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

Quasi cobalt carbon diaphragm

A carbon film, a kind of technology, applied in the field of diamond-like carbon film, can solve the problems of high internal stress of diamond-like carbon film, weak bonding, and restrictions on the development and application of diamond-like carbon film

Inactive Publication Date: 2007-05-09
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bond between the diamond-like carbon film and the substrate is not firm, and it is easy to fall off
The reasons are: first, the DLC film has stable performance and does not react chemically with any substrate, so the connection between it and the substrate is an intermolecular force and the adhesion is weak; second, the DLC film and the substrate The difference in thermal expansion coefficient between materials is too large, resulting in the residual stress between the substrate and the DLC film and the high internal stress of the DLC film.
This limits the further development and application of diamond-like carbon films

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
  • Quasi cobalt carbon diaphragm
  • Quasi cobalt carbon diaphragm
  • Quasi cobalt carbon diaphragm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] In order to reduce the internal stress of the diamond-like carbon film and improve its adhesion to the substrate, the embodiment provides a diamond-like carbon film with a multi-layer structure, and the diamond-like carbon film is amorphous hydrogen-containing diamond-like carbon. Please refer to FIG. 1 , which is a schematic diagram of the structure of the diamond-like carbon film 10 . The number of layers contained in the diamond-like carbon film 10 is represented by n, and the value of n is an integer ranging from 6 to 30, and the composition of each layer is different from other layers. It is assumed that one end combined with the substrate is the first layer 11 , and the other end opposite to it is the nth layer 16 . Assuming that a certain layer is the mth layer, and m is an integer from 1 to n, the composition of the mth layer is a-C:H:(n-m+1)X. That is to say, the composition of the first layer 11 is: a-C:H:nX, the composition of the second layer 12 is: a-C:H:(...

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

No PUM Login to View More

Abstract

This invention provides a diamond-like carbon film, which is composed of n layers (n is 6-30). The component of each layer is diamond-like carbon containing C, H and X, where, X is Cr, Ti, Cr-Ti alloy or chromium nitride. The component of layer m is a-C: H :( n-m+1) X, where, m is 1-n. The atomic percentage of X is decreasing from the layer of 1 (nearest to the matrix) to n. The diamond-like carbon film can be used as a protection film for molds, cutters or magnetic storage media.

Description

【Technical field】 [0001] The invention relates to a film layer structure, in particular to a diamond-like carbon film applied to molds, cutters or magnetic storage media. 【Background technique】 [0002] Diamond-like carbon (Diamond-Like Carbon, DLC) was produced by Aisenberg et al. in the early 1970s by ion beam sputtering deposition technology. Since then, studies on the properties and applications of diamond-like carbon have been carried out one after another. [0003] As we all know, the chemical bonds of carbon allotropes (Allotropes) are: sp 1 Chain structure, sp 2 Graphite layered structure and sp 3 There are three forms of covalent bond diamond cubic structure, so carbon exists in various crystalline and amorphous solid forms. That is to say, there are many kinds of carbon materials composed of simple bonds or mixed bonds, and the mixture of different bonds will affect the electrical, optical, chemical and mechanical properties of the carbon materials. The so-cal...

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): C23C14/06C23C14/35
Inventor 陈杰良
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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