Community Research and Development Information Service - CORDIS

FP5

PIRAMID Report Summary

Project ID: G5RD-CT-2001-00456
Funded under: FP5-GROWTH
Country: Switzerland

Curved tape cast films

The solid solutions of lead magnesium niobate [Pb(Mg1/3Nb2/3)O3], and lead titanate (PbTiO3) were used for optimisation of the curved tape processing.

The innovative feature of the result was related to the forming of the discs. Tape casting process and forming by uniaxial pressure were used to obtain curved discs with different thickness (50 to 630mm), diameters of 0.5 to 4 cm and radius of curvature between 6 and 10 mm. The range of compositions of (1-x) Pb (Mg1/3Nb2/3)-xPbTiO3 : with x=0.1-0.3-0.35 and 0.6 was investigated, and the processing of piezoelectric layers was optimised in each case.

The results are used for preparation of focused single-element transducer by directly using a curved piezoelectric disk. Moreover, for high frequency medical imaging applications (over 30 MHz), the thickness of the piezoelectric element must be lower than 100 micrometers.

Contact

Nava SETTER, (Director)
Tel.: +41-216932961
E-mail
Follow us on: RSS Facebook Twitter YouTube Managed by the EU Publications Office Top