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A kind of ag-max phase nanocomposite coating and deposition method thereof

A nano-composite and coating technology, applied in the field of surface engineering, can solve problems that have not been recorded in any way, and achieve the effects of good uniformity, fine grains, and good arc ablation resistance

Active Publication Date: 2019-08-23
苏州博志金钻科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no record of using the pulsed laser deposition method to coat the surface of the contact.

Method used

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  • A kind of ag-max phase nanocomposite coating and deposition method thereof
  • A kind of ag-max phase nanocomposite coating and deposition method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] First, the copper substrate is mechanically polished, then soaked in acetone and absolute ethanol for ultrasonic cleaning, and then placed in double-distilled water for ultrasonic cleaning to further clean the contact and target surface, and then air-dried with hot air.

[0042] Set the installation distance between the target and the substrate to 5cm, close all the inlet pipes and outlet pipes after installation, and vacuumize the entire cavity so that the vacuum degree in the entire cavity reaches 1.0×10 -5 Pa. Turn on the substrate heater and heat the temperature of the copper substrate to 500°C. At the same time, pay attention to the change of the pressure in the cavity and continue to evacuate outward to prevent the pressure inside the cavity from rising. After heating the temperature of the copper substrate to 500°C, open the inlet pipe to let in argon gas, control the pressure in the chamber to reach the specified deposition pressure value, and then stop the gas ...

Embodiment 2

[0044] First, the copper substrate is mechanically polished, then soaked in acetone and absolute ethanol for ultrasonic cleaning, and then placed in twice-distilled water for ultrasonic cleaning to further clean the contact and target surface, and then air-dried with hot air.

[0045] Set the installation distance between the target and the substrate to 7cm, close all the inlet pipes and outlet pipes after installation, and vacuumize the entire cavity so that the vacuum degree in the entire cavity reaches 1.0×10 -5 Pa. Turn on the substrate heater and heat the copper substrate to 500°C. At the same time, pay attention to the change of the pressure in the cavity and continue to evacuate outward to prevent the pressure inside the cavity from rising. After heating the temperature of the copper substrate to 500°C, open the inlet pipe to let in argon gas, control the pressure in the chamber to reach the specified deposition pressure value, and then stop the gas flow. A KrF excimer...

Embodiment 3

[0047] First, the copper substrate is mechanically polished, then soaked in acetone and absolute ethanol for ultrasonic cleaning, and then placed in twice-distilled water for ultrasonic cleaning to further clean the contact and target surface, and then air-dried with hot air.

[0048] Set the installation distance between the target and the substrate to 8cm, close all the air intake pipes and air outlet pipes after installation, and vacuumize the entire cavity so that the vacuum degree in the entire cavity reaches 1.0×10 -5 Pa. Turn on the substrate heater and heat the copper substrate to 500°C. At the same time, pay attention to the change of the pressure in the cavity and continue to evacuate outward to prevent the pressure inside the cavity from rising. After heating the temperature of the copper substrate to 500°C, open the inlet pipe to let in argon gas, control the pressure in the chamber to reach the specified deposition pressure value, and then stop the gas flow. A Kr...

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Abstract

The invention discloses an Ag-MAX phase nanometer composite plating layer and a deposition method thereof. A copper contact is used as a basal body; an Ag-MAX phase composite material is used as a target; and a pulse laser deposition method is adopted to form a compact and two-phase uniform nanometer composite material of 100 nm-10 microns on the surface of the contact basal body. A MAX phase is used as excellent elastic modulus and hardness of a ceramic material, so that the arc ablation resistance and the welding resistance of an Ag contact can be improved; and the excellent self-lubricating performance facilitates prolonging the service life of the contact. The method can control the plating layer thickness through controlling the laser pulse number, and controls the plating layer components through controlling the target components to obtain the composite material plating layer with different ratios. Experiments represent that the method can obtain an Ag base composite material with a nanocrystalline structure and uniform two-phase distribution; when the electric conductivity is guaranteed, the hardness, the wear resistance and the ablation resistance are effectively improved; the service life can be prolonged; and the application and popularization values are higher.

Description

[0001] 【Technical field】 [0002] The invention belongs to the field of surface engineering and relates to an Ag-MAX phase nanocomposite coating and a deposition method thereof. [0003] 【Background technique】 [0004] Ag-based contacts are currently the most widely used contact materials in the low-voltage field. ZnO and SnO are mainly compounded with Ag. 2 , CuO, Ag-SnO 2 It has good properties such as welding resistance, arc ablation resistance, wear resistance and non-toxic and harmless, but there are still great deficiencies at present, mainly: under repeated arc contact, SnO 2 It will be enriched on the surface of the contact, causing the contact resistance to increase and the temperature to rise faster; the silver matrix and SnO 2 The wettability of SnO is not good. 2 Particle hardness is high and brittle, Ag-SnO 2 The molding and subsequent processing of SnO are more difficult; 2 The particles cannot be evenly distributed in the silver matrix, and are easy to form ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/06C23C14/28
Inventor 宋忠孝张庆丰孙宇邓子豪关博远庄智鸿崔笑千朱学政周学松
Owner 苏州博志金钻科技有限责任公司
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