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Thermodynamic Modelling of Boron Nitride Formation in Thermal Plasma

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Abstract:

The synthesis of solid BN in thermal plasma is investigated theoretically by computing the equilibrium composition of a gas mixture containing boron, nitrogen, hydrogen and argon. The calculations are done for the temperature range between 500 and 6000 K and the total pressure in the system of 1 bar. They are based on the fact that thermal plasma is in local thermodynamic equilibrium, which makes possible theoretical determination (by employing the Gibbs free energy data for the compounds present in the system) of its equilibrium composition. From the calculated compositions of investigated gas systems, the temperature zones with saturated and/or oversaturated vapour of B and B2N are determined and the formation mechanism of BN in solid state is proposed.

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Periodical:

Materials Science Forum (Volume 518)

Pages:

349-354

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.518.349

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Online since:

July 2006

Authors:

J. Radić-Perić

Keywords:

BN Synthesis, Synthesis in Plasma, Thermodynamics of BN

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] J. Heberlein: Pure Appl. Chem. Vol. 74 (2002), p.327.

Google Scholar

[2] Ž.G. Kostić, P. Lj. Stefanović and P.B. Pavlović: Proc. 10 th International Symp. on Plasma Chemistry, Bochum, Germany, Vol. 1 (1991), p.14.

Google Scholar

[3] J. Radić-Perić and N. Pantelić: J. Therm. Anal. Cal. Vol. 72 (2003), p.35.

Google Scholar

[4] S. Matsumoto, N. Nishida, K. Akashi and K. Sugai: J. Mater. Sci. Vol. 31 (1996), p.713.

Google Scholar

[5] M. Pal Chowdhury and A.K. Pal: J. Phys. D: Appl. Phys. Vol. 37 (2004), p.261.

Google Scholar

[6] P. Fauchais and E. Bourdin: J. Phys. Colloq. C3 Vol. 38 (1977), p. C3-111.

Google Scholar

[7] A.L. Suris: Termodinamika visokotemperaturnih processov (Spravočnik, Moskva· Metalurgija 1985).

Google Scholar

[8] W.B. White, S.M. Johnson and S.B. Dantzig: J. Chem. Phys. Vol. 28 (1958), p.751.

Google Scholar

[9] J. Radić-Perić and M. Perić: Spectrochim. Acta Vol. 35B (1980), p.297.

Google Scholar

[10] JANAF Thermodynamical Tables, Nat. Stand. Ref. Data Ser., US Nat. Bur. Stand. Vol. 37 (1971). 3 NIST-JANAF Thermochemical Tables, Journal of Physical and Chemical Reference Data, fourth ed. Malcolm W. Chase, Jr., (1999).

DOI: 10.1063/1.555992

Google Scholar

[11] J.L.M. Martin, J.P. Francois and R. Gijbels: J. Chem. Phys. Vol. 90 (1989), p.6469.

Google Scholar

[12] L. Andrews, P. Hassanzadeh, T.R. Burkholder and J.L.M. Martin: J. Chem. Phys. Vol. 98 (1993), p.6469.

Google Scholar