Structure and Properties of Porous Ti3AlC2-Doped Al2O3 Composites Obtained by Slip Casting Method for Membrane Application; Materials; Vol. 16, iss. 4

Structure and Properties of Porous Ti3AlC2-Doped Al2O3 Composites Obtained by Slip Casting Method for Membrane Application; Materials; Vol. 16, iss. 4

Sonraí bibleagrafaíochta
Parent link:Materials
Vol. 16, iss. 4.— 2023.— [1537, 10 p.]
Údar corparáideach: Национальный исследовательский Томский политехнический университет Инженерная школа ядерных технологий Отделение экспериментальной физики
Rannpháirtithe: Kashkarov E. B. Egor Borisovich, Krinitsyn M. G. Maksim Germanovich, Dyusambaev A. Adilzhan, Pirozhkov A. V. Alexey Vladimirovich, Koptsev M. Maksim
Achoimre:Title screen
In the present work, porous composites were fabricated from pure Al2O3 and mixed Ti3AlC2/Al2O3 powder by slip casting and sintering. The effect of sintering temperature and different composition ratio on microstructure, phase composition, porosity and gas permeation flux of the fabricated materials was investigated. The microstructure and phase composition of the samples were analyzed by scanning electron microscopy and X-ray diffraction, respectively. The gas permeation experiments were performed using pure hydrogen at 0.1-0.9 MPa pressure. It is shown that a decrease in sintering temperature from 1500 to 1350 °C results in an increase in hydrogen permeation flux of the alumina from 5 to 25 mol/(m2 × s), which is due to higher pore size and overall porosity of the samples. Sintering of Ti3AlC2/Al2O3 powder mixtures leads to the formation of Al2O3, Al2TiO5 and TiO2 phases as a result of oxidation of the Ti3AlC2 phase, resulting in an increased pore size in the composites compared with pure alumina. The open porosity of composites increases from 3.4 to 40% with an increasing Ti3AlC2/Al2O3 ratio from 1/10 to 1/2, respectively. The composites with the highest porosity (40%) had a maximum permeation flux of 200 mol/(m2 × s). The changes in the bending strength of the alumina and composite samples, depending on the microstructure and porosity, were also discussed. The investigated composites are considered promising materials for hydrogen separation membrane supports.
Teanga:Béarla
Foilsithe / Cruthaithe: 2023
Ábhair:
электронный ресурс
труды учёных ТПУ
porous composites
alumina
mechanical properties
microstructure
ceramic supports
пористые композиционные материалы
глиноземы
механические свойства
микроструктура
Rochtain ar líne:http://earchive.tpu.ru/handle/11683/74799
https://doi.org/10.3390/ma16041537
Formáid: Leictreonach Caibidil leabhair
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669219

Míreanna comhchosúla

Míreanna comhchosúla