Synthesis and properties of iron silicides

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F25%3A10258366" target="_blank" >RIV/61989100:27360/25:10258366 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/25:43933346

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2238785425017879" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2238785425017879</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmrt.2025.07.129" target="_blank" >10.1016/j.jmrt.2025.07.129</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis and properties of iron silicides

Popis výsledku v původním jazyce

Composite materials based on aluminide matrix and hard silicide reinforcement are currently considered as potential tool materials. However, the reasonable design of the composites is limited by incomplete available information about the properties of suitable silicides. Therefore, this work focuses on the synthesis and characterization of iron silicides, which could be very promising also due to the low price of the constituents. The synthesis route for individual iron silicides (Fe3Si, FeSi, FeSi2) was investigated using a combination of mechanical alloying, spark plasma sintering, and homogenization annealing. In the case of Fe5Si3, which is thermodynamically stable at the temperatures above 825 degrees C, homogenization annealing was followed by water quenching. The synthesized iron silicides were characterized from the viewpoint of phase composition, microstructure, hardness and abrasive wear resistance. As the hardest silicide, Fe5Si3 was proved; however, it was only obtained in coexistence with other phases due to its low thermodynamic stability. Among the stable iron silicides, FeSi phase offers the best combination of hardness and tribological properties.

Název v anglickém jazyce

Synthesis and properties of iron silicides

Popis výsledku anglicky

Composite materials based on aluminide matrix and hard silicide reinforcement are currently considered as potential tool materials. However, the reasonable design of the composites is limited by incomplete available information about the properties of suitable silicides. Therefore, this work focuses on the synthesis and characterization of iron silicides, which could be very promising also due to the low price of the constituents. The synthesis route for individual iron silicides (Fe3Si, FeSi, FeSi2) was investigated using a combination of mechanical alloying, spark plasma sintering, and homogenization annealing. In the case of Fe5Si3, which is thermodynamically stable at the temperatures above 825 degrees C, homogenization annealing was followed by water quenching. The synthesized iron silicides were characterized from the viewpoint of phase composition, microstructure, hardness and abrasive wear resistance. As the hardest silicide, Fe5Si3 was proved; however, it was only obtained in coexistence with other phases due to its low thermodynamic stability. Among the stable iron silicides, FeSi phase offers the best combination of hardness and tribological properties.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20500 - Materials engineering

Projekt

<a href="/cs/project/GA23-05126S" target="_blank" >GA23-05126S: Slinuté silicidy jako budoucí nástrojové materiály</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Materials Research and Technology

ISSN

2238-7854

e-ISSN

2214-0697

Svazek periodika

38

Číslo periodika v rámci svazku

Srpen 2025

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

165-174

Kód UT WoS článku

001542359400002

EID výsledku v databázi Scopus

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