Wettability and interfaces in B13O2/Al system.

• Autorzy: Sobczak N. , Morgiel J. , Kharlamow A. , Ksiazek M. , Radziwill W. , Baliga S.
• Konferencja: XV Physical Metallurgy and Materials Science Conference on Advanced Materials & Technologies AMT'98, Kraków-Krynica, Poland, 17-21 May, 1998
• Języki publikacji: PL

Abstrakty

EN

The wettability of B13O2 substrate by liquid aluminium was measured by the sessile drop method under vacuum at 1073-1273 K. A non-wetting to wetting transition was noted at about 1173 K. The oxy-redox reaction initiated at the B13O2 grain boundaries was found to be responsible for two phenomena in the Al/B13O2 system, i.e. wetting and infiltration of initially dense substrate by liquid Al. This reaction results in the formation of Al2O3 precipitates as well as AlB2 and AlB12 aluminium borides. The AlB12 crystallites are heavily faulted and contain numerous small inclusions of AlxOy or AlxOyBz type.

Słowa kluczowe

PL

bor; aluminium; krystalit; zwilżalność; granica faz; reakcja utleniania-redukcji

EN

boron; aluminium; crystallite; wettability; interface; redox reaction

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 1998
• Tom: R. XIX, nr 4
• Strony: 754--757
• Opis fizyczny: Bibliogr.4 poz., rys.

Twórcy

autor

Sobczak N.

• Foundry Research Institute, Cracow, Poland

autor

Morgiel J.

• Institute of Metallurgy and Materials Science, Polish Academy of Sciences Cracow, Poland

autor

Kharlamow A.

• Institute for Materials Science Problems, Ukrainian Academy of Sciences, Ukraine

autor

Ksiazek M.

• Foundry Research Institute, Cracow, Poland

autor

Radziwill W.

• Foundry Research Institute, Cracow, Poland

autor

Baliga S.

• Institute of Metallurgy and Materials Science, Polish Academy of Sciences Cracow, Poland

• Foundary Research Institute, Kraków

Bibliografia

• [1] Boron-rich solids, D. Emin, T.L. Aselage, A.C. Switendick, G.B. Morosin and C.L. Beckel (eds.) AIP Conference Proceedings 231(1990) AIP, New York.
• [2] A.I. Kharlamov, N. Sobczak, N.V. Kirilova, S.V. Loychenko and I. Kovalchuk, Abstracts NATO Advanced Study Insitute,,Advanced Light Alloys and Composites”, Zakopane, Poland, Sept. 5-15, 1997, pp. 27-28.
• [3] Y. Gao, J. Jia, R.E. Loechman and K.G. Ewsuk, J. Mater. Res., 10 (1995) 1216.
• [4] W.G. Fahrenholtz, K.G. Ewsuk, R.E. Loehman and A.P. Tomsia, in E.V. Berrera, F.D.S. Marquis, W.E. Frazier, S.G. Fishman, N.N.Thadhani, and Z.A. Munir (eds.) In Situ Reactions for Synthesis of Composites, Ceramics and Intermetallics, TMS, Warrendale, PA, (1995) pp. 99-109.