Fabrication and Microstructure Evaluation of Oxide and Carbide Ceramic Coatings onto Heterogeneous Substrates by Solid-Vapor Reaction

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Silicon carbide (SiC) and alumina (Al2O3) have been synthesized on graphite and silica (SiO2) substrates, respectively, using a solid-vapor reaction (SVR). SiC and Al2O3 layers are synthesized on each substrate by reacting between SiO vapor and substrate (SiO (vapor) + 2 C (from graphite)), and between AlO vapor and substrate (2AlO (vapor) + 1/2O2 (from SiO2)). Both reaction processes were performed at 1400 °C for 9 hour at a heating rate of 5 °C/min under an Ar/H2 (160:40) flow of 200 sccm (ml/min). The pack composition for each case was adjusted with 1:1 mole ratio, which was used as precursors of the AlO and SiO vapors. The synthesized SiC layer consists of α-SiC and β-SiC, and its thickness is affected by the porosity of graphite. The Al2O3 top layer synthesized on SiO2 substrate is coarse and relatively porous, resulting in some defects.

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Periodical:

Advanced Materials Research (Volumes 29-30)

Edited by:

Deliang Zhang, Kim Pickering, Brian Gabbitas, Peng Cao, Alan Langdon, Rob Torrens and Johan Verbeek

Pages:

219-222

Citation:

J. H. Kang et al., "Fabrication and Microstructure Evaluation of Oxide and Carbide Ceramic Coatings onto Heterogeneous Substrates by Solid-Vapor Reaction", Advanced Materials Research, Vols. 29-30, pp. 219-222, 2007

Online since:

November 2007

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$38.00

[1] Q.S. Zhu, X.L. Qiu and C.W. Ma. Carbon, Vol. 37 (1999), p.1475.

[2] J.R. Strife and J.E. Sheehan. Ceram. Bull. Vol. 67 (1988), p.369.

[3] C.H. Tang and J. Guan. J. Nucl. Mater. Vol. 224 (1995), p.103.

[4] J.I. Kim, W.J. Kim, D.J. Choi, J.Y. Park, W.S. Ryu, Carbon Vol. 43 (2005) p.1749.

[5] O. Paccaud and A. Derré. Chem. Vapor. Dep. Vol. 6 (2000), p.41.

[6] Q. S. Zhu, X.L. Qiu and C.W. Ma. J. Nucl. Mater. Vol. 254 (1998), p.221.

[7] J.W. Fergus and W.L. Worrell. Carbon, Vol. 33 (1995), p.537.

[8] Q.G. Fu, H.J. Li, K.Z. Li, X.H. Shi, M. Huang, G.D. Sun and Y.L. Zhang. Mater. Sci. Eng. A Vol. 434 (2006), p.335.

[9] J.W. Kim, S.H. Park, H.C. Kim, Y.G. Jung, J.H. Lee and U.G. Paik. Key. Eng. Mater. Vol. 287 (2005), p.57.

[10] X. Nie, E.I. Meletis, J.C. Jiang, A. Leyland, A.L. Yerokhin and A. Matthews. Surf. Coat. Tech. Vol. 149 (2002), p.245.

[11] C.G. Ha, Y.G. Jung and U. Paik. J. Alloy. Compd. Vol. 306 (2000), p.292.

[12] J.W. Kim, S.S. Lee, B.G. Choi, C.Y. Jo, U. Paik and Y. G. Jung, J. Mater. Res. Vol. 20 (2005), p.409.

[13] M.J. Ledoux and P.H. Cuong. CaT. Tech. Vol. 5 (2001), p.230.

[14] M. Ohta and K. Moria: ISIJ Inter. Vol. 42 (2002), p.474 (A) (B) Si Al.

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