Stability Study of Dielectric Properties of Plasma-Sprayed BaTiO3
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F22%3A00556549" target="_blank" >RIV/61389021:_____/22:00556549 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/22:00357710 RIV/68407700:21230/22:00357710
Result on the web
<a href="https://www.mdpi.com/2079-6412/12/3/355" target="_blank" >https://www.mdpi.com/2079-6412/12/3/355</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/coatings12030355" target="_blank" >10.3390/coatings12030355</a>
Alternative languages
Result language
angličtina
Original language name
Stability Study of Dielectric Properties of Plasma-Sprayed BaTiO3
Original language description
Barium titanate coatings were, for the first time, sprayed by a high feed-rate plasma torch with water stabilization of the plasma. Two power levels of the torch were applied for spraying to cover steel substrates. Various substrate preheating levels from 125 degrees C to 377 degrees C were used to modify cooling conditions. Microstructure and phase composition including crystallinity quantification were observed. Dielectric measurements proved that the relative permittivity between 300 and 400 coatings is too temperature sensitive over 170 degrees C but fits the requirements of the EIA temperature coefficient between room temperature and 170 degrees C. Simultaneously, the loss tangent remains rather low, between 0.02 and 0.07, in a broad range of temperatures and frequencies. Annealing was performed in air to heal the oxygen deficiency, but only modified the microstructure insignificantly. The dielectric properties of as-sprayed and annealed samples were discussed, with the main finding that the temperature coefficient of permittivity was improved by annealing. This study contributes to the search for the suitability of plasma-sprayed BaTiO3 coatings for application in the electrical industry, namely by the optimization of conditions for high feed-rate spraying.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Coatings
ISSN
2079-6412
e-ISSN
2079-6412
Volume of the periodical
12
Issue of the periodical within the volume
3
Country of publishing house
CH - SWITZERLAND
Number of pages
15
Pages from-to
355
UT code for WoS article
000775744400001
EID of the result in the Scopus database
2-s2.0-85126578500