Check patentability & draft patents in minutes with Patsnap Eureka AI!

Molybdenum disulfide self-lubricating composite coating and preparation method and application thereof

A technology of composite coating and molybdenum disulfide, which is applied in the direction of coating, metal material coating process, gaseous chemical plating, etc., can solve the problems of poor coating quality and easy corrosion of equipment, and achieve less impurity content and improved The effect of wear resistance and flexible applicability

Active Publication Date: 2020-01-31
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, MoS 2 Self-lubricating coatings are rarely prepared using CVD processes
In these small amounts of CVD-MoS 2 In the study of self-lubricating coatings, some researchers use Mo halides such as MoF 6 、MoCl 5 Etc and H 2 S is used as a precursor, causing the device to be easily corroded; in addition, individual researchers use molybdenum carbonate (Mo(CO) 6 ), Mo-containing organic matter (Mo(s-t-Bu) 4 ) etc. and H 2 S as precursor, poor coating quality

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Molybdenum disulfide self-lubricating composite coating and preparation method and application thereof
  • Molybdenum disulfide self-lubricating composite coating and preparation method and application thereof
  • Molybdenum disulfide self-lubricating composite coating and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0078] Preparation method of molybdenum disulfide self-lubricating composite coating

[0079] The present application also provides a high-performance CVD-MoS with weak corrosion to equipment 2 A method for preparing a self-lubricating wear-resistant composite coating, wherein the raw materials containing sulfur source, molybdenum source, silver source and antimony source are placed in a reaction vessel, and prepared by chemical vapor deposition in an atmosphere containing reducing gas .

[0080] The method involves the following reaction process:

[0081] 1) Mo(VI) in the molybdenum source is reduced to Mo(IV) under the action of reducing gas;

[0082] 2) Mo(IV) reacts with a gaseous sulfur source during deposition to the substrate to form MoS 2 , the silver source is melted and then thermally evaporated to generate elemental Ag and doped to MoS 2 , and the antimony source is melted and thermally evaporated to generate elemental Sb and doped to MoS 2 middle;

[0083] 3)...

Embodiment 1

[0107] Example 1 Sample 1 # preparation of

[0108] First weigh 40mg of MoO with a purity of 99.5% 3 powder, 20 mg of Sb particles with a purity of 99.99%, and 100 mg of Ag powder with a purity of 99.99% were placed at one end of the ceramic boat, where MoO 3 powder and Ag powder are placed side by side, while the Sb grains are separated from the MoO 3 powder 2cm; put the cemented carbide substrate with titanium nitride (TiN) coating on the other end of the ceramic boat, and MoO 3 The powders are 7cm apart, and the ceramic boat is placed in the high-temperature zone of the tube furnace; 0.8g of sulfur powder with a purity of 99.95% is weighed and put into another ceramic boat, and the ceramic boat is placed in the low-temperature zone where the heating belt is wound. Then the tube furnace was sealed and evacuated, and then high-purity argon and hydrogen were introduced. After doing this twice, the tube furnace starts to heat up. It takes 10 minutes to heat the molybdenum ...

Embodiment 2

[0109] Example 2 Sample 2 # preparation of

[0110] First weigh 60 mg of MoO with a purity of 99.5% 3 powder, 25mg of Sb particles with a purity of 99.99%, and 150mg of Ag powder with a purity of 99.99% were placed at one end of the ceramic boat, where MoO 3 powder and Ag powder are placed side by side, while the Sb grains are separated from the MoO 3 powder 3cm; put the cemented carbide substrate with titanium nitride (TiN) coating on the other end of the ceramic boat, and MoO 3 The powders are 8cm apart, and the ceramic boat is placed in the high-temperature zone of the tube furnace; 1.2g of sulfur powder with a purity of 99.95% is weighed and put into another ceramic boat, and the ceramic boat is placed in the low-temperature zone where the heating belt is wound. Then the tube furnace was sealed and evacuated, and then high-purity argon and hydrogen were introduced. After doing this twice, the tube furnace starts to heat up. It takes 10 minutes to heat the molybdenum s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
The average particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a molybdenum disulfide self-lubricating composite coating and a preparation method and application thereof, and belongs to the field of solid lubricating materials. The molybdenum disulfide self-lubricating composite coating is doped with Sb and Ag, wherein the molar content of Ag and Sb in metal elements of the composite coating is 0.1%-2% and 0.5%-5% respectively. The preparation method of the molybdenum disulfide self-lubricating composite coating comprises the following steps of placing raw materials containing a sulfur source, a molybdenum source, a silver source and an antimony source into a reaction container, and preparing the coating through a chemical vapor deposition method in an atmosphere containing reducing gas. The composite coating can be used for abrasion resistance and corrosion prevention of the surfaces of components particularly with complex shapes and large sizes. According to the molybdenum disulfide self-lubricating composite coating, theSb and the Ag are introduced at the same time, and the structure of the MoS2 coating is more uniform and compact, so that the abrasion resistance of the coating is improved; and the preparation method can be implemented on components with large sizes and complex shapes, and the corrosiveness to a device is weak.

Description

technical field [0001] The application relates to a molybdenum disulfide self-lubricating composite coating and its preparation method and application, belonging to the field of solid lubricating materials. Background technique [0002] Molybdenum disulfide (MoS 2 ) As an excellent solid lubricant material, it has high application value in the field of supersolid lubrication, especially in reducing friction and wear in micromechanical electronic systems and aerospace industry, improving its performance and life, based on MoS 2 The advanced super solid lubrication technology has a strong application space. [0003] Due to its graphite-like laminated structure, MoS 2 As a self-lubricating solid lubricant, it is widely used in high temperature and vacuum environments. Correspondingly, MoS 2 Self-lubricating coatings are also receiving more and more attention. Although MoS 2 Self-lubricating coatings can be prepared by various methods such as physical vapor deposition (PVD...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C23C16/30
CPCC23C16/305
Inventor 易剑杨孟孟褚伍波马洪兵江南罗旭东
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com