Production of spherical Mo and Mo-Si powders by spray drying of Si suspension in a water-soluble Mo precursor

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F24%3APU152325" target="_blank" >RIV/00216305:26620/24:PU152325 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.apt.2023.104313" target="_blank" >https://doi.org/10.1016/j.apt.2023.104313</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apt.2023.104313" target="_blank" >10.1016/j.apt.2023.104313</a>

Result language

angličtina

Original language name

Production of spherical Mo and Mo-Si powders by spray drying of Si suspension in a water-soluble Mo precursor

Original language description

The study focuses on the production of molybdenum (Mo) and molybdenum-silicon (Mo-Si) powders using the spray drying method, followed by calcination and reduction steps. Mo powder was produced from an aqueous solution of ammonium hexamolybdate (AHM), while composite Mo-Si powders were produced from the same solution with suspended submicrometric Si particles. The as-sprayed powders were amorphous and had spherical hollow-shell morphology. In the case of Mo-Si composite powders, the powders had uniformly embedded Si aggregates on the surface. The spherical hollow-shell morphology of the powders was retained after calcination and reduction treatments. The observed chemical transition was AHM -. MoO3 -. Mo for Mo powders and AHM-Si -. MoO3-Si -. Mo-Si for composite powders. Extrusion tests demonstrated the suitability of the produced powders for extrusion-based additive manufacturing. The powders were extrudable at low load, resulting in stable filaments that stack layer by layer without deformation. The extruded filaments were then subjected to debinding and sintering processes, reaching an intermediate state of densification. Filaments fabricated from composite Mo-Si powders confirmed the alloying of Mo grains with Si during the sintering process. (c) 2023 The Society of Powder Technology Japan. Published by Elsevier BV and The Society of Powder Technology Japan. All rights reserved.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20400 - Chemical engineering

Project

<a href="/en/project/LTC20068" target="_blank" >LTC20068: New materials for emerging energy technologies</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

ADVANCED POWDER TECHNOLOGY

ISSN

0921-8831

e-ISSN

1568-5527

Volume of the periodical

35

Issue of the periodical within the volume

1

Country of publishing house

JP - JAPAN

Number of pages

12

Pages from-to

„“-„“

UT code for WoS article

001140657300001

EID of the result in the Scopus database

2-s2.0-85180942045