Porous SiC ceramic obtained by spark plasma sintering of preceramic paper: Microstructure, mechanical properties and gas permeability

Porous SiC ceramic obtained by spark plasma sintering of preceramic paper: Microstructure, mechanical properties and gas permeability

Podrobná bibliografie
Parent link:Ceramics International.— .— Amsterdam: Elsevier Science Publishing Company Inc.
Vol. 50, iss. 8.— 2024.— P. 12950-12959
Korporativní autor: National Research Tomsk Polytechnic University
Další autoři: Sedanova E. P. Elizaveta Pavlovna, Kashkarov E. B. Egor Borisovich, Lider A. M. Andrey Markovich, Travitsky (Travitzky) N. Nakhum
Shrnutí:Title screen
This paper describes the fabrication and characterization of porous SiC ceramics derived from highly-filled preceramic papers. The SiC ceramics were obtained by spark plasma sintering of stacked preceramic papers at temperatures of 2100 and 2200 °C under pressures of 5–60 MPa for 10 min. The microstructure and phase composition were analyzed by scanning electron microscopy and X-ray diffraction, respectively. Gas permeation tests were performed using hydrogen permeation cell at room temperature. It is revealed that the porosity of sintered SiC can be varied from 9 to 45 % depending on the sintering parameters. The shrinkage of the materials during spark plasma sintering occurs in four stages. The linear shrinkage value of the material increases from 7 to 47 % at 2100 °C and from 20 to 50 % for the samples sintered at 2100 and 2200 °C, respectively. Correlation dependencies between porosity and mechanical properties of the fabricated SiC were established. The obtained porous SiC ceramics exhibit high bending strength of 165 MPa and gas permeation flux of 78 molH2/m2/s at the porosity of 36 % that make it suitable for ceramic-based membranes
AM_Agreement
Vydáno: 2024
Témata:
электронный ресурс
труды учёных ТПУ
preceramic paper
silicon carbide
porous ceramics
spark plasma sintering
ceramic supports
On-line přístup:https://doi.org/10.1016/j.ceramint.2024.01.203
Médium: Elektronický zdroj Kapitola
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=672255

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