The challenge in synthesizing high-entropy ceramic (HEC) nanopowders is to suppress severe grain coarsening and particle agglomeration, which occur at elevated temperatures. This could be addressed by the polyacrylamide gel method. In this work, single-phase (La0.2Nd0.2Sm0.2Gd0.2Yb0.2)2Zr2O7 (La0.2</sub...

Mixed Ta 2 O 5 – TiO binary system was studied by a combination of differential thermal analysis (DTA), scanning electron microscopy-energy dispersive spectrometry (SEM-EDS), X-ray diffraction (XRD) and in situ high temperature (HT-XRD) techniques. Different compositions the mixed oxide powders were fabricated ball–milling powdered compositions, pelletizing homogenized composite powders, heatin...

The purpose of this paper is to study the thermal shock resistance and failure mechanism La2Ce2O7/8YSZ double-ceramic-layer barrier coatings (LC/8YSZ DCL TBCs) under extreme temperature gradients. At high surface temperatures, infrared measuring modules were used determine cycling life insulation LC/8YSZ TBCs gradients by an oxygen–acetylene gas flame testing machine. A viscoelastic model was o...

Five carbonaceous nano-additives (graphite, graphene, carbon black, nanotubes, and diamond) had different impacts on the sinterability, microstructural evolution, properties of titanium carbide. In this research, sintering by spark plasma was employed to produce monolithic TiC carbon-doped ceramics under parameters 1900 ºC, 10 min, 40 MPa. The black additive best performance in densifying TiC, ...