Aluminum matrix composites have recently taken an important role in advanced applications because they a good combination of physical and chemical properties. For this reason, work, aluminum composites, with additions ceramic particles (mullite or tungsten carbide), were manufactured order to determine the effect those on mechanical properties microstructure aluminum. The manufacture was carrie...

Mullite has low thermal expansion coefficient, conductivity and excellentresistance to shock, plays therefore an important role in the synthesis of modern ceramic materials. The paper presents experimental results mullite ceramics using plasma. samples are obtained from natural raw materials such as boehmite silica sand stoichiometric Al 2 O 3 /SiO ratio 1.86, 5.67. It is shown that optimal ope...

Abstract The corrosion behavior of environmental barrier coatings (EBCs) directly affects the service life and stability ceramic matrix composite (CMC) structural parts in aero-engines. silicon carbide (SiC) whisker toughening phase c-AlPO 4 bonding are firstly used to improve novel tri-layer Yb 2 Si O 7 /mullite/SiC EBCs burner rig test. formation penetrating cracks coating caused failure at 1...

having sufficient and accurate understanding about kinetics of phenomena, could be an important reason for further technological progresses. finding a white-box mathematical model for weight vs. time curves of electrophoretic deposition (epd) using large and small signal analysis has been studied thoroughly in the present investigation. weight-time curves of nano-mullite suspension have been tr...

High-alumina coal fly ash (HAFA: 45% Al2O3 and 40% SiO2) is regarded as a special solid waste that generated from power plants in northwestern China. It an important substitute for bauxite applied to prepare mullite-based ceramics. In this work, hydrometallurgy–pyrometallurgy synergistic process proposed resolve the lower Al2O3/SiO2 mass ratio (Al/Si) degree of crystallinity can promote formati...