Abstract
The wettability and spreading kinetics of liquid AI on CVD-BN were investigated by the sessile drop method in a vacuum of about 1.1×10−3 Pa at 1070 to 1430 K. The wettability on the Al-BN system was different from that of the Al-SiC system reported in the literature. The wetting angle of Al-BN linearly decreased with an increase of temperature in high temperature range, and tended towards 15° at 1430 K. Complete wetting could be obtained at about 1470 K. The interface energy between liquid Al and the reaction layer and the surface energy of CVD-BN were calculated by means of Warren thermodynamics analysis. The surface of CVD-BN was examined by XRD. The results show that the surface of CVD-BN was chiefly composed of those low energy planes parallel to (001). According to the relationship of the spreading kinetics from the experiments, the apparent activation energy of the liquid Al spreading on the surface of CVD-BN was calculated. The result shows that the activation energy of interfacial reaction accounts for about 54% of the spread activation energy. The spread of liquid Al on CVD-BN was affected by the interfacial reaction, diffusion and liquid movement on the surface.
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References
J. J. Brennan andJ. G. Eberhart,J. Amer. Ceram. Soc. 51 (1968) 569.
V. Laurent, D. Chatain andN. Eustatho-Panlos,J. Mater. Sci. 22 (1987) 244.
J. T. Wang, M. S. Bian andM. C. Zeng,Acta Metall. Sinica 17 (1981) 359.
M. S. Bian, Q. Chen andJ. T. Wang,ibid. 24 (1988) B139.
W. KÖhler,Aluminium 51 (1975) 443.
J. C. Viala, P. Fortier, C. Bernard andJ. Bouix, “Developments in the Science and Technology of Composite Materials” (A. E. C. M., Bordeaux, 1985).
X. M. Xue, J. T. Wang andM. X. Quan,Mater. Sci. Eng. A132 (1991) 277.
X. M. Xue, J. T. Wang andF. M. Zhao,J. Mater. Sci. Lett. accepted for publication.
H. A. Wriedt,Bull. Alloy Phase Diagr. 7 (1986) 329.
R. Warren,J. Mater. Sci. 15 (1980) 2489.
G. Grimvall andS. Sjödin,Physica Scripta 10 (1974) 340.
S. K. Rhee,J. Amer. Ceram. Soc. 55 (1972) 300.
H. B. Gray, “Chemical Bonds” (Benjamin, New York, 1973).
E. D. Shukin, U. V. Goriukov, G. I. Denishikova, N. V. Lorchov andB. D. Summ,J. Colloid Russian 25 (1963) 108.
Q. Jia andX. Hu, in Proceedings of the 5th Symposium on the Physical Chemistry of Process Metallurgy, China Society Metals (Xian, 1984) 320.
J. V. Naidich,Prog. Surf. Membr. Sci. 55 (1981) 353.
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Xue, X.M., Wang, J.T. & Quan, M.X. Wettability and spreading kinetics of liquid aluminium on boron nitride. J Mater Sci 26, 6391–6395 (1991). https://doi.org/10.1007/BF02387819
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DOI: https://doi.org/10.1007/BF02387819