Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2025-01-02T20:27:09.916Z Has data issue: false hasContentIssue false
  • English
  • Français

Mechanism of combustion and phase formation in the BaO2–TiO2–organic compound system

Published online by Cambridge University Press:  31 January 2011

J. H. Lee ,
H. H. Nersisyan ,
M. L. Simkins  and
C. W. Won
J. H. Lee
Affiliation:
Rapidly Solidified Materials Research Center (RASOM), Chungnam National University, Yuseong, Daejeon 305-764, South Korea
H. H. Nersisyan
Affiliation:
Rapidly Solidified Materials Research Center (RASOM), Chungnam National University, Yuseong, Daejeon 305-764, South Korea
M. L. Simkins
Affiliation:
Rapidly Solidified Materials Research Center (RASOM), Chungnam National University, Yuseong, Daejeon 305-764, South Korea
C. W. Won
Affiliation:
Rapidly Solidified Materials Research Center (RASOM), Chungnam National University, Yuseong, Daejeon 305-764, South Korea
Get access

Abstract

The high-temperature combustion mechanism of the BaO2–TiO2–organic compound system [urea, CO(NH2)2; hexamethylenetetramine, C6H12N4] was investigated by the microthermocouple technique. The adiabatic combustion temperatures (Tad) and equilibrium compositions of the final products were calculated by the computer program THERMO. The distribution of the temperature T(x), rate of heat generation Φ(x), and degree of conversion η(x) in the combustion wave were determined. The relative sizes of the combustion zones, the leading stage of the reaction, the kinetic law of components interaction, and parameters (activation energy, pre-exponential factor, braking parameter) were then calculated. Through this method, the optimal conditions for tetragonal BaTiO3 powder synthesis with spherical form and particles size of 2–5 μm were found.

Type
Articles
Information
Journal of Materials Research , Volume 18 , Issue 8 , August 2003 , pp. 1926 - 1933
Copyright
Copyright © Materials Research Society 2003

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Dias, A., Buono, V.T.L., Ciminelli, V.S.T., and Moreira, R.L., J. Eur. Ceram. Soc. 19, 1027 (1999).CrossRefGoogle Scholar
Hyashi, T., Shinozaki, H., and Sasaki, K., J. Eur. Ceram. Soc. 19, 1011 (1999).CrossRefGoogle Scholar
Rae, A., Chu, M., and Ganine, V., Ceramic Transactions 100, 1 (1999).Google Scholar
Dutta, P.K., Asiaie, R., Akbar, S.A., and Zhu, W., Chem. Mater. 6, 1542 (1994).CrossRefGoogle Scholar
Lee, J.H., Kim, T.S., Won, C.W., and Kim, H.S., J. Mater. Sci. 35, 4271 (2000).CrossRefGoogle Scholar
Hennings, D., Klee, M., and Waser, R., Adv. Mater. 3, 334 (1991).CrossRefGoogle Scholar
Okiwa, M. and Tada, K., Appl. Phys. Lett. 29, 491 (1976).CrossRefGoogle Scholar
Kirby, K.W., Mater. Res. Bull. 23, 881 (1988).CrossRefGoogle Scholar
Merzhanov, A.G., J. Mater. Proc. Tech. 56, 222 (1996).CrossRefGoogle Scholar
Munir, Z.A. and Anselmi, U.-Tamburini, Mater. Sci. Reports 69, 277 (1989).CrossRefGoogle Scholar
Merzhanov, A.G., Popova, Y., and Semiletova, D.V., Problemy Teckhnologicheskogo Goreniya. Chernogolovka 2, 15 (1981).Google Scholar
Komarov, A.Y. and Parkin, I.P., Polyhedron 15, 1349 (1996).CrossRefGoogle Scholar
Anuradha, T.V., Ranganathan, S., Mimani, T., and Patil, K.C., Scripta Mater. 44, 2237 (2001).CrossRefGoogle Scholar
Nersisyan, H.H., Lee, J.H., and Won, C.W., J. Mater. Res. 17, 2859 (2002).CrossRefGoogle Scholar
Shiryaev, A.A., Int. J. SHS 4, 351 (1995).Google Scholar
Zenin, A.A., Merzhanov, A.G., and Nersisyan, H.H., Dokl. Akad. Nauk USSR 250, 880 (1980).Google Scholar
CRC Handbook of Chemistry and Physics, edited by Robert, C.W. (CRC Press, Boca Raton, FL, 1987).Google Scholar
Merzhanov, A.G., Russ. Chem. Bull. 46, 1 (1997).CrossRefGoogle Scholar