Dielectric characterization of microalloyed alumo-silicate ceramics by using linear regression model
2013
Authors
Purenović, Jelena M.Mitić, Vojislav V.
Ranđelović, Marjan S.
Matović, Branko
Purenović, Milovan M.
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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.
Keywords:
aluminium silicate ceramics / linear regression model / dielectric characterizationSource:
Advanced Ceramics and Application : 2nd Serbian Ceramic Society Conference : program and the book of abstracts; September 30 - October 1, 2013; Belgrade, 2013, 42-42Publisher:
- Belgrade : Serbian Ceramic Society
Note:
- II Serbian Ceramic Society Conference - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts; September 30 - October 1, 2013; Belgrade
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VinčaTY - CONF AU - Purenović, Jelena M. AU - Mitić, Vojislav V. AU - Ranđelović, Marjan S. AU - Matović, Branko AU - Purenović, Milovan M. PY - 2013 UR - http://dais.sanu.ac.rs/123456789/420 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7430 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 : 2nd Serbian Ceramic Society Conference : program and the book of abstracts; September 30 - October 1, 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_vinar_7430 ER -
@conference{ author = "Purenović, Jelena M. and Mitić, Vojislav V. and Ranđelović, Marjan S. and Matović, Branko and Purenović, Milovan M.", 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 : 2nd Serbian Ceramic Society Conference : program and the book of abstracts; September 30 - October 1, 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_vinar_7430" }
Purenović, J. M., Mitić, V. V., Ranđelović, M. S., Matović, B.,& Purenović, M. M.. (2013). Dielectric characterization of microalloyed alumo-silicate ceramics by using linear regression model. in Advanced Ceramics and Application : 2nd Serbian Ceramic Society Conference : program and the book of abstracts; September 30 - October 1, 2013; Belgrade Belgrade : Serbian Ceramic Society., 42-42. https://hdl.handle.net/21.15107/rcub_vinar_7430
Purenović JM, Mitić VV, Ranđelović MS, Matović B, Purenović MM. Dielectric characterization of microalloyed alumo-silicate ceramics by using linear regression model. in Advanced Ceramics and Application : 2nd Serbian Ceramic Society Conference : program and the book of abstracts; September 30 - October 1, 2013; Belgrade. 2013;:42-42. https://hdl.handle.net/21.15107/rcub_vinar_7430 .
Purenović, Jelena M., Mitić, Vojislav V., Ranđelović, Marjan S., Matović, Branko, Purenović, Milovan M., "Dielectric characterization of microalloyed alumo-silicate ceramics by using linear regression model" in Advanced Ceramics and Application : 2nd Serbian Ceramic Society Conference : program and the book of abstracts; September 30 - October 1, 2013; Belgrade (2013):42-42, https://hdl.handle.net/21.15107/rcub_vinar_7430 .