Kesan rawatan haba terhadap mikrostruktur katod berliang Ag 2O 3-Bi 2O 3 di atas substrat keluli kalis karat yang disediakan dengan kaedah pengecatan sluri

Translated title of the contribution: Effect of heat treatment on the microstructure of porous Ag 2O 3-Bi 2O 3 cathode on stainless steel substrates prepared by the slurry painting method

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The influence of thermal treatment on the microstructure of Ag 2O 3-Bi 2O 3 porous cathode on stainless steel substrates has been investigated. The composite cathode material has been successfully deposited on the substrates by the slurry painting method. The cathode was later thermally treated at different temperatures of 400, 500, 600, 700, 800 and 830°C for 1 h in the atmosphere. Thermal analysis of the dried slurry was conducted in order to determine the heating schedule for eliminating the organic components using thermogravimetry analysis (TGA) and differential scanning calorimetry (DSC). The TGA and DSC analyses confirmed that the organic component was fully decomposed below 418°C., whereas the formation of the composite cathode oxide phases took place at temperatures beyond 600°C. The microstructure of the thermally treated cathode was determined using scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. The SEM results showed that the grain size of the cathode increased with increase in temperature during thermal treatment. The X-ray diffraction (XRD) analyses confirmed the presence of °-Bi 2O 3 phase on the cathode. The Ag 2O 3-Bi 2O 3 cathode deposited on the stainless steel substrates was found to have a porosity of 53%, 51%, 39% and 28% after 1, 2, 3, and 4 coatings, respectively, and upon thermal treatment at 800°C for 1 h.

Original languageUndefined/Unknown
Pages (from-to)121-127
Number of pages7
JournalSains Malaysiana
Volume41
Issue number1
Publication statusPublished - Jan 2012

Fingerprint

stainless steels
heat treatment
cathodes
microstructure
thermogravimetry
heat measurement
scanning electron microscopy
scanning
composite materials
schedules
diffraction
temperature
thermal analysis
x rays
grain size
porosity
coatings
atmospheres
heating
oxides

Keywords

  • Bismuth oxide
  • Porous cathode
  • Slurry painting method

ASJC Scopus subject areas

  • General

Cite this

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title = "Kesan rawatan haba terhadap mikrostruktur katod berliang Ag 2O 3-Bi 2O 3 di atas substrat keluli kalis karat yang disediakan dengan kaedah pengecatan sluri",
abstract = "The influence of thermal treatment on the microstructure of Ag 2O 3-Bi 2O 3 porous cathode on stainless steel substrates has been investigated. The composite cathode material has been successfully deposited on the substrates by the slurry painting method. The cathode was later thermally treated at different temperatures of 400, 500, 600, 700, 800 and 830°C for 1 h in the atmosphere. Thermal analysis of the dried slurry was conducted in order to determine the heating schedule for eliminating the organic components using thermogravimetry analysis (TGA) and differential scanning calorimetry (DSC). The TGA and DSC analyses confirmed that the organic component was fully decomposed below 418°C., whereas the formation of the composite cathode oxide phases took place at temperatures beyond 600°C. The microstructure of the thermally treated cathode was determined using scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. The SEM results showed that the grain size of the cathode increased with increase in temperature during thermal treatment. The X-ray diffraction (XRD) analyses confirmed the presence of °-Bi 2O 3 phase on the cathode. The Ag 2O 3-Bi 2O 3 cathode deposited on the stainless steel substrates was found to have a porosity of 53{\%}, 51{\%}, 39{\%} and 28{\%} after 1, 2, 3, and 4 coatings, respectively, and upon thermal treatment at 800°C for 1 h.",
keywords = "Bismuth oxide, Porous cathode, Slurry painting method",
author = "Dedikarni Panuh and Andanastuti Muchtar and Norhamidi Muhamad and {Wan Daud}, {Wan Ramli}",
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journal = "Sains Malaysiana",
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AU - Panuh, Dedikarni

AU - Muchtar, Andanastuti

AU - Muhamad, Norhamidi

AU - Wan Daud, Wan Ramli

PY - 2012/1

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N2 - The influence of thermal treatment on the microstructure of Ag 2O 3-Bi 2O 3 porous cathode on stainless steel substrates has been investigated. The composite cathode material has been successfully deposited on the substrates by the slurry painting method. The cathode was later thermally treated at different temperatures of 400, 500, 600, 700, 800 and 830°C for 1 h in the atmosphere. Thermal analysis of the dried slurry was conducted in order to determine the heating schedule for eliminating the organic components using thermogravimetry analysis (TGA) and differential scanning calorimetry (DSC). The TGA and DSC analyses confirmed that the organic component was fully decomposed below 418°C., whereas the formation of the composite cathode oxide phases took place at temperatures beyond 600°C. The microstructure of the thermally treated cathode was determined using scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. The SEM results showed that the grain size of the cathode increased with increase in temperature during thermal treatment. The X-ray diffraction (XRD) analyses confirmed the presence of °-Bi 2O 3 phase on the cathode. The Ag 2O 3-Bi 2O 3 cathode deposited on the stainless steel substrates was found to have a porosity of 53%, 51%, 39% and 28% after 1, 2, 3, and 4 coatings, respectively, and upon thermal treatment at 800°C for 1 h.

AB - The influence of thermal treatment on the microstructure of Ag 2O 3-Bi 2O 3 porous cathode on stainless steel substrates has been investigated. The composite cathode material has been successfully deposited on the substrates by the slurry painting method. The cathode was later thermally treated at different temperatures of 400, 500, 600, 700, 800 and 830°C for 1 h in the atmosphere. Thermal analysis of the dried slurry was conducted in order to determine the heating schedule for eliminating the organic components using thermogravimetry analysis (TGA) and differential scanning calorimetry (DSC). The TGA and DSC analyses confirmed that the organic component was fully decomposed below 418°C., whereas the formation of the composite cathode oxide phases took place at temperatures beyond 600°C. The microstructure of the thermally treated cathode was determined using scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. The SEM results showed that the grain size of the cathode increased with increase in temperature during thermal treatment. The X-ray diffraction (XRD) analyses confirmed the presence of °-Bi 2O 3 phase on the cathode. The Ag 2O 3-Bi 2O 3 cathode deposited on the stainless steel substrates was found to have a porosity of 53%, 51%, 39% and 28% after 1, 2, 3, and 4 coatings, respectively, and upon thermal treatment at 800°C for 1 h.

KW - Bismuth oxide

KW - Porous cathode

KW - Slurry painting method

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