Boron suboxide (chemical formula B 6 O) is a solid compound with a structure built of eight icosahedra at the apexes of the rhombohedral unit cell. Each icosahedron is composed of twelve boron atoms. Two oxygen atoms are located in the interstices along the …

Mar 1, 2022 · A review of reported data on the crystal structure, synthesis, and properties of boron suboxide B 6 O, which is a superhard material (hardness of up to 55 GPa, as measured in single crystals), and composites based on it is presented.

Jun 2, 2016 · Nanotwinned structures in superhard ceramics rhombohedral boron suboxide (R-B 6 O) have been examined using a combination of transmission electron microscopy (TEM) and quantum mechanics (QM).

Aug 8, 2016 · Here we show a new ground state of this compound at ambient conditions, Cmcm -B 6 O (β-B 6 O), which in all quantum-mechanical treatments that we tested comes out to be slightly but...

Jan 22, 1998 · Here we report the preparation, at high temperatures and pressures, of boron suboxide (B 6 O) in which the preferred form of the material is as macroscopic, near-perfect, regular icosahedra,...

Jan 1, 2019 · Boron-rich phases like boron carbide and boron suboxide (nominally B 6 O), with high hardness, low density and chemical inertness, are used as an excellent thermal conducting material, as abrasives and for other high-wear applications. In addition, their application as a nuclear material is especially significant.

Sep 13, 2022 · Boron suboxide (B6O) is a boron-rich compound derived from the α-rhombohedral boron lattice with extreme hardness and unusual semiconducting properties. In this work, density functional theory (DFT...

Oct 1, 2016 · In this work, we present a systematic study of B 6 O through first-principles calculations. The paper is organized as follows: in Section 2, the computational techniques adopted in this study are described in detail. Results and discussion of the structural, electronic, mechanical and optical properties are presented in Section 3.

Apr 6, 2015 · Boron suboxide (B6O), boron carbide (B4C), and related materials are superhard. However, they exhibit low fracture toughness, which limits their engineering applications. Here we show the shear def...

Boron suboxide (chemical formula B 6 O) is a solid compound with an eight-icosahedra structure at the apexes of the rhombohedral unit cell. Each icosahedron contains twelve boron atoms. There are two oxygen atoms in the interstices along the rhombohedral direction.