Ultra-smooth basic structure as well as device for testing ultra-smooth friction coefficient of solid

A basic structure and super-slip technology, which is applied in the field of structural super-slip, can solve the problems of difficult non-destructive separation, difficult super-slip island-shaped objects, and increased test costs, so as to improve test speed, realize repeated use, and reduce test costs. Effect

Active Publication Date: 2019-06-28
SHENZHEN TSIMEC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the prior art, the patent CN103438348A discloses a super-slippery basic structure, which includes a base and a plurality of island structures located on the base, and the ends of the island structures have a protective layer. In actual operation, when using a push member When pressing on the protective layer, it is difficult to press the super slippery island-shaped object due to the smooth surface
Patent CN108845161A discloses an atomic force microscope probe, which includes a probe body and a contact body arranged on the needle tip side of the probe body. The connecting segment is connected to the needle tip, or the connecting segment is connected to the needle tip by other clamping or embedding methods. The above connection methods are to fix the connecting body on the needle tip. After the test is completed, the two are not easy to achieve non-destructive separation. After testing the superslip friction coefficient of the solid, the graphite island is discarded, which greatly increases the test cost

Method used

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  • Ultra-smooth basic structure as well as device for testing ultra-smooth friction coefficient of solid
  • Ultra-smooth basic structure as well as device for testing ultra-smooth friction coefficient of solid
  • Ultra-smooth basic structure as well as device for testing ultra-smooth friction coefficient of solid

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Experimental program
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Effect test

Embodiment 1

[0023] Embodiment one, such as Figure 1-2 As shown, a supersmooth basic structure is provided, including a substrate and a plurality of island structures located on the substrate, wherein each island structure includes an island cover 2 and an island body 3 with an atomically smooth surface, and the island The cover 2 is located on the upper surface of the island body 3 , and the upper surface of the island cover 2 is provided with the connecting unit 1 . The island body 3 has at least one super-slippery shear surface, and the upper and lower contact surfaces of the super-slippery shear surface are in a non-commensurate state.

[0024] The end of each island body 3 has an island cover 2, and the island cover 2 may be SiO 2 Protective layer, SiO deposited on the substrate by plasma chemical vapor deposition for patterning and etching of island structures during processing 2 The protective layer may have a thickness of 50nm-500nm.

[0025] Preferably, the substrate is graphi...

Embodiment 2

[0030] Embodiment two, such as image 3 As shown, a device for testing the coefficient of friction of solid superslip, which includes a pushing part 4 and the above-mentioned superslip basic structure, and the tip of the pushing part 4 is detachably connected with the connecting unit 2 . Using the device in the test of the solid superslip friction coefficient can better fix the superslip island body such as graphite island, and can control the movement of the island body more flexibly and accurately by pushing the parts, which improves the friction coefficient of the superslip device Test efficiency, in addition, after the test is completed, the needle tip and the super slippery island can be separated quickly and conveniently, which realizes the reuse of the super slippery island, simplifies the operation steps, improves the test speed, and greatly reduces the test time. cost.

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Abstract

The invention provides an ultra-smooth basic structure as well as a device for testing ultra-smooth friction coefficient of solid. The ultra-smooth basic structure comprises a base and a plurality ofisland-shaped structures positioned on the base, wherein each island-shaped structure comprises an island cover and an island body with an atomic-scale smooth surface; the island cover is positioned on the upper surface of the island body; a connecting unit is arranged on the upper surface of the island cover; and the connecting unit is separably connected with a push part. The device for testingthe ultra-smooth friction coefficient of solid comprises the push part and the ultra-smooth basic structure, and the connecting unit is separably connected with the push part, so that the island bodycan be fixed well, movement of the island body can be controlled flexibly and accurately and the test efficiency of the ultra-smooth device friction coefficient is improved; in addition, the connecting unit and the push part are separated conveniently, reutilization of the ultra-smooth island body is realized, the operation steps are simplified and the test cost is greatly reduced.

Description

technical field [0001] The invention belongs to the field of structural superslip, and more specifically relates to a superslip basic structure and a device for testing the friction coefficient of solid superslip. Background technique [0002] For a long time, friction and wear problems are not only closely related to manufacturing, but also directly related to energy, environment and health. According to statistics, about one-third of the world's energy is consumed in the friction process, and about 80% of machine parts failures are caused by wear and tear. Micro-electromechanical systems (MEMS) have the characteristics of small scale, light weight, and low energy consumption. However, as the characteristic scale decreases significantly, the specific surface area of ​​MEMS increases, and interface effects such as surface adhesion, friction, and wear are prominent. Issues such as friction and wear have become bottlenecks affecting the performance development of many devices...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/02
Inventor 杨德智张清卿
Owner SHENZHEN TSIMEC CO LTD
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