Method for testing elasticity modulus of nano thin film on flexible substrate

A flexible substrate, elastic modulus technology, applied in the application of stable tension/pressure to test material strength, measuring device, strength characteristics, etc., can solve problems such as insufficient research and lack of experimental testing methods for nanofilm elastic modulus

Active Publication Date: 2019-02-01
TSINGHUA UNIV
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Through literature research and analysis, it can be seen that although relevant technologies have been proposed in the study of the compression behavior of the film-substrate structure...

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 testing elasticity modulus of nano thin film on flexible substrate
  • Method for testing elasticity modulus of nano thin film on flexible substrate
  • Method for testing elasticity modulus of nano thin film on flexible substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The elastic modulus testing method of the nano film on the flexible substrate that the present invention proposes, comprises the following steps:

[0023] (1) Build a modulus of elasticity test device, its structure is as follows figure 1 with figure 2 As shown, the testing device includes a moving mechanism and a testing mechanism. The motion mechanism includes a stepper motor 8, a primary reducer 11, a secondary reducer 12, a ball screw 9, a left lead screw nut 7 and a right lead screw nut 13. The stepper motor 8 is installed on the base 17, the output shaft of the stepper motor 8 is connected with the primary reducer 11 and the secondary reducer 12 in turn, the secondary reducer 12 is connected with the ball screw 9, and the left screw nut 7 Linkage with the right lead screw nut 13 and the ball screw 9, the two ends of the ball screw 9 are supported in the support seat 6, and the support seat 6 is fixed on the base 17. The test mechanism includes a flexible base ...

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 relates to a method for testing elasticity modulus of a nano thin film on a flexible substrate, and belongs to the technical field of mechanical property testing of the nano thin films.According to the method, on the basis that a traditional stepping motor is combined with a ball screw in a loading mode, an upper baffle piece, a lower baffle piece and a sliding block are designed, wherein the position relation among the upper baffle piece, the lower baffle piece, the sliding block and the flexible substrate is adjustable, so that it is ensured that the pre-stretched flexible isnot affected by the contact of other components, a coating area on the surface of the substrate is controlled, and the surfaces of an upper part and a lower part of the substrate can be coated symmetrically under a pre-stretching condition; in addition, the requirement for synchronous testing of the deformation of a coating-free part and a coating part of the flexible substrate in the compressionprocess is met. In addition, the combination of the pre-stretching technology and a strain difference method is achieved for the first time, the problem of easy buckling of the thin film in compression is solved, and the elasticity modulus of the nano thin film on the flexible substrate is obtained.

Description

technical field [0001] The invention relates to a method for testing the elastic modulus of a nano film on a flexible substrate, belonging to the technical field of testing the mechanical properties of a nano film. Background technique [0002] The rapid development of microelectromechanical systems (MEMS) and flexible electronics has promoted the development and application of more and more new technologies, which have attracted widespread attention from academia and industry, such as microsensors, electronic skin, and bendable displays. As one of the basic structures, functional thin films (generally tens to hundreds of nanometers in thickness) are usually deposited on flexibly deformable polymer substrates. In actual use, these systems are subjected to complex mechanical loads, and their lifetime and performance strongly depend on the mechanical properties of the film. Therefore, it is very important to develop relevant testing techniques for the mechanical properties of...

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): G01N3/08
CPCG01N3/08G01N2203/0075G01N2203/0282
Inventor 何巍谢惠民
Owner TSINGHUA 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