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Variable magnetic field magnetron sputtering coating device and preparation method of high-conductivity carbon-based coating

A magnetron sputtering coating, sputtering coating technology, applied in the direction of sputtering coating, coating, metal material coating process, etc., can solve the difficulty of obtaining high conductivity and excellent corrosion resistance carbon-based coating at the same time, etc. problem, to achieve the effect of increasing the sp2 bond content, high conductivity, and increasing the coverage area

Active Publication Date: 2021-09-24
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The control methods for the conductivity and corrosion resistance of carbon-based coatings are mutually restrictive, and it is difficult to obtain carbon-based coatings with high conductivity and excellent corrosion resistance at the same time. Therefore, it is necessary to develop new equipment for the preparation of high-conductivity and corrosion-resistant carbon-based coatings. and coating preparation method

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  • Variable magnetic field magnetron sputtering coating device and preparation method of high-conductivity carbon-based coating
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  • Variable magnetic field magnetron sputtering coating device and preparation method of high-conductivity carbon-based coating

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preparation example Construction

[0054] Another aspect of the embodiments of the present invention provides a method for preparing a highly conductive carbon-based coating, the preparation method is mainly implemented based on the variable magnetic field magnetron sputtering coating device, and the preparation method includes:

[0055] Set the substrate to be coated on the rotating mechanism in the vacuum chamber;

[0056] A chromium target is set on the first variable magnetic field magnetron cathode, and a carbon target is set on the second variable magnetic field magnetron cathode;

[0057] In a protective atmosphere, use the chromium target as the sputtering target, adjust the angle of the permanent magnetic column outside the first variable magnetic field magnetron cathode by rotating the connecting shaft, and apply a high-energy pulse voltage to the first variable magnetic field magnetron cathode ; Simultaneously applying a negative electrode pulse voltage to the substrate, thereby forming a metal chrom...

Embodiment 1

[0075] refer to figure 1 , the embodiment of the present invention provides a variable magnetic field magnetron sputtering coating device, including a vacuum chamber 1, a variable magnetic field magnetron cathode, a turntable 22, an auxiliary cathode 32, and a vacuum assembly 11 communicated with the vacuum chamber 1 A sputtering coating area is arranged inside the vacuum chamber 1 ; the variable magnetic field magnetron cathode is used to sputter a predetermined film material to the substrate 21 on the sample holder 2 arranged in the vacuum chamber 1 .

[0076] Wherein, the variable magnetic field magnetron cathode includes a first variable magnetic field magnetron cathode 4 and a second variable magnetic field magnetron cathode 3, a chromium target 41 is set on the first variable magnetic field magnetron cathode 4, and a second variable A carbon target 31 is arranged on the magnetic field magnetron cathode 3; in the present embodiment, the specific structures of the first va...

Embodiment 2

[0102] In this embodiment, based on the variable magnetic field magnetron sputtering coating device of Embodiment 1, a conductive carbon film is prepared on a 316L stainless steel substrate, and the specific process is as follows:

[0103] In this embodiment, a conductive carbon film is prepared on a 316L stainless steel substrate, and the specific process is as follows:

[0104] (1) First, after the base material 21 to be coated is ultrasonically treated and dried, it is pasted on the sample holder 2 and placed on the turntable 22 in the vacuum chamber 1, wherein the first variable magnetic field magnetron cathode 4 The installation target is a chromium target, the installation target of the second variable magnetic field magnetron cathode 3 is a carbon target, and the vacuum assembly 11 is opened for vacuuming.

[0105] (2) When the vacuum degree reaches the requirement, introduce argon gas, adjust the air pressure to 20mTorr, apply a 650V pulse negative bias on the sample h...

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Abstract

The invention discloses a variable magnetic field magnetron sputtering coating device and a preparation method of a high-conductivity carbon-based coating. The variable magnetic field magnetron sputtering coating device comprises a vacuum cavity, a variable magnetic field magnetron cathode, a rotating mechanism and an auxiliary cathode, a sputtering coating area is arranged in the vacuum cavity, the variable magnetic field magnetron cathode is used for sputtering a preset film material to a base material arranged in the vacuum cavity, the rotating mechanism is used for bearing the base material, and the rotating mechanism is used for controlling the base material to move relative to the variable magnetic field magnetic control cathode. The auxiliary cathode is arranged in the sputtering coating area. According to the variable magnetic field magnetron sputtering coating device, the variable magnetic field magnetron cathode is an adjustable magnetic field, the balance degree of the magnetic field is regulated and controlled by adjusting the angle of a magnetic column, a metal transition layer and a carbon-based coating are prepared respectively, and meanwhile, the auxiliary cathode is additionally arranged in a carbon target plasma region, so that the compact high-conductivity corrosion-resistant carbon-based coating is formed.

Description

technical field [0001] The invention belongs to the technical field of magnetron sputtering coating, and in particular relates to a variable magnetic field magnetron sputtering coating device and a preparation method of a high-conductivity carbon-based coating. Background technique [0002] Hydrogen energy and fuel cells are listed as national strategic emerging industries, among which proton exchange membrane fuel cells (PEMFCs) account for 83% of fuel cells, becoming the key to technological competition in the battery industry. However, under the high temperature and acidic working environment of PEMFCs, the high interfacial contact resistance and corrosion of the metal bipolar plate, the core component, are the key technical bottlenecks that affect the battery life and development. [0003] The use of surface coating technology can improve the electrical conductivity and corrosion resistance of the metal plate on the basis of maintaining the excellent performance of the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/06
CPCC23C14/35C23C14/0605Y02E60/50
Inventor 汪爱英陈仁德张栋左潇
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI