Measuring method for diamond coating film-substrate interface bonding strength based on molecular dynamics

A technology of interface bonding strength and diamond coating, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of limitations, incapability of accurate quantitative detection of matrix shape, etc., and achieve the effect of convenient modeling

Inactive Publication Date: 2014-10-22
TONGJI UNIV
View PDF3 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome many deficiencies such as the incapability of accurate quantitative detection and the limitation of the shape of the substrate in the existing diamond coating film-substrate interface bonding strength detection method, the present invention provides a method for measuring the diamond coating film-base interface bonding strength based on mo

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
  • Measuring method for diamond coating film-substrate interface bonding strength based on molecular dynamics
  • Measuring method for diamond coating film-substrate interface bonding strength based on molecular dynamics
  • Measuring method for diamond coating film-substrate interface bonding strength based on molecular dynamics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1: A method for measuring the interfacial bonding strength of a diamond coating film based on molecular dynamics. Including the construction of the diamond coating film-base interface model, the molecular dynamics simulation calculation of the film-base interface, and the construction of the diamond coating film-base interface bonding strength prediction model, so as to realize the accurate quantitative measurement of the diamond coating film-base interface bonding strength, such as Figure 1 to Figure 8 Shown, the implementation of the present invention can carry out according to the following steps:

[0037] The first step: first construct the interface model of the diamond coating film base. The construction of the diamond coating film base interface model refers to the molecular dynamics modeling of the diamond coating film base interface with the help of Materials Studio software, and the establishment of a three-dimensional coordinate system in the molecul...

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

The invention discloses a measuring method for diamond coating film-substrate interface bonding strength based on molecular dynamics. The method is mainly characterized in that with the help of the molecular dynamics theory and simulating calculation software, a hard alloy substrate diamond coating film-substrate interface model is established, simulating calculation is performed on the mechanical property of a film-substrate interface, a hard alloy substrate diamond coating film-substrate interface bonding strength predicating model is established based on a simulating result, and the diamond coating film-substrate interface bonding strength is accurately measured through the predicting model. In this way, the defects that various existing experimental measurement methods, such as a scraping method, an indentation method and a bubbling method, are long in consumed time and low in measuring accuracy are overcome, a basis and a foundation can be provided for optimizing and industrializing a diamond coating technology, and the measuring method has wide application prospects.

Description

technical field [0001] The invention relates to a testing technique for quantitatively detecting the interfacial bonding strength of a diamond coating film on a cemented carbide substrate, in particular a testing technique for measuring the interfacial bonding strength of a diamond coating film using a molecular dynamics method, which belongs to the mechanical surface effect and surface technology fields. Background technique [0002] Diamond has become an ideal tool material due to its excellent properties such as high hardness, high thermal conductivity, low friction coefficient, low thermal expansion coefficient, and good chemical stability. It has been widely used in the field of diamond-coated cutting tools, but it has not yet Realize large-scale production. One of the main reasons is that there is a lack of unified standards for the evaluation of the intrinsic quality (mainly mechanical properties) of diamond coatings, especially the evaluation of the bonding stre...

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): G06F17/50
Inventor 简小刚张允华陈军
Owner TONGJI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap