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Synthesis and property evaluation of CuFeS2-x as earth-abundant and environmentally-friendly thermoelectric materials

CuFeS2 alloys composed of common and non-toxic elements were synthesized by combining mechanical alloying (MA) and spark plasma sintering (SPS). The CuFeS2 compound powders were synthesized directly by MA process, which were then spark plasma sintered to bulk materials. It was found that S content i... Full description

Journal Title: Journal of Alloys and Compounds Feb 25, 2013, Vol.551, pp.143-149
Main Author: Li, Jianhui
Other Authors: Tan, Qing , Li, Jing-Feng
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: © ProQuest LLC All rights reserved
ID: ISSN: 0925-8388
Link: http://search.proquest.com/docview/1349471748/?pq-origsite=primo
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title: Synthesis and property evaluation of CuFeS2-x as earth-abundant and environmentally-friendly thermoelectric materials
format: Article
creator:
  • Li, Jianhui
  • Tan, Qing
  • Li, Jing-Feng
subjects:
  • Alloys
  • Electrical Resistivity
  • Heat Transfer
  • Mechanical Alloying
  • Spark Plasma Sintering
  • Synthesis
  • Thermal Conductivity
  • Thermoelectricity
  • General and Nonclassified (MD)
ispartof: Journal of Alloys and Compounds, Feb 25, 2013, Vol.551, pp.143-149
description: CuFeS2 alloys composed of common and non-toxic elements were synthesized by combining mechanical alloying (MA) and spark plasma sintering (SPS). The CuFeS2 compound powders were synthesized directly by MA process, which were then spark plasma sintered to bulk materials. It was found that S content in the bulk samples became deficient depending on the fabrication conditions, and the ZT value improved slightly with decreasing S content. Under the optimized condition, CuFeS2-x (0
language: eng
source: © ProQuest LLC All rights reserved
identifier: ISSN: 0925-8388
fulltext: fulltext
issn:
  • 09258388
  • 0925-8388
url: Link


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titleSynthesis and property evaluation of CuFeS2-x as earth-abundant and environmentally-friendly thermoelectric materials
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subjectAlloys ; Electrical Resistivity ; Heat Transfer ; Mechanical Alloying ; Spark Plasma Sintering ; Synthesis ; Thermal Conductivity ; Thermoelectricity ; General and Nonclassified (MD)
descriptionCuFeS2 alloys composed of common and non-toxic elements were synthesized by combining mechanical alloying (MA) and spark plasma sintering (SPS). The CuFeS2 compound powders were synthesized directly by MA process, which were then spark plasma sintered to bulk materials. It was found that S content in the bulk samples became deficient depending on the fabrication conditions, and the ZT value improved slightly with decreasing S content. Under the optimized condition, CuFeS2-x (0 <= x <= 0.25) samples were prepared to investigate the effect of S deficiency on the thermoelectric properties. The electrical resistivity and thermal conductivity decreased gradually with decreasing S content, resulting in a maximum ZT value of 0.21 at 573 K for the sample CuFeS1.80.
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descriptionCuFeS2 alloys composed of common and non-toxic elements were synthesized by combining mechanical alloying (MA) and spark plasma sintering (SPS). The CuFeS2 compound powders were synthesized directly by MA process, which were then spark plasma sintered to bulk materials. It was found that S content in the bulk samples became deficient depending on the fabrication conditions, and the ZT value improved slightly with decreasing S content. Under the optimized condition, CuFeS2-x (0 <= x <= 0.25) samples were prepared to investigate the effect of S deficiency on the thermoelectric properties. The electrical resistivity and thermal conductivity decreased gradually with decreasing S content, resulting in a maximum ZT value of 0.21 at 573 K for the sample CuFeS1.80.
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abstractCuFeS2 alloys composed of common and non-toxic elements were synthesized by combining mechanical alloying (MA) and spark plasma sintering (SPS). The CuFeS2 compound powders were synthesized directly by MA process, which were then spark plasma sintered to bulk materials. It was found that S content in the bulk samples became deficient depending on the fabrication conditions, and the ZT value improved slightly with decreasing S content. Under the optimized condition, CuFeS2-x (0 <= x <= 0.25) samples were prepared to investigate the effect of S deficiency on the thermoelectric properties. The electrical resistivity and thermal conductivity decreased gradually with decreasing S content, resulting in a maximum ZT value of 0.21 at 573 K for the sample CuFeS1.80.
urlhttp://search.proquest.com/docview/1349471748/
date2013-02-25