Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17789
Title: Lead-free piezoelectric KNN-based pin transducers for structural monitoring applications
Authors: Lam, KH
Lin, DM
Ni, YQ 
Chan, HLW 
Keywords: Lead-free ceramics
Pin transducer
Structural monitoring
Issue Date: 2009
Source: Structural health monitoring, 2009, v. 8, no. 4, p. 283-289 How to cite?
Journal: Structural Health Monitoring 
Abstract: A 2.4mm diameter piezoelectric ceramic disc was used to construct a spring-loaded pin-type transducer for intelligent monitoring of systems. Two types of lead-free KNN-based ceramics (0.95K0.5Na0.5(Nb0.94Sb0.06)O3 - 0.05LiTaO3 + 1.25 mol% BaO and K0.5Na0.5NbO3 -0.75 mol% K5.4Cu1.3Ta10O29) were selected as a sensing element of the pin. The piezoelectric spring-loaded pins were mounted on the corners of the aluminum plate for the performance evaluation using a laser ultrasonic technique. The signals detected by transducers with different sensing elements including lead-based ceramics have been compared. The capability of impact detection of the lead-free transducers was shown to be comparable to that of the lead-based one. It is envisaged that lead-free piezoelectrics will become the important transducer materials in the next generation nondestructive evaluation technology.
URI: http://hdl.handle.net/10397/17789
ISSN: 1475-9217
DOI: 10.1177/1475921708102146
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

3
Last Week
0
Last month
0
Citations as of Jun 22, 2017

WEB OF SCIENCETM
Citations

4
Last Week
0
Last month
0
Citations as of Jun 22, 2017

Page view(s)

36
Last Week
3
Last month
Checked on Jun 25, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.