Microwave Sintering of Nanoporous Ceramic Membranes Modified with Carbon Nanotubes
The results of the microwave (MW) sintering of nanoporous ceramic membranes containing carbon nanotubes (CNTs) are presented. The samples (80 wt.% Al2O3 + 17 wt.% (CNT - SiO2) + 3 wt.% La2O3) were annealed under conventional and MW heating. It was found that the MW sintering results in a stronger transformation of initial oxide phases and agglomeration of the sample. The experimental data have demonstrated decrease of the total pore volume due to agglomeration of micropores and small mesopores after the MW sintering. Hence, water permeability of the MW sintering membrane was greater due to the increase of the amount of large mesopores.