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Dielectric characterization of microalloyed alumo-silicate ceramics by using linear regression model

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2013
417.pdf (115.0Kb)
Authors
Purenović, Jelena
Mitić, Vojislav V.
Ranđelović, Marjan
Matović, Branko
Purenović, Milovan
Conference object (Published version)
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Abstract
In this paper, dielectric characterization of porous alumo-silicate ceramics, modified by alloying with magnesium and microalloying with aluminum, was investigated. Microstructure investigations have revealed non-uniform and highly porous structure with broad distribution of grain size, specifically shaped grains and high degree of agglomeration. Complex multiphase system, as active microalloyed ceramics, has specific behavior under external electrical field influence. Dielectric properties (the changes of permittivity, electrical resistivity, dielectric losses and impedance) were measured in the frequency range 20 Hz – 1 MHz. All characteristics showed nonlinear distribution and complex functional dependences because of significant nonhomogeneity of active microalloyed ceramics. Values for permittivity ranged between 140 – 430. Order of magnitude for electrical resistivity was about 106 Ωm, for impedance 104 – 108 Ω, and loss tangent had values much greater than 0.05. Mathematical mod...el of linear regression was applied on the dielectric characterization results. Consistency with experimental data was approved, since the values for correlation coefficient r and determination coefficient r2 were obtained near value 1.

Keywords:
aluminium silicate ceramics / linear regression model / dielectric characterization
Source:
Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade, 2013, 42-42
Publisher:
  • Belgrade : Serbian Ceramic Society

ISBN: 9788691562717

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_dais_420
URI
https://dais.sanu.ac.rs/123456789/420
Collections
  • ИТН САНУ - Општа колекција / ITS SASA - General collection
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - CONF
AU  - Purenović, Jelena
AU  - Mitić, Vojislav V.
AU  - Ranđelović, Marjan
AU  - Matović, Branko
AU  - Purenović, Milovan
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/420
AB  - In this paper, dielectric characterization of porous alumo-silicate ceramics, modified by alloying with magnesium and microalloying with aluminum, was investigated. Microstructure investigations have revealed non-uniform and highly porous structure with broad distribution of grain size, specifically shaped grains and high degree of agglomeration. Complex multiphase system, as active microalloyed ceramics, has specific behavior under external electrical field influence. Dielectric properties (the changes of permittivity, electrical resistivity, dielectric losses and impedance) were measured in the frequency range 20 Hz – 1 MHz. All characteristics showed nonlinear distribution and complex functional dependences because of significant nonhomogeneity of active microalloyed ceramics. Values for permittivity ranged between 140 – 430. Order of magnitude for electrical resistivity was about 106 Ωm, for impedance 104 – 108 Ω, and loss tangent had values much greater than 0.05. Mathematical model of linear regression was applied on the dielectric characterization results. Consistency with experimental data was approved, since the values for correlation coefficient r and determination coefficient r2 were obtained near value 1.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
T1  - Dielectric characterization of microalloyed alumo-silicate ceramics by using linear regression model
SP  - 42
EP  - 42
UR  - https://hdl.handle.net/21.15107/rcub_dais_420
ER  - 
@conference{
author = "Purenović, Jelena and Mitić, Vojislav V. and Ranđelović, Marjan and Matović, Branko and Purenović, Milovan",
year = "2013",
abstract = "In this paper, dielectric characterization of porous alumo-silicate ceramics, modified by alloying with magnesium and microalloying with aluminum, was investigated. Microstructure investigations have revealed non-uniform and highly porous structure with broad distribution of grain size, specifically shaped grains and high degree of agglomeration. Complex multiphase system, as active microalloyed ceramics, has specific behavior under external electrical field influence. Dielectric properties (the changes of permittivity, electrical resistivity, dielectric losses and impedance) were measured in the frequency range 20 Hz – 1 MHz. All characteristics showed nonlinear distribution and complex functional dependences because of significant nonhomogeneity of active microalloyed ceramics. Values for permittivity ranged between 140 – 430. Order of magnitude for electrical resistivity was about 106 Ωm, for impedance 104 – 108 Ω, and loss tangent had values much greater than 0.05. Mathematical model of linear regression was applied on the dielectric characterization results. Consistency with experimental data was approved, since the values for correlation coefficient r and determination coefficient r2 were obtained near value 1.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade",
title = "Dielectric characterization of microalloyed alumo-silicate ceramics by using linear regression model",
pages = "42-42",
url = "https://hdl.handle.net/21.15107/rcub_dais_420"
}
Purenović, J., Mitić, V. V., Ranđelović, M., Matović, B.,& Purenović, M.. (2013). Dielectric characterization of microalloyed alumo-silicate ceramics by using linear regression model. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
Belgrade : Serbian Ceramic Society., 42-42.
https://hdl.handle.net/21.15107/rcub_dais_420
Purenović J, Mitić VV, Ranđelović M, Matović B, Purenović M. Dielectric characterization of microalloyed alumo-silicate ceramics by using linear regression model. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade. 2013;:42-42.
https://hdl.handle.net/21.15107/rcub_dais_420 .
Purenović, Jelena, Mitić, Vojislav V., Ranđelović, Marjan, Matović, Branko, Purenović, Milovan, "Dielectric characterization of microalloyed alumo-silicate ceramics by using linear regression model" in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade (2013):42-42,
https://hdl.handle.net/21.15107/rcub_dais_420 .

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