DocumentCode :
2732483
Title :
Pyroelectric properties of Pb0.88(Ln)0.08Ti0.98Mn0.02O3 (Ln=La, Sm, Eu) piezoceramics for biomedical use
Author :
González, R. ; Castillo, V. ; Suaste, E.
Author_Institution :
Departamento de Ingenieria Electrica, CINVESTAV-IPN, Mexico
Volume :
4
fYear :
2003
fDate :
17-21 Sept. 2003
Firstpage :
3032
Abstract :
In this work are studied the pyroelectric properties of Pb0.88(Ln)0.08Ti0.98Mn0.02O3 (Ln = La, Sm, Eu) ferroelectric ceramic system. These type of ferroelectric ceramics presents high values in the following characteristics: dielectric constant, Curie temperature, electromechanical anisotropy, and frequencies of operation.. These properties make them useful for applications such as: the detection of infrared radiation, ultrasonic transducers for biomedical applications. The relationship between dielectric constant and temperature measurements as well as pyroelectric measurements using the technique of Byer-Roundy were performed. Values of the pyroelectric coefficient and figure of merit for infrared detector materials were obtained.
Keywords :
Curie temperature; biomedical transducers; biomedical ultrasonics; europium compounds; ferroelectric ceramics; infrared detectors; lanthanum compounds; lead compounds; manganese compounds; permittivity; pyroelectric detectors; pyroelectricity; samarium compounds; temperature measurement; titanium compounds; ultrasonic transducers; Byer-Roundy technique; Curie temperature; Pb0.88Eu0.08Ti0.98Mn0.02O3; Pb0.88La0.08Ti0.98Mn0.02O3; Pb0.88Sm0.08Ti0.98Mn0.02O3; biomedical application; biomedical use; dielectric constant; electromechanical anisotropy; ferroelectric ceramic system; infrared detector material; infrared radiation detection; piezoceramics; pyroelectric ceramic; pyroelectric coefficient; pyroelectric property; rare-earth element; temperature measurement; ultrasonic transducer; Anisotropic magnetoresistance; Ceramics; Dielectric constant; Ferroelectric materials; Frequency; Infrared detectors; Pyroelectricity; Radiation detectors; Temperature; Ultrasonic transducers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE
ISSN :
1094-687X
Print_ISBN :
0-7803-7789-3
Type :
conf
DOI :
10.1109/IEMBS.2003.1280779
Filename :
1280779
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2732483
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