Influence of an aluminized intermediate layer on the adhesion of a γ-Al2O3 washcoat on FeCrAl

Optimization of the Electrochemical Acceleration for Actual Corrosion Behavior of Hot-Dip Aluminized Ferritic Stainless Steel in NaCl Solution

“…23) found that the intermetallic layers are composed of outer and inner layers, which are τ 5(H) -Al 7 (Fe,Cr) 2 Si and FeAl 3 /τ 1 -(Al,Si) 5 Fe 3 / Fe 2 Al 5 , respectively, due to the diffusion of the Cr during the hot-dipping process in an Al-10 mass% Si bath. Wu 24) explained that Al 5 (Fe,Cr) 2 and other intermetallic compounds were formed between the aluminized layer and FeCrAl foils due to the in ltration of the Al. Figure 2 shows the intermetallic outer layer and inner layer of the aluminized stainless steel that appears after the dipping in the 1 M NaOH solution that removed the aluminized layer.…”

Diffusion and Bonding Mechanism of Protective γ-Al2O3on FeCrAl Foil for Metallic Three-Way Catalytic Converter

“…The other methods are co-precipitation, sol-gel and spray-pyrolysis methods [11], electrophoretic deposition [12], solution combustion synthesis (SCS) [13], aluminizing technique [14], and hydrothermal method [15,16]. That method presented good adherence to the substrate, decreasing surface roughness and closed the surface porosity of the substrate [17].…”

Preparation of NiO Catalyst on FeCrAl Substrate Using Various Techniques at Higher Oxidation Process

“…The other methods are co-precipitation, sol-gel and spray-pyrolysis methods were also applied for preparation of FeCrAlloy supported perovskite for catalytic combustion of methane (Yanqing, et al, 2010). Furthermore, another technological procedure to develop and adhere to the catalysts on the FeCrAl substrate are based on electrophoretic deposition (Sun et al, 2007;Corni et al, 2008), solution combustion synthesis (SCS) (Specchia et al, 2004), aluminizing technique (Wu et al, 2007), and hydrothermal method (Zamaro et al, 2008;Wei et al, 2005;Mies et al, 2007;Sivaiah, 2010). However, the existing methods still have some limitations, especially due to the rather complicated method to applying the catalyst which is in the form of powder.…”