In-situ nano-indentation tester based on adjustable stretching-bending preload

A nano-indentation and preload technology, which is applied in the direction of applying stable bending force to test material strength, using stable tension/pressure to test material strength, and testing material hardness, etc., to achieve good neutrality, easy to observe and image. The effect of recording
CN103308404AActive Publication Date: 2013-09-18JILIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JILIN UNIV
Publication Date
2013-09-18

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Abstract

The invention relates to an in-situ nano-indentation tester based on an adjustable stretching-bending preload, and belongs to the field of electromechanical precision scientific instruments. The in-situ nano-indentation tester comprises an in-situ nano-indentation testing module, a stretching preload loading module and a bending preload loading module, wherein the in-situ nano-indentation testing module consists of a precision displacement / force loading unit and a load / displacement signal detection unit; the stretching preload loading module consists of a precision driving unit A, a precision transmission unit A, a load / displacement signal detection and control unit A and a clamping unit A; the bending preload loading module consists of a precision driving unit B, a precision transmission unit B, and a load / displacement signal detection and control unit B. The in-situ nano-indentation tester has the advantages of small size, compact structure and high testing precision; supplied test contents are rich; the deformation / displacement / load rate can be controlled; the in-situ nano-indentation tester can be arranged on carrying platforms of various main-stream electronic microscopic vacuum cavities and is compatible with imaging equipment; the application range is wide.
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Description

technical field

[0001] The invention relates to the field of mechatronic precision scientific instruments, in particular to an in-situ nano-indentation tester based on an adjustable tensile-bending preload. Background technique

[0002] In-situ micro-nano mechanical testing technology refers to the process of testing the mechanical properties of specimen materials at the micro-nano scale, through imaging instruments such as electron microscopes, atomic force microscopes, or optical microscopes, to measure the microscopic deformation, damage, and damage of materials under load. It is a mechanical testing technique for dynamic monitoring of the whole process of failure and destruction. In the category of many nanomechanical tests, parameters such as elastic modulus, yield strength, tensile strength, flexural strength, flexural modulus, hardness, and shear modulus are the most important research objects in the testing of mechanical properties of materials. A variety of tes...

Claims

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