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Cohesive strength of catalytic composite coatings of the Ni–Al–Al2O3 system on a metal substrate
https://doi.org/10.22349/1994-6716-2022-110-2-71-80
Abstract
Porous composite coatings based on the Ni–Al–Al2O3 system on a metal substrate were obtained by the method of cold gas-dynamic spraying and subsequent annealing. The maximum content of aluminum hydroxide Al(OH)3 is 70% in the initial powder mixture, at which a high-quality coating is formed. The dependences of the influence of the composition of metal and ceramic components on the cohesion of coatings under ultrasonic treatment are obtained.
Keywords
cold gas-dynamic spraying,
catalytic carrier,
porous coating,
aluminum hydroxide,
ultrasonic treatment,
cohesion,
mass loss
Supporting agencies: Experimental studies were performed on the equipment of the Center for Collective Use “Composition, Structure and Properties of Structural and Functional Materials” of the NRC “Kurchatov Institute” – CRISM “Prometey” with financial support from the Ministry of Science and Higher Education of the RF, Agreement 13.ЦКП.21.0014 (075-11-2021-068), unique identifier RF–2296.61321X0014
About the Authors
N. V. Yakovleva
NRC Kurchatov Institute – CRISM Prometey
Russian Federation
Russian Federation
49 Shpalernaya St, 191015 St Petersburg
A. M. Makarov
NRC Kurchatov Institute – CRISM Prometey
Russian Federation
Russian Federation
49 Shpalernaya St, 191015 St Petersburg
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Review
For citations:
Yakovleva N.V., Makarov A.M. Cohesive strength of catalytic composite coatings of the Ni–Al–Al2O3 system on a metal substrate. Voprosy Materialovedeniya. 2022;(2(110)):71-80. (In Russ.) https://doi.org/10.22349/1994-6716-2022-110-2-71-80
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