DocumentCode
385636
Title
Phase transition in Pb0.88Ln0.08Ti0.98Mn0.02O3 (Ln=La, Sm, Eu) piezoelectric transducers, using radiation and emissivity [biomedical US transducers application]
Author
Suaste, E. ; Castillo, V. ; Gonzalez, R.
Author_Institution
Departamento de Ingenieria Electrica, CINVESTAV-IPN, Mexico City, Mexico
Volume
2
fYear
2002
fDate
2002
Firstpage
1775
Abstract
We report a new method to determine the phase transition in piezoelectric ceramic by means of the radiation that they emit when it is subjected to different temperatures. The experiment is performed in piezoelectric ceramic based on PbTiO3 modified by the partial substitution of rare earths for Pb in the Pb0.88(Ln)0.08Ti0.98Mn0.02O3 system (Ln = La, Sm, Eu). Also starting from the measurement of the emitted radiation, the value of the emissivity is calculated for each type of piezoelectric ceramic.
Keywords
biomedical transducers; biomedical ultrasonics; ferroelectric devices; lead compounds; piezoelectric transducers; solid-state phase transformations; ultrasonic transducers; Curie point; Pb0.88Ln0.08Ti0.98Mn0.02O3 (Ln=La, Sm, Eu) piezoelectric transducers; PbEuTiMnO3; PbLaTiMnO3; PbSmTiMnO3; bioengineering; black body; emitted radiation; gray body; medical US transducers; partial substitution; phase transition; piezoelectric ceramic; rare earths; ultrasonic transducers; Ceramics; Dielectric measurements; Ferroelectric materials; Frequency conversion; Phase measurement; Piezoelectric transducers; Samarium; Temperature measurement; Temperature sensors; Ultrasonic transducers;
fLanguage
English
Publisher
ieee
Conference_Titel
Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint
ISSN
1094-687X
Print_ISBN
0-7803-7612-9
Type
conf
DOI
10.1109/IEMBS.2002.1106647
Filename
1106647
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