Abstract：
:This paper describes fabrication and comparison of PMN-PT single crystal, PZT, and PZT-based 1-3 composite ultrasonic transducers for NDE applications. As a front matching layer between test material (Austenite stainless steel, SUS316) and piezoelectric materials, alumina ceramics was selected. The appropriate acoustic impedance of the backing materials for each transducer was determined based on the results of KLM model simulation. Prototype ultrasonic transducers with the center frequencies of approximately 2.25 and 5MHz for contact measurement were fabricated and compared to each other. The PMN-PT single crystal ultrasonic transducer shows considerably improved performance in sensitivity over the PZT and PZT-based 1-3 composite ultrasonic transducers.
journal_name
Ultrasonicsjournal_title
Ultrasonicsauthors
Kim KB,Hsu DK,Ahn B,Kim YG,Barnard DJdoi
10.1016/j.ultras.2010.04.001subject
Has Abstractpub_date
2010-08-01 00:00:00pages
790-7issue
8eissn
0041-624Xissn
1874-9968pii
S0041-624X(10)00062-4journal_volume
50pub_type
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