Super-lubricity performance metal/hydrogen-containing carbon composite thin film and preparation method thereof

Abstract

The invention relates to a super-lubricity performance metal / hydrogen-containing carbon composite thin film. The composite thin film comprises a hydrogen-containing carbon thin film deposited on a base material or the surface of a part and a metal thin film (gold, silver, copper and the like) deposited on the surface of the hydrogen-containing carbon thin film, wherein the carbon thin film is thehydrogen-containing carbon thin film with the hydrogen content of 15% to 28%, the thickness is 800 nm, and the thickness of the metal thin film is less than or equal to 100 nm. A target thin film containing hydrogen carbon is prepared by plasma chemical vapor deposition, and magnetron sputtering and the like, then metal is loaded through a high power micropulse magnetron sputtering or evaporationplating mode, and the super-lubricity performance metal / composite thin film containing hydrogen carbon can be obtained. In a friction process, the metal can catalyze amorphous hydrogen-containing carbon to form sequential multilayer graphene structures, and incommensurate contact of the multilayer graphene structures can achieve super-lubricity in a macro-scale atmospheric environment, an inertiaatmosphere, and vacuum. As a result, engineering application of a super-lubricity technology under the condition of cross-environment can be expected to achieve.

Description

Technical field [0001] The invention relates to the preparation of a hydrogen-containing carbon composite film, in particular to a super-slip metal / hydrogen-carbon composite film and a preparation method thereof, belonging to the field of solid lubrication and tribology. Background technique [0002] Friction is accompanied by the origin of life and the development of human society. In the 21st century, friction and lubrication have become an inseparable part of the development of human civilization and technological progress. About 1 / 3~1 / 2 of the primary energy used in the world is consumed by friction, and 80% of the vulnerable parts of mechanical products are scrapped and replaced due to wear exceeding the limit. Abrasion is not only the loss of materials, but also the waste of energy and the emission of pollutants caused by friction. According to reports, 23% of energy consumption in industrial countries is due to friction. Among them, 80% of the failures of mechanical comp...

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Problems solved by technology

Later, the ultra-smoothness of double-walled carbon nanotubes was discovered ( Nature Nanotechnology, 2013, 8(12):912-916 ), Zheng Quanshui and Wei Fei et al. further researched, using centimeter-scale carbon nanotubes to expand the super-lubricating scale from the micron scale to the centimeter scale ( Nano Lett.20161621367- 1374; Phys. Rev. Lett. 97, 025501 ), but the conditions for achieving super-slip are harsh, and it is still super-slip on the microscopic scale

However, since the preparation of large-area single-crystal graphite on the macro scale cannot be realized, and it is highly dependent on the environment, it is difficult to achieve engineering applications based on graphene and carbon nanotubes.

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