Fabrication of carbon fibre reinforced, aluminium matrix composite by potassium iodide (KI) - Potassium hexafluoro-titanate (K 2TiF 6) flux

K. L. Juhasz, P. Baumli, G. Kaptay

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Carbon fibres (CF) reinforced aluminium (Al) matrix composite material was fabricated using a special flux of potassium iodide (KI) with 10 weight% of potassium hexafluoro-titanate (K 2TiF 6) at 820°C under protective argon atmosphere. The fabrication was performed with no extra pressure or mixing applied. Liquid Al spontaneously penetrated the space between the carbon fibres (or single fibres were spontaneously transferred from molten salt into liquid Al), due to the perfect wettability between these phases and the corresponding action of the interfacial capillary force. Perfect wettability is ensured by the formation of a thin metallic titanium carbide layer at the fibres/aluminium interface. Metallic titanium appears in liquid Al due to its exchange reaction with the K 2TiF 6 content of the molten salt.

Original languageEnglish
Pages (from-to)310-314
Number of pages5
JournalMaterialwissenschaft und Werkstofftechnik
Volume43
Issue number4
DOIs
Publication statusPublished - Apr 2012

Fingerprint

Potassium iodide
potassium iodides
Potassium Iodide
carbon fibers
Aluminum
Carbon fibers
Potassium
potassium
Fluxes
aluminum
Fabrication
fabrication
composite materials
Composite materials
matrices
molten salts
wettability
Wetting
Molten materials
Liquids

Keywords

  • aluminium matrix
  • carbon fibre
  • composite
  • flux
  • molten salt

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

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abstract = "Carbon fibres (CF) reinforced aluminium (Al) matrix composite material was fabricated using a special flux of potassium iodide (KI) with 10 weight{\%} of potassium hexafluoro-titanate (K 2TiF 6) at 820°C under protective argon atmosphere. The fabrication was performed with no extra pressure or mixing applied. Liquid Al spontaneously penetrated the space between the carbon fibres (or single fibres were spontaneously transferred from molten salt into liquid Al), due to the perfect wettability between these phases and the corresponding action of the interfacial capillary force. Perfect wettability is ensured by the formation of a thin metallic titanium carbide layer at the fibres/aluminium interface. Metallic titanium appears in liquid Al due to its exchange reaction with the K 2TiF 6 content of the molten salt.",
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AU - Baumli, P.

AU - Kaptay, G.

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N2 - Carbon fibres (CF) reinforced aluminium (Al) matrix composite material was fabricated using a special flux of potassium iodide (KI) with 10 weight% of potassium hexafluoro-titanate (K 2TiF 6) at 820°C under protective argon atmosphere. The fabrication was performed with no extra pressure or mixing applied. Liquid Al spontaneously penetrated the space between the carbon fibres (or single fibres were spontaneously transferred from molten salt into liquid Al), due to the perfect wettability between these phases and the corresponding action of the interfacial capillary force. Perfect wettability is ensured by the formation of a thin metallic titanium carbide layer at the fibres/aluminium interface. Metallic titanium appears in liquid Al due to its exchange reaction with the K 2TiF 6 content of the molten salt.

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