Dielectric characterization of microalloyed alumo-silicate ceramics by using linear regression model
2013
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Конференцијски прилог (Објављена верзија)
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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.
Кључне речи:
aluminium silicate ceramics / linear regression model / dielectric characterizationИзвор:
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, 42-42Издавач:
- Belgrade : Serbian Ceramic Society
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - 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 .