Digitale Medien
s.l. ; Stafa-Zurich, Switzerland
Solid state phenomena
Vol. 144 (Sept. 2008), p. 140-144
ISSN:
1662-9779
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Physik
Notizen:
The formation of borides in an Al–3 wt.% B alloy produced from reaction betweenaluminium and boron oxide (B2O3) has been investigated. Melting and cooling experiments werecarried out to explore the growth characteristics of aluminium boride crystals. During heating upto1300 oC boron dissolved into molten aluminium and subsequently cooled to form solid aluminiumborides in the aluminium matrix. At room temperature boride particles was identified as AlB2.Although, AlB12 phase is the first phase to form directly from the Al-B liquid above 1000 oC whichtransforms to stable AlB2 crystals by a peritectic reaction during cooling. Scanning electronmicroscope (SEM) and X-ray diffraction (XRD) techniques were employed. Results showed thatthe shape and distribution of the borides are dependent on the cooling conditions of the liquid Al-Balloy
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/24/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.144.140.pdf
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