Device for detecting friction state of hydrogen-containing diamond-like carbon film in real time and application

Abstract

The invention relates to the technical field of friction state detection, in particular to a device for detecting the friction state of a hydrogen-containing diamond-like carbon film in real time and application. The invention provides a device for monitoring the friction state of a hydrogen-containing diamond-like carbon film in real time. The device comprises a substrate, a conductive material and a light-emitting device, a hydrogen-containing diamond-like carbon film is arranged on the surface of the substrate; the substrate, the light-emitting device and the conductive material are sequentially connected through wires. And the hydrogen-containing diamond-like carbon film is in dynamic friction contact with the conductive material. According to the device, the friction state of the hydrogen-containing diamond-like carbon film can be monitored in real time, and modular and small-volume monitoring is realized at the same time.

Description

technical field [0001] The invention relates to the technical field of friction state detection, in particular to a device and application for real-time detection of the friction state of a hydrogen-containing diamond-like carbon film. Background technique [0002] Friction and friction state detection occupy an important position in the healthy development of society. The direct loss of primary energy due to friction and wear failure and the indirect loss caused by equipment failure are extremely serious. Antifriction and wear resistance have become a factor that cannot be ignored in material design and equipment components. The hydrogen-containing diamond-like carbon film is an excellent solid lubricating film due to its weak mechanical interlock and low interfacial adhesion due to its smooth surface. No matter in air, lubricating medium, inert gas and high vacuum environment, its friction performance is better than ordinary friction pair materials. Therefore, it is wid...

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Problems solved by technology

However, the above-mentioned friction monitoring methods have great limitations on the monitoring of abnormal friction states, and cannot reflect the abnormal states in the friction process well.

At the same time, since spectral analysis, in-situ Raman broad spectrum, in-situ infrared spectroscopy, and friction-based noise-based instruments all require very expensive or bulky instruments, they cannot be well integrated with various equipment; while triboluminescence and tribochemical The reaction requires a special system, and only a few systems can meet its application conditions, which is not universal; frictional heat generation also requires the installation of thermocouples or inductive temperature measuring elements near the friction pair, and it cannot be effective for the friction state For the conventional triboelectrification test of broken jade, although most of the friction state detection can be realized, it cannot be applied due to the need for professional testing instruments, such as surface potential measuring instruments, current amplifiers or voltage amplifiers. For actual friction failure detection

It can be seen that there are some limitations in the above-mentioned monitoring methods, and it is impossible to realize online real-time detection and apply it to actual modularization and small-volume detection.

At the same time, although there are many methods for detecting the friction state of materials mentioned above, the existing detection methods are relatively static, and cannot objectively reflect the change of interface wettability during the actual working condition, and it is difficult to determine the wettability of the interface in the actual process. Prediction of status changes

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