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ABSTRACT
Thin films are widely used as functional coatings in many applications. From a technological point of view, the thermomechanical stability of these coatings is a prerequisite for ensuring their functional stability. However, most of the tests available for characterizing this mechanical stability are unsuited to the study of the adhesion and cohesion of these thin coatings. This is especially true for thin coatings typically thinner than 1 micrometer, and for particle-based coatings. This article describes the ultrasonic cavitation test, which we show to be well-suited to studying the adhesion and cohesion of such thin coatings.
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Read the articleAUTHORS
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Laurent VONNA: Senior Lecturer at the University of Haute Alsace - Mulhouse Institute of Materials Science (IS2M – CNRS), France
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Hamidou HAIDARA: CNRS Research Fellow - Mulhouse Institute of Materials Science (IS2M – CNRS), France
INTRODUCTION
Key points
Field: Thin films, Particulate films, Adhesion and cohesion tests
Degree of technology diffusion: Emergence | Growth | Maturity
Technologies involved: Ultrasonic cavitation, sonotrode
Applications: Adhesion and cohesion of thin coatings, granular coatings
Contact: [email protected] and [email protected]
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KEYWORDS
cavitation test | ultrasonic cavitation | thin coatiings | nanoparticle-based coating
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Ultrasonic cavitation test applied to the characterization of thin coatings
Context
Bibliography
Standards and norms
- Standard Test Method for Erosion of Solid Materials by a Cavitating Liquid Jet, ASTM International, West Conshohocken, PA. - ASTM G134-95 (2010)e1 - 2010
- Standard Test Method for Cavitation Erosion Using Vibratory Apparatus, ASTM International, West Conshohocken, PA. - ASTM G32-10 - 2010
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