Therefore, the purpose of this work is to introduce a conductive high-entropy diboride particles into the copper matrix by casting technology to better match the matrix and avoid macro-segregation and micro-agglomeration.

Dec 19, 2023 · Two new high-entropy metal diborides (ZrTiVCr)B 2 and (ZrTiVCrMn)B 2 were successfully synthesized via a novel aluminum melt reaction method. The high-entropy diboride crystals have a hexagonal structure and possess high compositional uniformity.

Aug 23, 2023 · Herein, we present the entropy-driven synthesis of high-surface-area nano-metal diboride from the corresponding disulphide, and demonstrate the practical usefulness of boride ceramics, especially...

Apr 10, 2024 · In this study, guided by thermodynamics, a novel approach to synthesize Layer-structured hexagonal BN (h BN)-coated high entropy diboride powders in vacuum was developed, using metal salt Zr (NO 3) 4 ·5H 2 O, HfCl 4, NbCl 5, TaCl 5, C 16 H 36 O 4 Ti, boric acid, and sucrose as raw materials.

Oct 1, 2022 · A new high-entropy diboride (Hf 0.25 Zr 0.25 Ta 0.25 Sc 0.25)B 2 was designed to investigate the effect of introducing rare-earth metal diboride ScB 2 into high-entropy diborides on its structure and properties.

High-resolution transmission electron microscopy (HRTEM) revealed that the boron carbide phase can form coherent structures with the HEB, suggesting that the HEB grain surface provides nucleation sites and guides the grain growth for the boron carbide during the cooling process.

In this work, we report a novel synthesis method of high-entropy diboride microcrystals utilizing in-situ reactions in aluminum melt.

Plate-shaped precipitates of a β-WB-type phase with thickness of only one lattice constant could be characterised chemically by electron spectroscopic imaging (ESI) and their structure was identified by HRTEM.

Two new high-entropy metal diborides (ZrTiVCr)B2 and (ZrTiVCrMn)B2 were successfully synthesized via a novel aluminum melt reaction method. The high-entropy diboride crystals have a hexagonal...

Jan 2, 2022 · Zirconium diboride (ZrB 2) is considered as one of the most promising ultra‐high temperature materials for the applications in extreme environments. However, the difficulty in fabrication of ZrB 2 limits its industrial applications.