"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

ULTRASOUND ROLE IN SOL-GEL PROCESSING OF PbTiO3 CERAMICS

I. Chilibon1,* , J. Marat-Mendes2, R. Igreja2, C. J. Dias2

Affiliation

  1. National Institute of Research and Development for Optoelectronics, INOE-2000, 077125, PO Box MG-5, Bucharest, Romania
  2. Department of Materials Science, Faculty of Science and Technology, New University of Lisbon, 2829-516 Caparica, Portugal

Abstract

Lead titanate (PbTiO3) powders in tetragonal form have been successfully prepared by sol gel method. The processing of lead titanate ceramics was followed up using techniques such as: X-ray diffraction (XRD), thermal analysis (DSC) and microscopy (SEM). Three lead titanate powders have been obtained in different conditions function of annealing temperature and ultrasound field. The sol-gel process may be improved by ultrasound gel irradiation in an optimum irradiation time, and implies the structure homogeneity of PT powders. The ceramic powder, which had ultrasound irradiated gel, exhibited higher Curie temperature than ceramic powders obtained in the typical sol-gel process..

Keywords

Sol-gel, Lead titanate, PbTiO3, PT, Ultrasound.

Submitted at: May 25, 2005
Accepted at: Sept. 22, 2005

Citation

I. Chilibon, J. Marat-Mendes, R. Igreja, C. J. Dias, ULTRASOUND ROLE IN SOL-GEL PROCESSING OF PbTiO3 CERAMICS, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 5, pp. 2727-2735 (2005)