Potassium sodium niobate (KNN)-based lead-free piezoelectric ceramic coatings on steel structure by thermal spray method

Potassium sodium niobate (KNN)-based lead-free piezoelectric ceramic coatings on steel structure by thermal spray method
Title:
Potassium sodium niobate (KNN)-based lead-free piezoelectric ceramic coatings on steel structure by thermal spray method
Other Titles:
Journal of the American Ceramic Society
Publication Date:
04 June 2018
Citation:
Shuting Chen, Chee Kiang Ivan Tan, Sze Yu Tan, Shifeng Guo, Lei Zhang, and Kui Yao, “Potassium sodium niobate (KNN)-based lead-free piezoelectric ceramic coatings on steel structure by thermal spray method,” Journal of the American Ceramic Society, DOI: 10.1111/jace.15820, Vol 101, pp. 5524–5533, 2018.
Abstract:
For the first time, potassium sodium niobate (KNN)-based lead-free piezoelectric ceramic coating with strong piezoelectric response was fabricated on stainless steel substrates by thermal spray process, after introducing NiCrAlY and yttria-stabilized zirconia (YSZ) intermediate layers. A large effective piezoelectric coefficient (d33) of 125 pm/V was obtained with the thermal-sprayed KNN-based ceramic coating on the steel substrates. The mechanisms of improving the structure and enhancing the properties of the KNN-based piezoelectric ceramic coatings by introducing the intermediate layers were analyzed. Ultrasonic transducers were designed and fabricated from the KNN-based coatings directly formed on a steel plate structure, and the feasibility for generation and detection of ultrasonic waves for structural health monitoring using the thermal-sprayed lead-free piezoelectric ceramic coating was demonstrated.
License type:
PublisherCopyrights
Funding Info:
This project is partially supported by Singapore Maritime Institute under the Asset Integrity & Risk Management (AIM) R&D Programme, Project ID: SMI-2015-OF-01 (IMRE/15-9P1115), and under the Maritime Sustainability R&D Programme, Project ID: SMI-2015-MA-07 (IMRE/16-7P1125).
Description:
This is the peer reviewed version of the following article: Shuting Chen, Chee Kiang Ivan Tan, Sze Yu Tan, Shifeng Guo, Lei Zhang, and Kui Yao, “Potassium sodium niobate (KNN)-based lead-free piezoelectric ceramic coatings on steel structure by thermal spray method,” Journal of the American Ceramic Society, DOI: 10.1111/jace.15820, Vol 101, pp. 5524–5533, 2018., which has been published in final form at https://doi.org/10.1111/jace.15820. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
ISSN:
0002-7820
1551-2916
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