronic applications
N Izyumskaya, DO Demchenko, S Das… - Advanced Electronic …, 2017 - Wiley Online Library
Boron nitride occurs in several polymorphs, among which cubic and hexagonal varieties
have been extensively studied over many years and have found numerous practical …
have been extensively studied over many years and have found numerous practical …
Recent search for new superhard materials: Go nano!
S Veprek - Journal of Vacuum Science & Technology A, 2013 - pubs.aip.org
High elastic moduli do not guarantee high hardness because upon finite shear electronic
instabilities often occur that result in transformation to softer phases. Therefore, the author …
instabilities often occur that result in transformation to softer phases. Therefore, the author …