Work

Heterostructured B-C particles: Bridging solid and mesoporous domains

Year: 2026

Type: article

Abstract: Microparticles comprising two macroscopically distinct domains with different compositions, structures, and porosity are attractive as multifunctional materials. B–C microparticles with dual-domain structures were synthesized via single-pulse laser heating of graphite–boron mixtures on chemical vapor deposition diamond. Vapor condensation forms Cassie–Baxter droplets featuring two distinct regions: a near-contact, mesoporous rapidly quenched (RQ) boron-doped onion-like carbon (OLC) network (∼4.7 at. % B) and a dense, quasi-equilibrium (QE) hypereutectic C–B4.5C mixture. Molecular dynamics simulations support the RQ structure. The results demonstrate that local supercooling suppresses boron diffusion, enabling the coexistence of mesoporous and dense domains within a single heterostructured microparticle.

Source: Journal of Applied Physics

DOI: 10.1063/5.0304129

Authors: A. Yu. Basharin, V. S. Dozhdikov, G. V. Belov, A. L. Vasiliev

Institutions: Joint Institute for High Temperatures, Bauman Moscow State Technical University, Moscow Institute of Physics and Technology, Kurchatov Institute

Language: English

Topic: Boron and Carbon Nanomaterials Research

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,500

Funder: Ministry of Science and Higher Education of the Russian Federation