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Synthesis of Cu3.21Bi4.79S9 bismuth chalcogenide by mechanical alloying

In this research, Cu3.21Bi4.79S9 was synthesized from Cu, Bi and S powders using ball milling. The effects of ball milling duration and the process control agent, i.e. ethanol, on the formation of Cu3.21Bi4.79S9 were investigated. The thermal stability of Cu3.21Bi4.79S9 was also studied using a Diff...

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Main Authors:	Barma, M.C., Long, B.D., Sabri, Mohd Faizul Mohd, Ramesh, Singh, Saidur, R., Said, Suhana Mohd, Kimura, K., Hai, N.H., Huy, T.D., Trung, T.B.
Format:	Article
Published:	Elsevier 2016
Subjects:	TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://eprints.um.edu.my/18466/ https://doi.org/10.1016/j.powtec.2016.03.002
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spelling	my.um.eprints.184662019-10-25T06:28:46Z http://eprints.um.edu.my/18466/ Synthesis of Cu3.21Bi4.79S9 bismuth chalcogenide by mechanical alloying Barma, M.C. Long, B.D. Sabri, Mohd Faizul Mohd Ramesh, Singh Saidur, R. Said, Suhana Mohd Kimura, K. Hai, N.H. Huy, T.D. Trung, T.B. TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering In this research, Cu3.21Bi4.79S9 was synthesized from Cu, Bi and S powders using ball milling. The effects of ball milling duration and the process control agent, i.e. ethanol, on the formation of Cu3.21Bi4.79S9 were investigated. The thermal stability of Cu3.21Bi4.79S9 was also studied using a Differential Scanning Calorimeter (DSC) in combination with X-ray diffraction (XRD) analysis. It was observed that the addition of ethanol shows a significant effect on the refinement of the particle size of the milled powder. However, ethanol showed a negative effect on the formation of single phase Cu3.21Bi4.79S9 during ball milling. Cu3.21Bi4.79S9 was found in the milled powder after milling for 5 h without using ethanol, whilst the presence of secondary phases such as Bi2S3 and Cu2S were also detected. All these secondary phases were disappeared after milling for 15 h. Prolonged milling duration did not produce any change in the phases. Minimum particle size of the milled powder was achieved around 0.251 μm after milling for 25 h. The XRD and DSC results showed that Cu3.21Bi4.79S9 is thermally stable up to 230 °C. Elsevier 2016 Article PeerReviewed Barma, M.C. and Long, B.D. and Sabri, Mohd Faizul Mohd and Ramesh, Singh and Saidur, R. and Said, Suhana Mohd and Kimura, K. and Hai, N.H. and Huy, T.D. and Trung, T.B. (2016) Synthesis of Cu3.21Bi4.79S9 bismuth chalcogenide by mechanical alloying. Powder Technology, 294. pp. 348-352. ISSN 0032-5910 https://doi.org/10.1016/j.powtec.2016.03.002 doi:10.1016/j.powtec.2016.03.002
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering Barma, M.C. Long, B.D. Sabri, Mohd Faizul Mohd Ramesh, Singh Saidur, R. Said, Suhana Mohd Kimura, K. Hai, N.H. Huy, T.D. Trung, T.B. Synthesis of Cu3.21Bi4.79S9 bismuth chalcogenide by mechanical alloying
description	In this research, Cu3.21Bi4.79S9 was synthesized from Cu, Bi and S powders using ball milling. The effects of ball milling duration and the process control agent, i.e. ethanol, on the formation of Cu3.21Bi4.79S9 were investigated. The thermal stability of Cu3.21Bi4.79S9 was also studied using a Differential Scanning Calorimeter (DSC) in combination with X-ray diffraction (XRD) analysis. It was observed that the addition of ethanol shows a significant effect on the refinement of the particle size of the milled powder. However, ethanol showed a negative effect on the formation of single phase Cu3.21Bi4.79S9 during ball milling. Cu3.21Bi4.79S9 was found in the milled powder after milling for 5 h without using ethanol, whilst the presence of secondary phases such as Bi2S3 and Cu2S were also detected. All these secondary phases were disappeared after milling for 15 h. Prolonged milling duration did not produce any change in the phases. Minimum particle size of the milled powder was achieved around 0.251 μm after milling for 25 h. The XRD and DSC results showed that Cu3.21Bi4.79S9 is thermally stable up to 230 °C.
format	Article
author	Barma, M.C. Long, B.D. Sabri, Mohd Faizul Mohd Ramesh, Singh Saidur, R. Said, Suhana Mohd Kimura, K. Hai, N.H. Huy, T.D. Trung, T.B.
author_facet	Barma, M.C. Long, B.D. Sabri, Mohd Faizul Mohd Ramesh, Singh Saidur, R. Said, Suhana Mohd Kimura, K. Hai, N.H. Huy, T.D. Trung, T.B.
author_sort	Barma, M.C.
title	Synthesis of Cu3.21Bi4.79S9 bismuth chalcogenide by mechanical alloying
title_short	Synthesis of Cu3.21Bi4.79S9 bismuth chalcogenide by mechanical alloying
title_full	Synthesis of Cu3.21Bi4.79S9 bismuth chalcogenide by mechanical alloying
title_fullStr	Synthesis of Cu3.21Bi4.79S9 bismuth chalcogenide by mechanical alloying
title_full_unstemmed	Synthesis of Cu3.21Bi4.79S9 bismuth chalcogenide by mechanical alloying
title_sort	synthesis of cu3.21bi4.79s9 bismuth chalcogenide by mechanical alloying
publisher	Elsevier
publishDate	2016
url	http://eprints.um.edu.my/18466/ https://doi.org/10.1016/j.powtec.2016.03.002
_version_	1648736152053612544
score	13.211869

Synthesis of Cu3.21Bi4.79S9 bismuth chalcogenide by mechanical alloying

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