Bookcover of POLING AND SWITCHING OF PZT CERAMICS
Booktitle:

POLING AND SWITCHING OF PZT CERAMICS

Field and grain size effects

VDM Verlag Dr. Müller (2010-07-01 )

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ISBN-13:

978-3-639-27249-9

ISBN-10:
3639272498
EAN:
9783639272499
Book language:
English
Blurb/Shorttext:
The polarization is the true measure of the degree of ferroelectricity. Generally, ceramic materials with high value of remanent polarization show usable piezoelectric effects. Accordingly, electric poling is one of the crucial intermediate stages of the manufacturing process of the piezoceramics devices. In this thesis, the ferroelectric, pyroelectric and piezoelectric properties and aftereffects in soft and hard PZT are studied. The properties can be influenced by various parameters either extrinsic such as an applied electric field or intrinsic such as grain size. The main objective of this PhD thesis is to understand the polarization phenomena of the PZT ceramics and consequently the appropriate poling conditions can be adjusted to yield the optimum dielectric and piezoelectric performance for commercial piezoelectric actuator devices. Although switching in ferroelectrics is well known phenomenon, many accompanying effects remain not well understood. The thesis treats some unusual switching behaviors in PZT ferroceramics.
Publishing house:
VDM Verlag Dr. Müller
Website:
http://www.vdm-verlag.de
By (author) :
Talal Kamel
Number of pages:
156
Published on:
2010-07-01
Stock:
Available
Category:
Physics, astronomy
Price:
59.00 €
Keywords:
Dielectrics, polar materials, Ceramics, Perovskites, Piezoelectrics, ferroelectrics, pyroelectrics, electroceramics, hysteresis loop, pinched hysteresis loop, poling, polarization, Switching, PZT, domain walls, soft PZT, hard PZT, pinning, oxygen vacancies, Grain size, electric field, discharging current.

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