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Dynamic study of changes in structure and morphology during the heating and sintering of iron powder

Iyengar, Srinivasan LU (2002) In Powder Technology 124(April). p.40-44
Abstract
Dynamic changes in structure and morphology during the heating of iron powder to high temperatures have been studied in situ in an environmental scanning electron microscope (ESEM). The results have shown that the presence of lubricants leads to the formation of ferrite needles at about 500ºC. At higher temperatures, the recrystallization of alpha-iron, followed by the nucleation and growth of gamma-iron and finally the sintering process leading to the reduction of porosity and grain growth, were continuously monitored. This technique could be useful in the simulation and optimization of powder processes at elevated temperatures.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Hot stage, ESEM, Iron powder, Sintering, Microstructure
in
Powder Technology
volume
124
issue
April
pages
40 - 44
publisher
Elsevier
external identifiers
  • scopus:0037041227
ISSN
0032-5910
DOI
10.1016/S0032-5910(01)00478-8
language
English
LU publication?
yes
id
0a6c139f-6080-4885-a999-a28c19870100 (old id 786894)
date added to LUP
2008-02-11 08:22:43
date last changed
2017-01-01 07:11:56
@article{0a6c139f-6080-4885-a999-a28c19870100,
  abstract     = {Dynamic changes in structure and morphology during the heating of iron powder to high temperatures have been studied in situ in an environmental scanning electron microscope (ESEM). The results have shown that the presence of lubricants leads to the formation of ferrite needles at about 500ºC. At higher temperatures, the recrystallization of alpha-iron, followed by the nucleation and growth of gamma-iron and finally the sintering process leading to the reduction of porosity and grain growth, were continuously monitored. This technique could be useful in the simulation and optimization of powder processes at elevated temperatures.},
  author       = {Iyengar, Srinivasan},
  issn         = {0032-5910},
  keyword      = {Hot stage,ESEM,Iron powder,Sintering,Microstructure},
  language     = {eng},
  number       = {April},
  pages        = {40--44},
  publisher    = {Elsevier},
  series       = {Powder Technology},
  title        = {Dynamic study of changes in structure and morphology during the heating and sintering of iron powder},
  url          = {http://dx.doi.org/10.1016/S0032-5910(01)00478-8},
  volume       = {124},
  year         = {2002},
}