Wetting behaviour and mullite formation at the interface of inviscid melt-spun CaO-Al2O3 fibre-reinforced Al-Si alloy (4032) composite

Yun Mo Sung, Kyung Yol Yon, S. A. Dunn, J. A. Koutsky

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Inviscid melt-spun calcia-alumina fibre-reinforced aluminium-silicon alloy (4032) composites were produced using a melt-infiltration technique. Scanning electron microscopy, energy dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD) were used to investigate interfacial wetting and interphase formation, and identify the crystalline phase of the interphase of these composites. The composites processed at 700°C showed a good interfacial wetting and silicon accumulation at the interface. The composites processed at 927°C showed formation of an interphase region of about 10-20 μm thick, as well as excellent interfacial wetting. EDS analysis gave averaged compositions of this interphase region at 74 wt % Al and 26 wt % Si, which corresponds to the composition of mullite (3Al2O3 · 2SiO2). The formation of mullite at the interface was confirmed by XRD analysis.

Original languageEnglish
Pages (from-to)5583-5588
Number of pages6
JournalJournal of Materials Science
Volume29
Issue number21
DOIs
Publication statusPublished - 1994 Jan 1
Externally publishedYes

Fingerprint

Mullite
wetting
Wetting
composite materials
fibers
Fibers
Composite materials
Energy dispersive spectroscopy
Silicon alloys
silicon alloys
x rays
Aluminum Oxide
Silicon
infiltration
Chemical analysis
diffraction
Infiltration
aluminum alloys
X ray diffraction analysis
Aluminum alloys

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)

Cite this

Wetting behaviour and mullite formation at the interface of inviscid melt-spun CaO-Al2O3 fibre-reinforced Al-Si alloy (4032) composite. / Sung, Yun Mo; Yon, Kyung Yol; Dunn, S. A.; Koutsky, J. A.

In: Journal of Materials Science, Vol. 29, No. 21, 01.01.1994, p. 5583-5588.

Research output: Contribution to journalArticle

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