Enhancement mechanism of nanostructure forsterite formation rate by mechanical activation and ammonium chloride

Fariborz Tavangarian, Rahmatollah Emadi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The single-phase nanostructure forsterite powder was successfully synthesized by mechanical activation of talc and magnesium carbonate powder mixture followed by annealing in the presence and absence of ammonium chloride. Mechanical activation was used as an efficient method for the optimization of powder properties by means of combination and uttermost homogenization of the powder mass. Besides, the presence of chlorine ion affected the forsterite formation rate via producing smaller particle size during subsequent annealing which is very important in the case of diffusion-controlled reactions. The single-phase nanostructure forsterite powder with crystallite size of about 36 nm was successfully synthesized by 10 h mechanical activation with subsequent annealing at 1000°C for 1 h. While in the presence of chlorine ion, the single-phase nanostructure forsterite powder with crystallite size of about 20 nm could be obtained by 5 h of mechanical activation with subsequent annealing at 1000°C for 2 min.

Original languageEnglish (US)
Pages (from-to)131-138
Number of pages8
JournalNano
Volume6
Issue number2
DOIs
StatePublished - Apr 1 2011

Fingerprint

Ammonium Chloride
ammonium chlorides
forsterite
Powders
Nanostructures
Chemical activation
chlorides
activation
augmentation
Annealing
annealing
Chlorine
Crystallite size
chlorine
Ions
Talc
talc
homogenizing
Magnesium
magnesium

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

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abstract = "The single-phase nanostructure forsterite powder was successfully synthesized by mechanical activation of talc and magnesium carbonate powder mixture followed by annealing in the presence and absence of ammonium chloride. Mechanical activation was used as an efficient method for the optimization of powder properties by means of combination and uttermost homogenization of the powder mass. Besides, the presence of chlorine ion affected the forsterite formation rate via producing smaller particle size during subsequent annealing which is very important in the case of diffusion-controlled reactions. The single-phase nanostructure forsterite powder with crystallite size of about 36 nm was successfully synthesized by 10 h mechanical activation with subsequent annealing at 1000°C for 1 h. While in the presence of chlorine ion, the single-phase nanostructure forsterite powder with crystallite size of about 20 nm could be obtained by 5 h of mechanical activation with subsequent annealing at 1000°C for 2 min.",
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Enhancement mechanism of nanostructure forsterite formation rate by mechanical activation and ammonium chloride. / Tavangarian, Fariborz; Emadi, Rahmatollah.

In: Nano, Vol. 6, No. 2, 01.04.2011, p. 131-138.

Research output: Contribution to journalArticle

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