Hostname: page-component-54dcc4c588-sdd8f Total loading time: 0 Render date: 2025-10-05T05:26:42.456Z Has data issue: false hasContentIssue false
  • English
  • Français

Sol-Gel Processing and Structure Development of Lead TitanateParticles

Published online by Cambridge University Press:  21 February 2011

John S. Wright  and
Lorraine Falter Francis
John S. Wright
Affiliation:
Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. S.E., Minneapolis, MN 55455.
Lorraine Falter Francis
Affiliation:
Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. S.E., Minneapolis, MN 55455.
Get access

Abstract

Spherical particles of lead titanate, PbTiO3, (PT) were preparedfrom partially hydrolyzed alkoxide solutions modified with benzoic acid.Modified and aged alkoxide solutions were added dropwise to isopropylalcohol, forming particles (0.2 to 1.0 μm in diameter). FTIR spectroscopyresults demonstrate chelation of the PT alkoxide which prevented theformation of an extended gel network. Diffuse reflectance FTIR (DRIFT)spectra indicate the benzoate ligands are present until 450°C; TGA resultsshow significant weight loss at 450°C. PT particles crystallize into theperovskite phase at =450°C, as determined by DTA and XRD. The relatively lowcrystallization temperature may be due to the effect of benzoate ligands onamorphous structure and presence of internal surfaces.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 346: Symposium N – Better Ceramics Through Chemistry VI , 1994 , 797
Copyright
Copyright © Materials Research Society 1998

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.)

Article purchase

Temporarily unavailable

References

REFERENCES

1 Skinner, D.P., Newnham, R.E., and Cross, L.E., Mat. Res. Bull. 13, 599 (1978).Google Scholar
2 Das-Gupta, D.K. and Doughty, K., Thin Solid Films, 158 (1), 93 (1988).Google Scholar
3 See for example: Budd, K.D., Dey, S.K. and Payne, D.A., Brit. Ceram. Proc. 36, 107 (1985); G. Yi and M. Sayer, Ceram. Bull. 70 (7), 1173 (1991); T. Hayashi and J.B. Blum, J. Mat. Sci. 22 (7), 2655 (1987).Google Scholar
4 Budd, K.D., Dey, S.K. and Payne, D.A., Brit. Ceram. Proc. 36, 107 (1985).Google Scholar
5 Wright, J.S. and Francis, L.F., J. Mater. Res. 8 (7), 1712 (1993).Google Scholar
6 Doeuff, S., Henry, M., Sanchez, C. and Livage, J., J. of Non-Cryst. Solids 89, 206 (1987).Google Scholar
7 Schwartz, J.M., Francis, L.F. and Schmidt, L.D. in Ferroelectric thin Films III. edited by Meyers, E.R., Tuttle, B.A., Desu, S.B. and Larsen, P.K. (Mat. Res. Symp. Proc. 310, Boston, MA 1993) pp. 281-286.Google Scholar
8 Wright, J.S., Schwartz, J.M., Schmidt, L.D., and Francis, L.F. (unpublished).Google Scholar
9 Schwartz, R.W. and Payne, D.A. in Better Ceramics Through Chemistry III. edited by Brinker, C.J., Clark, D.E. and Ulrich, D.R. ( Mat. Res. Soc. Proc. 121, Reno, NV 1988) pp. 199-206.Google Scholar
10 Brinker, C.J., Keefer, K.D., Schaffer, D.W. and Ashley, C.S., J. Non-Cryst. Solids 48,47 (1982).Google Scholar