Detail publikace

Processing and properties of dense cordierite ceramics obtained through solid-state reaction and pressure-less sintering

OBRADOVIĆ, N. PAVLOVIĆ, V. KACHLÍK, M. MACA, K. OLĆAN, D. DORDEVIĆ, A. TSHANTSHAPANYAN, A. VLAHOVIĆ, B. PAVLOVIĆ, V.

Originální název

Processing and properties of dense cordierite ceramics obtained through solid-state reaction and pressure-less sintering

Anglický název

Processing and properties of dense cordierite ceramics obtained through solid-state reaction and pressure-less sintering

Jazyk

en

Originální abstrakt

Sintering of pure cordierite 2MgO:2Al2O3:5SiO2, and cordierite with the addition of 5 mass % TeO2 was studied. Green bodies were prepared from powder mixtures mechanically activated in a high-energy planetary mill, shaped by uniaxial (20 MPa) and cold isostatic pressing (1000 MPa). The pressure-less sintering of these specimens was performed at 1350° C for 1 h. High relative density over 95% of the theoretical value was obtained through solidstate reaction and pressure-less sintering of powder activated for 40 min, and for the first time reported in the literature. Phase composition and microstructures of sintered samples were determined by XRD and SEM, coupled with EDS mapping. The real part of the complex relative permittivity of the samples was measured at 200 MHz. The loss tangent of all samples was below the resolution of the measurement setup. A strong correlation between the relative permittivity and the density agrees with previously published data.

Anglický abstrakt

Sintering of pure cordierite 2MgO:2Al2O3:5SiO2, and cordierite with the addition of 5 mass % TeO2 was studied. Green bodies were prepared from powder mixtures mechanically activated in a high-energy planetary mill, shaped by uniaxial (20 MPa) and cold isostatic pressing (1000 MPa). The pressure-less sintering of these specimens was performed at 1350° C for 1 h. High relative density over 95% of the theoretical value was obtained through solidstate reaction and pressure-less sintering of powder activated for 40 min, and for the first time reported in the literature. Phase composition and microstructures of sintered samples were determined by XRD and SEM, coupled with EDS mapping. The real part of the complex relative permittivity of the samples was measured at 200 MHz. The loss tangent of all samples was below the resolution of the measurement setup. A strong correlation between the relative permittivity and the density agrees with previously published data.

Dokumenty

BibTex


@article{BUT155494,
  author="Nina {Obradović} and V.P. {Pavlović} and Martin {Kachlík} and Karel {Maca} and Dragan {Olćan} and Antonije {Dordević} and Ani {Tshantshapanyan} and Branislav {Vlahović} and Vladimir B. {Pavlović}",
  title="Processing and properties of dense cordierite ceramics obtained through solid-state reaction and pressure-less sintering",
  annote="Sintering of pure cordierite 2MgO:2Al2O3:5SiO2, and cordierite with the addition of 5 mass %
TeO2 was studied. Green bodies were prepared from powder mixtures mechanically
activated in a high-energy planetary mill, shaped by uniaxial (20 MPa) and cold isostatic
pressing (1000 MPa). The pressure-less sintering of these specimens was performed at 1350°
C for 1 h. High relative density over 95% of the theoretical value was obtained through solidstate
reaction and pressure-less sintering of powder activated for 40 min, and for the first
time reported in the literature. Phase composition and microstructures of sintered samples
were determined by XRD and SEM, coupled with EDS mapping. The real part of the complex
relative permittivity of the samples was measured at 200 MHz. The loss tangent of all
samples was below the resolution of the measurement setup. A strong correlation between
the relative permittivity and the density agrees with previously published data.",
  chapter="155494",
  doi="10.1080/17436753.2018.1548150",
  howpublished="print",
  number="5",
  volume="118",
  year="2019",
  month="july",
  pages="241--248",
  type="journal article in Web of Science"
}