Acoustic emission on microdestruction of diamond-like carbon coatings prepared by vacuum-arc deposition

The effect of microdestruction of diamond-like coatings (DLC), prepared by the deposition of low energy plasma fluxes onto a cold substrate, was studied as a function of the structural state of the DLC. The acoustic emission (AE) method was used to extract information on the microdestruction of carb...

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Bibliographic Details
Published in:Diamond and related materials 1995-05, Vol.4 (5), p.791-793
Main Authors: Bojko, V.S., Krivenko, L.F., Marinin, V.G., Ostapenko, I.L., Strel'nitskij, V.E.
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Diamond-like carbon
Exact sciences and technology
Mechanical and acoustical properties
adhesion
Mechanical properties
Microstructure
Physics
Solid surfaces and solid-solid interfaces
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
Ultrasonic measurement
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Summary:The effect of microdestruction of diamond-like coatings (DLC), prepared by the deposition of low energy plasma fluxes onto a cold substrate, was studied as a function of the structural state of the DLC. The acoustic emission (AE) method was used to extract information on the microdestruction of carbon coatings. Films with diamond- and graphite-like structures were used in the studies. It is shown that the microdestruction of coatings of these types under local load is accompanied by AE signals, the character of the signals being determined by the type of coating. The region of microdestruction was examined directly by optical and electron microscopies. The relationship between the character of microdestruction of carbon coatings and some special features of AE signals is discussed.
ISSN:0925-9635
1879-0062
DOI:10.1016/0925-9635(94)05323-5