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Sol-Gel Processed BaTiO3

Published online by Cambridge University Press:  25 February 2011

Nelcy Della ,
Santina Mohallem  and
Michel André Aegerter
Nelcy Della
Affiliation:
Instituto de Fisica e Química de São Carlos, University of Sao Paulo, 13560 São Carlos (SP) Brasil.
Santina Mohallem
Affiliation:
Instituto de Fisica e Química de São Carlos, University of Sao Paulo, 13560 São Carlos (SP) Brasil.
Michel André Aegerter
Affiliation:
Instituto de Fisica e Química de São Carlos, University of Sao Paulo, 13560 São Carlos (SP) Brasil.
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Abstract

BaTiO. thin films deposited on pyrex supportsby dip-coating technique and powders have been prepared by the sol-gel route from sols containing a mixture of tetraisopropyl orthotitanate, iso propanol, barium acetate and glacial acetic acid. The thickness of the films is proportional to the first power of the withdrawal speed. Gelled sols have been dried hypercritically and by natural evaporation. Films and powders have been characterized by X-ray diffraction during their heat treatment. Tetragonal BaTiO structure is observed for T ≥ 600°C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 121: Symposium H – Better Ceramics Through Chemistry III , 1988 , 515
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

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