Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for modifying surface of metal cerium

A metal cerium modification technology, applied in the field of metal cerium surface modification, metal cerium surface nitriding and coating treatment to improve its anti-aging and corrosion performance, can solve the problem of easy oxidation and corrosion, affecting metal characteristics and surface appearance quality, aging and other problems, to achieve the effect of enhancing the anti-aging and corrosion performance and increasing the aesthetic effect of the surface

Active Publication Date: 2017-06-13
TSINGHUA UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the very active chemical properties of metal cerium, it is easy to oxidize and corrode at room temperature, and it will quickly lose its luster and age under atmospheric conditions, thus affecting its metal properties and surface appearance quality.
At present, the method of sealing metal cerium and storing it in a cool or kerosene medium is mainly used to passively slow down the oxidation and corrosion of metal cerium, but these methods require high air tightness, are easy to pollute metal cerium, and the storage effect is not ideal , metal cerium will still undergo serious oxidation corrosion

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
  • Method for modifying surface of metal cerium
  • Method for modifying surface of metal cerium
  • Method for modifying surface of metal cerium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1) The metal cerium sample (10mm×10mm×3mm) that has been polished, polished and ultrasonically cleaned is immediately placed on the substrate stage in the vacuum chamber of the dual ion beam sputtering deposition system, and the chamber is closed for vacuuming;

[0030] 2) The background vacuum reaches 8.5×10 -5 After Pa, the auxiliary source is fed with argon gas, the flow rate is 5 sccm, and the working gas pressure is 0.9×10 -2 Pa, the working parameters are auxiliary source ion energy 600eV (electron volts), beam current 35mA, the metal cerium sample is sputtered and cleaned for 15 minutes, and then the auxiliary source is stopped;

[0031] 3) The main source is connected with argon gas, the flow rate is 7sccm, and the working gas pressure is 1.5×10 -2 Pa, the working parameters are argon ion energy 2500eV, beam current 80mA, sputtering and cleaning the pre-polished and polished high-purity metal cerium target, preparing for reactive sputtering, and stopping the ma...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for modifying a surface of metal cerium, and belongs to the technical field of corrosion protection of rare earth metal. The method uses a double-ion beam sputtering deposition system for firstly performing the argon ion sputtering cleaning on the surface of the polished metal cerium; then, a cerium nitride plating layer is generated by the nitriding reaction sputtering treatmenet; finally, a ceramic target, such as titanium nitride is used for directly sputtering to generate a titanium nitride ceramic plating layer; and finally, a cerium nitride and titanium nitride composite double-layer plating layer is formed on the cerium surface. As the nitriding treatment is performed for the metal cerium, and the titanium nitride plating layer is deposited, the aging and corrosion resistance of the metal cerium is obviously improved; electrochemical polarization curve tests indicate that the corrosion current density of the metal cerium before and after the treatment can be reduced by a bout 5 times; and meanwhile, the cerium nitride and titanium nitride plating layers are both golden yellow plating layers, so that the surface beauty effect of the metal cerium is improved.

Description

technical field [0001] The invention relates to a method for modifying the surface of metal cerium, in particular to a method for improving the anti-aging and corrosion performance of the metal cerium surface by nitriding and coating treatment, and belongs to the technical field of rare earth metal corrosion protection. Background technique [0002] As an important rare earth element, metal cerium is often used as reducing agent, catalyst and alloy additive, and has important and extensive uses in modern industry. [0003] However, due to the very active chemical properties of metal cerium, it is easy to oxidize and corrode at room temperature, and it will quickly lose its luster and age under atmospheric conditions, thus affecting its metal properties and surface appearance quality. At present, the method of sealing metal cerium and storing it in a cool or kerosene medium is mainly used to passively slow down the oxidation and corrosion of metal cerium, but these methods re...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/06C23C8/36C23C14/46C23C28/04
CPCC23C8/36C23C14/0641C23C14/46C23C28/04
Inventor 张政军梁威刘柯钊胡殷陈志磊陈丽敏
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com