TY - JOUR
T1 - Spin coating deposition on complex geometry substrates
T2 - Influence of operative parameters
AU - Balzarotti, Riccardo
AU - Cristiani, Cinzia
AU - Francis, Lorraine F.
PY - 2017/12/1
Y1 - 2017/12/1
N2 - An industrial spin coater was used to coat complex substrates for catalytic applications. Metallic open cell foams (20, 30 and 40 pores per inch, PPI) were coated for times up to 120 s using a range of spinning velocities (from 1000 to 3000 rpm). Water/glycerol solutions of different viscosities were used as model liquids to assess the influence of operating parameters on the deposition process. Coating weight (i.e., load) was found to decrease with rotation speed and spinning time, while higher coating loads were measured with an increase of viscosity and geometrical support PPI. Moreover, a process to spin coat acid-free cerium oxide slurries was developed to create a catalyst carrier on the three-dimensional substrates. Excellent control of deposited load and good adhesion performance were obtained.
AB - An industrial spin coater was used to coat complex substrates for catalytic applications. Metallic open cell foams (20, 30 and 40 pores per inch, PPI) were coated for times up to 120 s using a range of spinning velocities (from 1000 to 3000 rpm). Water/glycerol solutions of different viscosities were used as model liquids to assess the influence of operating parameters on the deposition process. Coating weight (i.e., load) was found to decrease with rotation speed and spinning time, while higher coating loads were measured with an increase of viscosity and geometrical support PPI. Moreover, a process to spin coat acid-free cerium oxide slurries was developed to create a catalyst carrier on the three-dimensional substrates. Excellent control of deposited load and good adhesion performance were obtained.
KW - Catalyst deposition
KW - Metallic foams
KW - Rheology
KW - Spin coating
KW - Washcoating
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U2 - 10.1016/j.surfcoat.2017.09.077
DO - 10.1016/j.surfcoat.2017.09.077
M3 - Article
AN - SCOPUS:85030229623
SN - 0257-8972
VL - 330
SP - 1
EP - 9
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
ER -