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Wyszukujesz frazę "HEAs" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Structural Characterization of Multicomponent High Entropy Alloys Processed by Mechanical Alloying
Autorzy:
Mohapatra, Ramesh Chandra
Barad, Bharat Bidhan
Panigrahi, Ajit
Powiązania:
https://bibliotekanauki.pl/articles/1066151.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Ball milling
HEAs
XRD
crystal structure
traditional alloy
Opis:
Today’s challenge is focused on the reserch and development of best quality and nobel property materials. So new alloys have been developed at the turn of the new millennium referred to as high entropy alloys. These alloys have been achieved through equiatomic substitution, by replacing individual components with multi-component equiatomic or near-equiatomic mixtures of chemically similar species. The present work includes the processing of Multi-component high entropy alloys (HEA) FeNiCoCrCu. The HEA is synthesized by ball milling, Milling hour varies from 0 hour to 40 hour. For the structural analysis X-Ray Diffraction (XRD) as characterization technique is adopted. XRD analyses shows that the intensity of the peaks corresponding to BCC and HCP crystal structures get reduced with increase in milling time. An affinity to FCC phase formation is observed with increase in milling time. The lattice parameter of individual component was determined viz. Bragg’s method.
Źródło:
World Scientific News; 2019, 131; 1-14
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of High Entropy Alloy as Catalyst for Azo Dye Degradation in Fenton Process
Autorzy:
Hassan, Nur Hudawiyah Abu
Nasir, Nisa Syukrina Mat
Rahman, S. N. A.
Irfan, Abd Rahim
Nordin, Norhuda Hidayah
Powiązania:
https://bibliotekanauki.pl/articles/2203739.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
azo dye
catalyst
fenton process
high entropy alloys
HEAs
Opis:
Azo dye is widely used in the textile industry since it is cost effective and simple to use. However, it becomes a continuous source of environmental pollution due to its carcinogenicity and toxicity. Various methods had been used to remove the azo dye in solution. One of the famous and frequently used is the Fenton process. The Fenton process is one of the advanced oxidation processes where iron catalysed hydrogen peroxide to generate hydroxyl radical. Treating azo dyes in solution requires a catalyst to enhance the process of degradation. Herein, high entropy alloys (HEAs) have been proposed as a catalytic material to enhance the performance of Fenton process for azo dye degradation. HEAs have been reported as a promising catalyst due to its high surface area. The higher the number of active sites, the higher the rate of azo dye degradation as more active sites are available for adsorption of azo dyes. The results have shown that HEAs can be used as a catalyst to fasten the Fenton reaction since the degradation time is proven to be shorter in the presence of HEAs. The method derived from the result of this study will contribute in treating azo dyes for wastewater management in the Fenton process.
Źródło:
Archives of Metallurgy and Materials; 2023, 68, 1; 209--213
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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