Temperature matters: annealing effects on silver protection and tungsten oxidation in W@Ag core-shell powder

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00643695" target="_blank" >RIV/68378271:_____/25:00643695 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/25:43933356

Výsledek na webu

<a href="https://hdl.handle.net/11104/0374545" target="_blank" >https://hdl.handle.net/11104/0374545</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21062/mft.2025.063" target="_blank" >10.21062/mft.2025.063</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Temperature matters: annealing effects on silver protection and tungsten oxidation in W@Ag core-shell powder

Popis výsledku v původním jazyce

Core-shell powders have been extensively studied due to their complex structure and wide range of applications. W@Ag core-shell powders are particularly interesting due to the synergy between the tungsten and silver, which can be beneficial in the electronics industry. However, knowledge of their thermal stability is limited, particularly concerning the impact of annealing temperatures on structural integrity and oxidation resistance. In this work, W@Ag core-shell powder was heat-treated in the temperature range 100–700 °C for 1 h in air. Investigation of the microstructural changes using scanning electron microscopy equipped with energy-dispersive X-ray spectroscopy showed that the limiting temperature is 500 °C, when the shell began to decompose and the core began to oxidize. Moreover, X-ray diffraction analysis determined that the phase composition of the thus heat-treated material consisted of approximately 50 % Ag and 50 % Ag2WO4.

Název v anglickém jazyce

Temperature matters: annealing effects on silver protection and tungsten oxidation in W@Ag core-shell powder

Popis výsledku anglicky

Core-shell powders have been extensively studied due to their complex structure and wide range of applications. W@Ag core-shell powders are particularly interesting due to the synergy between the tungsten and silver, which can be beneficial in the electronics industry. However, knowledge of their thermal stability is limited, particularly concerning the impact of annealing temperatures on structural integrity and oxidation resistance. In this work, W@Ag core-shell powder was heat-treated in the temperature range 100–700 °C for 1 h in air. Investigation of the microstructural changes using scanning electron microscopy equipped with energy-dispersive X-ray spectroscopy showed that the limiting temperature is 500 °C, when the shell began to decompose and the core began to oxidize. Moreover, X-ray diffraction analysis determined that the phase composition of the thus heat-treated material consisted of approximately 50 % Ag and 50 % Ag2WO4.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Manufacturing Technology

ISSN

1213-2489

e-ISSN

2787-9402

Svazek periodika

25

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

689-697

Kód UT WoS článku

001634779100013

EID výsledku v databázi Scopus

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