Journal
RSC ADVANCES
Volume 2, Issue 9, Pages 3678-3683Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ra20243c
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Funding
- BP
- RWE npower
- Shell through the Research Centre for Non-Destructive Evaluation (RCNDE)
- Tenaris through the Research Centre for Non-Destructive Evaluation (RCNDE)
- EPSRC [EP/G042284/1]
- EPSRC [EP/G042284/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G042284/1] Funding Source: researchfish
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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 degrees 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 degrees C.
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