Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15992
Title: Lead-free BNBT-6 piezoelectric ceramic fibre/epoxy 1-3 composites for ultrasonic transducer applications
Authors: Wang, DY
Li, K
Chan, HLW 
Issue Date: 2005
Publisher: Springer
Source: Applied physics. A, Materials science & processing, 2005, v. 80, no. 7, p. 1531-1534 How to cite?
Journal: Applied physics. A, Materials science & processing 
Abstract: Barium-modified bismuth sodium titanate, 0.94 ×(Bi 0.5Na0.5)TiO3-0.06BaTiO3 (BNBT-6), fine-scale piezoelectric fibres were fabricated using a viscous suspension spinning process (VSSP). The sintered BNBT-6 fibres with diameters of ∼ 300 μm were fabricated into 1-3 composites with fibre volume fraction v f of 0.2-0.5. Piezoelectric and dielectric properties of the 1-3 composites were measured. The electromechanical coupling coefficient k t of a vf=0.40 composite is 0.52. Properties of the VSSP fibres were calculated using the measured properties of the 1-3 composites. A vf=0.40 composite was thinned down to ∼ 213-μm thickness and constructed into an ultrasonic transducer. The pulse-echo response, bandwidth and insertion loss of the transducers were studied. The VSSP fibre composite transducer with vf=0.40 has a centre frequency of ∼ 7 MHz with a bandwidth of 88%. The good performance indicated that the BNBT-6/epoxy 1-3 fibre composite transducer has potential for medical imaging applications.
URI: http://hdl.handle.net/10397/15992
ISSN: 0947-8396
EISSN: 1432-0630
DOI: 10.1007/s00339-003-2390-3
Appears in Collections:Journal/Magazine Article

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

SCOPUSTM   
Citations

12
Last Week
0
Last month
0
Citations as of Oct 11, 2017

WEB OF SCIENCETM
Citations

13
Last Week
0
Last month
0
Citations as of Sep 20, 2017

Page view(s)

39
Last Week
6
Last month
Checked on Oct 15, 2017

Google ScholarTM

Check

Altmetric



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