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Indentation hardness and scratch tests for thin layers manufactured by sol-gel process.

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Title: Indentation hardness and scratch tests for thin layers manufactured by sol-gel process.
Authors: Guediche, A.1 (AUTHOR) amira.guediche@cea.fr, Compoint, F.1 (AUTHOR), Boscher, C.1 (AUTHOR), Stelian, C.2 (AUTHOR), Piombini, H.1 (AUTHOR) herve.piombini@cea.fr
Source: Thin Solid Films. Apr2021, Vol. 724, pN.PAG-N.PAG. 1p.
Subjects: Hardness testing, Sol-gel processes, Elasticity, Elastic modulus, Manufacturing processes, Thin films, Self-healing materials, Silica films
Abstract: • Design of a homemade nano-indenter with a microscope and a scanning stage. • Study of mechanical properties of silica-PDMS (polydimethylsiloxane) ormosils. • Determination of hardness and elastic modulus by nano-indentation. • Comprehension of self-healing mechanisms. Indentation hardness and scratch tests are common techniques used in industries and laboratories to determine the mechanical properties of thin films. Here, we propose to determine a relative value of the elastic modulus and hardness of thin films composed of a mixture of polydimethylsiloxane and polymeric silica with elastic properties and self-healing effects. For this study, a homemade nano-indenter and nano scratch tester have been designed with a microscope and a scanning stage allowing the carrying out of measurements on transparent materials having a weak elastic modulus and the possibility to identify a self-healing effect of these films. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:• Design of a homemade nano-indenter with a microscope and a scanning stage. • Study of mechanical properties of silica-PDMS (polydimethylsiloxane) ormosils. • Determination of hardness and elastic modulus by nano-indentation. • Comprehension of self-healing mechanisms. Indentation hardness and scratch tests are common techniques used in industries and laboratories to determine the mechanical properties of thin films. Here, we propose to determine a relative value of the elastic modulus and hardness of thin films composed of a mixture of polydimethylsiloxane and polymeric silica with elastic properties and self-healing effects. For this study, a homemade nano-indenter and nano scratch tester have been designed with a microscope and a scanning stage allowing the carrying out of measurements on transparent materials having a weak elastic modulus and the possibility to identify a self-healing effect of these films. [ABSTRACT FROM AUTHOR]
ISSN:00406090
DOI:10.1016/j.tsf.2021.138618