Materials Transactions Online

Materials Transactions, Vol.52 No.04 (2011) pp.719-727
© 2011 The Japan Institute of Metals

Reactions of Ti, V, Nb and Ta with N2 Gas at 2000°C under Concentrated Solar Beam in a Solar Furnace at PROMES-CNRS

Nobumitsu Shohoji1, Fernando Almeida Costa Oliveira1, Luís Guerra Rosa2, Gilles Peraudeau3, Bernard Granier3, Teresa Magalhães1 and Jorge Cruz Fernandes2

1LNEG-Laboratório Nacional de Energia e Geologia, LEN-Laboratório de Energia, Estrada do Paço do Lumiar, 22, 1649-038 Lisboa, Portugal
2IST-Instituto Superior Técnico, Departamento de Engenharia Mecânica, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
3PROMES-CNRS, Laboratoire Procédés, Matériaux et Energie Solaire, 7, rue du Four Solaire, Odeillo 66120, France

Reactions of d-group transition metals including Ti, V, Nb and Ta with N2 gas were investigated at target temperature of 2000°C under heating with concentrated solar beam at PROMES-CNRS in Odeillo (France). In the typical experimental setup using graphite crucible as the sample holder, synthesis of pure nitride with fcc (face centred cubic) structure was proved to be difficult on account of inevitable C2 radical plume with high carbon activity a(C) from the graphite components and the majority of reaction products were carbo-nitride. By insertion of Sky blue filter in the solar beam path before entering into the parabolic concentrator, C2 radical formation appeared to be efficiently suppressed and phases with high N content were synthesized. However, under conditions in which C2 radical plume yield was considerable, nitrogen content in the reaction products became suppressed and tetragonal Nb4N3 yielded in place of fcc NbN from Nb or N-deficit sub-nitride Ta2N in place of mono-nitride TaN formed.

(Received 2010/9/10; Accepted 2010/12/28; Published 2011/2/9)

Keywords: solar furnace, colour filter, carbo-nitride, titanium, vanadium, niobium, tantalum, tetragonal lattice distortion

PDF(Free)PDF (Free) Table of ContentsTable of Contents

REFERENCES

  1. J. Cruz Fernandes, L. Guerra Rosa, D. Martínez, J. Rodríguez and N. Shohoji: J. Ceram. Soc. Jpn. 106 (1998) 839–841.
  2. D. Martínez, J. Rodríguez, L. Guerra Rosa, J. Cruz Fernandes and N. Shohoji: J. de Physique IV (Symposium Series), Vol.9, Proceedings 3 (1999) pp.405–410.
  3. N. Shohoji, L. Guerra Rosa, J. Cruz Fernandes, D. Martínez and J. Rodríguez: Mater. Chem. Phys. 58 (1999) 172–176.
  4. L. Guerra Rosa, J. Cruz Fernandes, P. M. Amaral, D. Martínez, J. Rodríguez and N. Shohoji: Int. J. Refractory Met. Hard Mater. (Successor to Planseeberichte für Pulvermetallurgie), 17 (1999) 351–356.
  5. J. Cruz Fernandes, P. M. Amaral, L. Guerra Rosa, D. Martínez, J. Rodríguez and N. Shohoji: Int. J. Refractory Met. Hard Mater. 17 (1999) 437–443.
  6. N. Shohoji, P. M. Amaral, J. Cruz Fernandes, L. Guerra Rosa, D. Martínez and J. Rodríguez: Mater. Trans., JIM 41 (2000) 246–249.
  7. P. M. Amaral, J. Cruz Fernandes, L. Guerra Rosa, D. Martínez, J. Rodríguez and N. Shohoji: Int. J. Refractory Met. Hard Mater. 18 (2000) 47–53.
  8. J. Rodríguez, D. Martínez, L. Guerra Rosa, J. Cruz Fernandes, P. M. Amaral and N. Shohoji: J. Solar Energy Eng. 123 (2001) 109–116.
  9. J. Cruz Fernandes, C. Anjinho, P. M. Amaral, L. Guerra Rosa, J. Rodríguez, D. Martínez, F. Almeida Costa Oliveira and N. Shohoji: Mater. Chem. Phys. 77 (2002) 711–718.
  10. N. Shohoji, T. Magalhães, F. Almeida Costa Oliveira, L. Guerra Rosa, J. Cruz Fernandes, J. Rodríguez, I. Cañadas and D. Martínez: Mater. Trans. 51 (2010) 381–388.
  11. J. Cruz Fernandes, F. Almeida Costa Oliveira, B. Granier, J.-M. Badie, L. Guerra Rosa and N. Shohoji: Solar Energy 80 (2006) 1553–1560.
  12. F. Almeida Costa Oliveira, J. Cruz Fernandes, J.-M. Badie, B. Granier, L. Guerra Rosa and N. Shohoji: Int. J. Refractory Met. Hard Mater. 25 (2007) 101–106.
  13. N. Shohoji, J.-M. Badie, B. Granier, F. Almeida Costa Oliveira, J. Cruz Fernandes and L. Guerra Rosa: Int. J. Refractory Met. Hard Mater. 25 (2007) 220–225.
  14. F. Almeida Costa Oliveira, B. Granier, J.-M. Badie, J. Cruz Fernandes, L. Guerra Rosa and N. Shohoji: Int. J. Refractory Met. Hard Mater. 25 (2007) 351–357.
  15. S. Dias, F. Almeida Costa Oliveira, B. Granier, J.-M. Badie, J. Cruz Fernandes, L. Guerra Rosa and N. Shohoji: Mater. Trans. 48 (2007) 919–923.
  16. F. Almeida Costa Oliveira, B. Granier, J.-M. Badie, J. Cruz Fernandes, L. Guerra Rosa and N. Shohoji: Mater. Sci. Forum 587–588 (2008) 993–997.
  17. B. Granier, J.-M. Badie, F. Almeida Costa Oliveira, T. Magalhães, N. Shohoji, L. Guerra Rosa and J. Cruz Fernandes: Mater. Trans. 49 (2008) 2673–2678.
  18. B. Granier, N. Shohoji, F. Almeida Costa Oliveira, T. Magalhães, J. Cruz Fernandes and L. Guerra Rosa: Mater. Trans. 50 (2009) 2813–2819.
  19. Y. S. Touloukian and D. P. Dewitt: Thermoradiative Properties of Nonmetallic Solids, Thermodynamic Properties of Matter, Vol.8, (IFI/Plenum, New York and Washington, 1972) p.52.
  20. M. W. Chase, Jr. (Ed.): NIST-JANAF Thermochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph No.9, (Am. Chem. Soc. Am. Inst. Phys., 1998).
  21. J.-M. Badie, G. Flamant, T. Guillard and D. Laplaze: Chem. Phys. Lett. 358 (2002) 199–206.
  22. E. K. Storms: The Refractory Carbides, (Academic Press, New York, 1967).
  23. S. Nagakura, T. Kusunoki, F. Kakimoto and Y. Hirotsu: J. Appl. Cryst. 8 (1975) 65–66.
  24. W. Langauer and P. Ettmayer: Monatsh. Chemie 117 (1986) 713–719.
  25. W. Langauer and P. Ettmayer: Monatsh. Chemie 117 (1986) 275–286.
  26. H. B. Nie, S. Y. Xu, S. J. Wang, L. P. You, Z. Yang, C. K. Ong, J. Li and T. Y. F. Liew: Appl. Phys. A 73 (2001) 229–236.
  27. E. C. Ethridge, S. C. Erwin and W. E. Pickett: Phys. Rev. B 53 (1996) 12563–12565.
  28. R. Berger, W. Langauer and P. Ettmayer: J. Alloy. Compd. 259 (1997) L9–L13.
  29. N. Shohoji and T. Marcelo: J. Mater. Sci. Lett. 6 (1987) 1251–1253.


[JIM HOME] [JOURNAL ARCHIVES]

© 2011 The Japan Institute of Metals
Comments to us : editjt@jim.or.jp