Effect of the solid precursors on the formation of nanosized TiB x powders in RF thermal plasma

Szilvia Klébert, Anna Mária Keszler, I. Sajó, Eszter Drotár, I. Bertóti, Eszter Bódis, Péter Fazekas, Zoltán Károly, J. Szépvölgyi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Continuous synthesis of TiBx (x≈0.5-2) nanoparticles from various low cost solid precursors such as titanium and titanium dioxide admixed with boron and/or carbon in radiofrequency thermal plasma was studied. Feasibility of TiB2 formation was predicted by thermodynamic equilibrium calculations in the 500-5000 K temperature range. In all the investigated system high temperature reactions resulted in nanometer-sized TiBx powders with a mean size varying between 13 and 83 nm. The yield of particular runs ranged from 38% to 97%. Among the synthesized products in addition to TiBx, oxidized precursor residues were also found in smaller quantities. Although addition of carbon to the precursors could not completely prevent surface oxidation of boride particles, it contributed to the reduction of the mean particle size of the formed TiB2.

Original languageEnglish
Pages (from-to)3925-3931
Number of pages7
JournalCeramics International
Volume40
Issue number3
DOIs
Publication statusPublished - Apr 2014

Fingerprint

Plasma Gases
Powders
Carbon
Boron Compounds
Plasmas
Boron
Borides
Titanium
Titanium dioxide
Particle size
Thermodynamics
Nanoparticles
Oxidation
Temperature
Costs
Hot Temperature
titanium dioxide

Keywords

  • A. Powders: chemical preparation
  • A. Powders: gas phase reaction
  • A. RF plasma synthesis
  • D. Borides

ASJC Scopus subject areas

  • Ceramics and Composites
  • Process Chemistry and Technology
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Effect of the solid precursors on the formation of nanosized TiB x powders in RF thermal plasma. / Klébert, Szilvia; Mária Keszler, Anna; Sajó, I.; Drotár, Eszter; Bertóti, I.; Bódis, Eszter; Fazekas, Péter; Károly, Zoltán; Szépvölgyi, J.

In: Ceramics International, Vol. 40, No. 3, 04.2014, p. 3925-3931.

Research output: Contribution to journalArticle

Klébert, Szilvia ; Mária Keszler, Anna ; Sajó, I. ; Drotár, Eszter ; Bertóti, I. ; Bódis, Eszter ; Fazekas, Péter ; Károly, Zoltán ; Szépvölgyi, J. / Effect of the solid precursors on the formation of nanosized TiB x powders in RF thermal plasma. In: Ceramics International. 2014 ; Vol. 40, No. 3. pp. 3925-3931.
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AU - Sajó, I.

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AU - Bertóti, I.

AU - Bódis, Eszter

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