Elusive super-hard B6C accessible through the laser-floating zone method
Resumen: Boron carbide is among the most promising ceramic materials nowadays: their mechanical properties are outstanding, and they open potential critical applications in near future. Since sinterability is the most critical drawback to this goal, innovative and competitive sintering procedures are attractive research topics in the science and technology of this carbide. This work reports the pioneer use of the laser-floating zone technique with this carbide. Crystallographic, microstructural and mechanical characterization of the so-prepared samples is carefully analysed. One unexpected output is the fabrication of a B6C composite when critical conditions of growth rate are adopted. Since this is one of the hardest materials in Nature and it is achievable only under extremely high pressures and temperatures in hot-pressing, the use of this technique offers a promising alternative for the fabrication. Hardness and elastic modulus of this material reached to 52¿GPa and 600¿GPa respectively, which is close to theoretical predictions reported in literature.
Idioma: Inglés
DOI: 10.1038/s41598-019-49985-2
Año: 2019
Publicado en: SCIENTIFIC REPORTS 9, 1 (2019), 13340 [10 pp.]
ISSN: 2045-2322

Factor impacto SCIMAGO:

Tipo y forma: Article (Published version)
Área (Departamento): Área Cienc.Mater. Ingen.Metal. (Dpto. Ciencia Tecnol.Mater.Fl.)

Creative Commons You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

Exportado de SIDERAL (2019-11-05-11:48:19)

Este artículo se encuentra en las siguientes colecciones:

 Record created 2019-11-05, last modified 2019-11-05

Versión publicada:
Rate this document:

Rate this document:
(Not yet reviewed)