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Development of nanocrystalline Fe80Cr20 alloy using combination technique of ball milling and ultrasonic treatment for fuel cell interconnector

Solid Oxide Fuel Cell (SOFC) system consists of anode, cathode, electrolyte and interconnect. This research is focused on interconnect material. The objective of this study is to explore the high energy ball milling (milled) combined with ultrasonic treatment (UT) in obtaining smaller crystall...

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Main Author: Feriyanto, Dafit
Format: Thesis
Language:English
English
English
Published: 2014
Subjects:
TA Engineering (General). Civil engineering (General)
TA401-492 Materials of engineering and construction. Mechanics of materials
Online Access:http://eprints.uthm.edu.my/1459/1/24p%20DAFIT%20FERIYANTO.pdf
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http://eprints.uthm.edu.my/1459/3/DAFIT%20FERIYANTO%20WATERMARK.pdf
http://eprints.uthm.edu.my/1459/
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spelling my.uthm.eprints.14592021-10-03T07:26:15Z http://eprints.uthm.edu.my/1459/ Development of nanocrystalline Fe80Cr20 alloy using combination technique of ball milling and ultrasonic treatment for fuel cell interconnector Feriyanto, Dafit TA Engineering (General). Civil engineering (General) TA401-492 Materials of engineering and construction. Mechanics of materials Solid Oxide Fuel Cell (SOFC) system consists of anode, cathode, electrolyte and interconnect. This research is focused on interconnect material. The objective of this study is to explore the high energy ball milling (milled) combined with ultrasonic treatment (UT) in obtaining smaller crystallite size, finer surface morphology, higher thermal stability and more homogenous nanocrystalline Fe80Cr20 alloys. This condition was motivated by the previous research that some of the grain growth was observed in a high temperature. At first, this process was carried out by high energy ball milling with milling time of 60 h and later, the samples experienced the ultrasonic treatment with frequency of 35 kHz at various periods of 3 h, 3.5 h, 4 h, 4.5 h, and 5 h. Moreover, it was found that there are no works on these combination treatments (milled and UT). Characterization and analysis were carried out to all samples by using X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and Energy dispersive X-ray Diffraction (EDS), Thermo Gravimetric Analysis (TGA) and Particle Size Analyzer (PSA). The results showed that the combination treatment samples increases effectively to the solid solubility of Cr to Fe up to 62.1% and decreased the crystallite size up to 2.71 nm at milled and UT 4.5 h sample, these resulted and produces finer surface structure. From EDS results, the combination treatment samples are at suitable composition of 20.05 wt% Cr and 79.95 wt% Fe as compared to other samples. Higher thermal stability was observed on combination treatment sample at 1100 0C up to 12.7 mg or convenient to 63 wt%, 62 wt% and 25 wt% as compared to raw material, UT samples and milled 60 h sample, respectively. The particle size decreased up to 5.23 µm and particle size distribution of combination treatment relatively increased up to 89.57%. It can be concluded that the combination treatment at milled and UT 4.5 h is appropriate to achieve high solid solubility, nano crystallite size, fine surface morphology, high thermal stability and homogenous Fe80Cr20 alloys. 2014-12 Thesis NonPeerReviewed text en http://eprints.uthm.edu.my/1459/1/24p%20DAFIT%20FERIYANTO.pdf text en http://eprints.uthm.edu.my/1459/2/DAFIT%20FERIYANTO%20COPYRIGHT%20DECLARATION.pdf text en http://eprints.uthm.edu.my/1459/3/DAFIT%20FERIYANTO%20WATERMARK.pdf Feriyanto, Dafit (2014) Development of nanocrystalline Fe80Cr20 alloy using combination technique of ball milling and ultrasonic treatment for fuel cell interconnector. Masters thesis, Universiti Tun Hussein Onn Malaysia.
institution Universiti Tun Hussein Onn Malaysia
building UTHM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tun Hussein Onn Malaysia
content_source UTHM Institutional Repository
url_provider http://eprints.uthm.edu.my/
language English
English
English
topic TA Engineering (General). Civil engineering (General)
TA401-492 Materials of engineering and construction. Mechanics of materials
spellingShingle TA Engineering (General). Civil engineering (General)
TA401-492 Materials of engineering and construction. Mechanics of materials
Feriyanto, Dafit
Development of nanocrystalline Fe80Cr20 alloy using combination technique of ball milling and ultrasonic treatment for fuel cell interconnector
description Solid Oxide Fuel Cell (SOFC) system consists of anode, cathode, electrolyte and interconnect. This research is focused on interconnect material. The objective of this study is to explore the high energy ball milling (milled) combined with ultrasonic treatment (UT) in obtaining smaller crystallite size, finer surface morphology, higher thermal stability and more homogenous nanocrystalline Fe80Cr20 alloys. This condition was motivated by the previous research that some of the grain growth was observed in a high temperature. At first, this process was carried out by high energy ball milling with milling time of 60 h and later, the samples experienced the ultrasonic treatment with frequency of 35 kHz at various periods of 3 h, 3.5 h, 4 h, 4.5 h, and 5 h. Moreover, it was found that there are no works on these combination treatments (milled and UT). Characterization and analysis were carried out to all samples by using X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and Energy dispersive X-ray Diffraction (EDS), Thermo Gravimetric Analysis (TGA) and Particle Size Analyzer (PSA). The results showed that the combination treatment samples increases effectively to the solid solubility of Cr to Fe up to 62.1% and decreased the crystallite size up to 2.71 nm at milled and UT 4.5 h sample, these resulted and produces finer surface structure. From EDS results, the combination treatment samples are at suitable composition of 20.05 wt% Cr and 79.95 wt% Fe as compared to other samples. Higher thermal stability was observed on combination treatment sample at 1100 0C up to 12.7 mg or convenient to 63 wt%, 62 wt% and 25 wt% as compared to raw material, UT samples and milled 60 h sample, respectively. The particle size decreased up to 5.23 µm and particle size distribution of combination treatment relatively increased up to 89.57%. It can be concluded that the combination treatment at milled and UT 4.5 h is appropriate to achieve high solid solubility, nano crystallite size, fine surface morphology, high thermal stability and homogenous Fe80Cr20 alloys.
format Thesis
author Feriyanto, Dafit
author_facet Feriyanto, Dafit
author_sort Feriyanto, Dafit
title Development of nanocrystalline Fe80Cr20 alloy using combination technique of ball milling and ultrasonic treatment for fuel cell interconnector
title_short Development of nanocrystalline Fe80Cr20 alloy using combination technique of ball milling and ultrasonic treatment for fuel cell interconnector
title_full Development of nanocrystalline Fe80Cr20 alloy using combination technique of ball milling and ultrasonic treatment for fuel cell interconnector
title_fullStr Development of nanocrystalline Fe80Cr20 alloy using combination technique of ball milling and ultrasonic treatment for fuel cell interconnector
title_full_unstemmed Development of nanocrystalline Fe80Cr20 alloy using combination technique of ball milling and ultrasonic treatment for fuel cell interconnector
title_sort development of nanocrystalline fe80cr20 alloy using combination technique of ball milling and ultrasonic treatment for fuel cell interconnector
publishDate 2014
url http://eprints.uthm.edu.my/1459/1/24p%20DAFIT%20FERIYANTO.pdf
http://eprints.uthm.edu.my/1459/2/DAFIT%20FERIYANTO%20COPYRIGHT%20DECLARATION.pdf
http://eprints.uthm.edu.my/1459/3/DAFIT%20FERIYANTO%20WATERMARK.pdf
http://eprints.uthm.edu.my/1459/
_version_ 1738580862269652992
score 13.211869

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