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Issue 9, 2012

Sol–gel prepared bismuth titanate for high temperature ultrasound transducers

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Abstract

Bismuth titanate (BIT) ceramic was prepared via a sol–gel technique and characterised for use as a high temperature ultrasound sensor. Transducers were prepared as both a pressed ceramic disc and a thick film screen printed on a stainless steel shim. Platinum paste was used as an electrode, and oil bath poling at 120 kV cm−1 and 140 °C was done to align dipoles within the samples. The thermal stability of the BIT with regards to the piezoelectric coefficient was examined. Through-thickness ultrasound measurements were made on aluminium and mild steel blocks, and also on a stainless steel pipe at temperatures of up to 230 °C.

Graphical abstract: Sol–gel prepared bismuth titanate for high temperature ultrasound transducers

Article information


Submitted
10 Feb 2012
Accepted
13 Feb 2012
First published
14 Feb 2012

RSC Adv., 2012,2, 3678-3683
Article type
Paper

Sol–gel prepared bismuth titanate for high temperature ultrasound transducers

S. Burrows, K. McAughey, R. Edwards and S. Dixon, RSC Adv., 2012, 2, 3678 DOI: 10.1039/C2RA20243C

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