Přehled o publikaci
2015
Co-sintered PZT ceramics for the piezoelectric transformers
SEBASTIAN, Tutu; Lucjan KOZIELSKI and Jiří ERHARTBasic information
Original name
Co-sintered PZT ceramics for the piezoelectric transformers
Authors
SEBASTIAN, Tutu (356 India); Lucjan KOZIELSKI (616 Poland) and Jiří ERHART (203 Czech Republic, guarantor, belonging to the institution)
Edition
Ceramics International, 2015, 0272-8842
Other information
Language
English
Type of outcome
Article in a journal
Field of Study
Solid-state physics and magnetism
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
is not subject to a state or trade secret
References:
RIV identification code
RIV/46747885:24510/15:#0001261
Organization
Faculty of Science, Humanities and Education – Technical University of Liberec – Repository
UT WoS
000356549100013
Keywords in English
Piezoelectric transformer; PZT ceramics; Functionally graded structure
Changed: 5/4/2016 08:52, Jiří Erhart
Abstract
In the original language
The co-sintered functionally graded PZT ceramic transformers working in a kp-mode in both input and output circuits were studied. Theoretical model was developed to describe the transformation ratio as a function of the frequency. Transformation ratio, efficiency and power density are measured for the set of samples with homogenous PZT and variable input/output PZT compositions for the low-power signal and compared with the derived formulae. The maximum efficiency is observed for the homogenous hard PZT compositions (type APC840). Contrary to the theoretical calculations, co-sintering hard PZT ceramics along with the soft PZT were not experimentally proven to produce a noticeable increase in the transformation ratio, efficiency and output power density probably due to the difference in optimal sintering temperature.