Two-step plasma mediated synthesis of mullite and sillimanite powder and their suspensive spray coating on stainless steel

Plasma spraying of mullite and pore formers for thermal insulating applications

“…Requirements enforce low thermal conductivity and density, which limits the choice to aluminum silicates, such as mullite which is commonly used in plasma spraying [29], [30], [31], [32]. Mullite (stoichiometry: 3 Al2O3 -2 SiO2) is an advanced ceramic having appropriate properties for thermal insulating applications, such as compressive strength, thermal conductivity [33], corrosion resistance [34] and stability in atmospheric pressure [35], [36]. The mullite main properties obtained with the CES (Cambridge Engineering Selector) software are represented in Table 1.…”