Nanoparticle synthesis of transition‐metal borides by pulsed discharge of compacted powder

In this study, boride nanoparticles were synthesized via a low‐cost and simple pulsed discharge of compacted crystalline and amorphous B micron‐sized powders for the first time. Borides of Ti, Mo, W, and Zr were chosen for synthesis experiments. The as‐synthesized powders were spherically shaped and...

Full description

Saved in:
Bibliographic Details
Published in:Journal of the American Ceramic Society 2021-09, Vol.104 (9), p.4351-4367
Main Authors: Nguyen, D. Hieu, Ngo, M. Chu, Tokoi, Yoshinori, Do, Thi‐Mai‐Dung, Nakayama, Tadachika, Suematsu, Hisayuki, Niihara, Koichi
Format: Article
Language:English
Subjects:
Borides
Chromium
Diffraction patterns
Discharge
Iron
Molybdenum
Nanoparticles
Nickel
Synthesis
Titanium
Zirconium
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this study, boride nanoparticles were synthesized via a low‐cost and simple pulsed discharge of compacted crystalline and amorphous B micron‐sized powders for the first time. Borides of Ti, Mo, W, and Zr were chosen for synthesis experiments. The as‐synthesized powders were spherically shaped and smaller than 100 nm. X‐ray diffraction patterns indicated the presence of several minor phases in each boride powder in addition to a single main‐phase boride. Specifically, the main phases were TiB2, MoB2, WB4, and ZrB2 for borides of Ti, Mo, W, and Zr, respectively. Energy‐dispersive spectroscopy (EDS) indicated the presence of B and metal in almost all particles of every sample. The observed particles usually exhibited a two‐part structure: a boride phase and B. Small amounts of C, Fe, Cr, and Ni were detected by EDS; however, the contents of Fe, Cr, and Ni were substantially reduced after improvements to the experimental setup.
ISSN:0002-7820
1551-2916
DOI:10.1111/jace.17780