How to Determine Possible Interactions of Silicide and Aluminide in Preparation of Composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F24%3A10254805" target="_blank" >RIV/61989100:27360/24:10254805 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.journalmt.com/pdfs/mft/2024/01/17.pdf" target="_blank" >https://www.journalmt.com/pdfs/mft/2024/01/17.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21062/mft.2024.008" target="_blank" >10.21062/mft.2024.008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

How to Determine Possible Interactions of Silicide and Aluminide in Preparation of Composites

Popis výsledku v původním jazyce

Silicide - aluminide composites could be considered as potential tool materials, because of high wear resistance and thermal stability. Recently, the alloys based on iron aluminide and silicide were tested, but they found to be very brittle due to the occurrence of brittle Fe-Al- Si ternary phases. On the other hand, in TiAl- Ti5Si3 composite, no ternary phase was formed during sintering, even though it can be expected based on thermodynamics. Therefore, this paper aims on finding the way how to test potential interaction between silicide and aluminide phase during preparation of these composites on the example of the FeSi - NiAl composite. The approach, proposed in this work, deals with the pre-sintered iron silicide, which was surrounded by aluminide powder in the sintering die and spark plasma sintered again. After that this model sample was annealed under various conditions and the FeSi - NiAl interface was observed. The experiments proved that no chemical reaction between FeSi and NiAl phase occurs during sintering and thermal exposure at 1000 degrees C. The visible interfacial layer is just a result of mutual diffusion.

Název v anglickém jazyce

How to Determine Possible Interactions of Silicide and Aluminide in Preparation of Composites

Popis výsledku anglicky

Silicide - aluminide composites could be considered as potential tool materials, because of high wear resistance and thermal stability. Recently, the alloys based on iron aluminide and silicide were tested, but they found to be very brittle due to the occurrence of brittle Fe-Al- Si ternary phases. On the other hand, in TiAl- Ti5Si3 composite, no ternary phase was formed during sintering, even though it can be expected based on thermodynamics. Therefore, this paper aims on finding the way how to test potential interaction between silicide and aluminide phase during preparation of these composites on the example of the FeSi - NiAl composite. The approach, proposed in this work, deals with the pre-sintered iron silicide, which was surrounded by aluminide powder in the sintering die and spark plasma sintered again. After that this model sample was annealed under various conditions and the FeSi - NiAl interface was observed. The experiments proved that no chemical reaction between FeSi and NiAl phase occurs during sintering and thermal exposure at 1000 degrees C. The visible interfacial layer is just a result of mutual diffusion.

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

2024

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

24

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

104-109

Kód UT WoS článku

001193472400011

EID výsledku v databázi Scopus

2-s2.0-85188561395