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Title Formation features of thin bilayer objects «conductor - dielectric» obtained by screen printing method
Authors Umerova, S.O.
Dulina, I.O.
Ragulya, A.V.
ORCID
Keywords Screen printing technology
Pastes
Rheological properties
Surface parameters
Type Article
Date of Issue 2014
URI http://essuir.sumdu.edu.ua/handle/123456789/37168
Publisher Sumy State University
License
Citation Proc. NAP 3, 01NTF04 (2014)
Abstract This paper is about formation features of thin layers for different multilayered nanocomposites obtaining. It is well-known that screen printing technology is more promising one for thin layers obtaining, but films thickness and parameters of surface are determinate by viscosity and rheological behavior of pastes. Plasticizer addition has positive influence on thickness and prints parameters of surface of corresponding dielectric pastes based on BaTiO3 nanopowder because of rheological properties changing during adsorption type modification between nanoparticle and plasticized polymer molecule: rheopexy degree R increasing leads to surface parameter Ra value decreasing (from 83 nm to 20 – 25 nm); shear stress of pseudoplastic flow start increasing leads to thickness growing. It was found that opportunity of bilayer objects formation «conductor - dielectric» is conditioned by dielectric pastes rheological behavior: dilatancy rate Vd increasing leads to dielectric film thickness growing. Here, Ra parameter of conductive layer determines with EDSD criteria value of appropriate dielectric paste and should not be equal to 0.5.
Appears in Collections: Наукові видання (ЕлІТ)

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China China
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