System and method for testing mechanical-electrical coupling effect of electrical conducting functional material

Abstract

The invention discloses a system and a method for testing the mechanical-electrical coupling effect of an electrical conducting functional material . The system comprises an electrical conducting functional material sample, a sample electrode, an insulation tape, an external wire on the electrode, a sample clamping device, a displacement sensor, a transmission shaft, a driving motor, a force sensor, a handheld four-point probe, a digital source meter B, a digital source meter A and a DC power supply, wherein an integral load-displacement curve can be obtained through accurate control of parameters such as voltage strength, conduction time and loading speed; mechanical and electrical properties such as elasticity modulus, tensile strength, elongation at break, yield strength, integral volume resistivity and micro-area volume resistivity distribution of a material under the action of different force fields and electric fields can be obtained through further calculation. Therefore, measurement and analysis of the mechanical-electrical coupling effect of the electrical conducting functional material can be realized accurately and reliably, and the system and the method are suitable for electrical conducting functional materials such as conductive macromolecule, piezoceramics, a polymer-matrix composite, a ceramics-matrix composite, and a metal-matrix composite.

Description

technical field [0001] The invention relates to a testing technology for electromechanical coupling effect, in particular to a testing system and a testing method for electromechanical coupling effect of conductive functional materials. Background technique [0002] With the continuous development of electronic technology and material science, new conductive materials with multiple functions such as power transmission, signal propagation, electromagnetic shielding, wave absorption, catalysis, sensing and energy storage have been developed by leaps and bounds, especially conductive polymers, Piezoelectric ceramics, polymer matrix, ceramic matrix and metal matrix composite materials have been widely used in transistors, sensors, electrodes, electric heaters, supercapacitors, shielding shells, electrocatalysis, solar thin films, energy storage batteries, electronic shielding films, anti- Electrostatic coatings, touch screens and flexible devices are closely related to the devel...

AI Technical Summary

Problems solved by technology

[0004] The test and analysis of electromechanical coupling effects play an important guiding role in the development and application of conductive functional materials. The existing experimental methods for testing mechanical and electrical properties are all aimed at the measurement of a single performance, which cannot meet the testing needs of coupling effects. There is an urgent need for a A test system and test method capable of accurately and reliably measuring and analyzing the mechanical properties, electrical properties and coupling effects of materials under different electric and force fields, so as to realize the measurement and analysis of the electromechanical coupling effects of conductive functional materials

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