In-situ heating mechanical sample rod

Abstract

An embodiment of the invention relates to the technical field of high-temperature micro-nano experimental mechanics, and provides an in-situ heating mechanical sample rod, which comprises a sample rodbody, a tilting table, a driving module and an in-situ mechanical-thermal coupling microelectromechanical system used for realizing stretch, compression and heating functions of a sample, wherein a linear stepping motor and a driving rod are arranged in the sample rod body, and a connecting part of the tilting table is rotationally connected to the sample rod body; the linear stepping motor is connected to the driving rod for enabling the driving rod to carry out reciprocating rectilinear motion along the length direction of the sample rod body in order to realize the rotation of a mounting part of the tilting table; the driving module comprises a driver stage and a driver; the driver stage is arranged on the mounting part of the tilting table; and the driver is arranged on the driver stage, and the action end of the driver is connected to the in-situ mechanical-thermal coupling microelectromechanical system. According to the in-situ heating mechanical sample rod, the stress is applied in situ while the temperature of the sample is adjusted in order to study the mechanical states and properties of the sample at different temperature.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of high-temperature micro-nano experimental mechanics, and in particular to an in-situ heating mechanical sample rod. Background technique [0002] The atomic structure arrangement of a solid determines its macroscopic physical, chemical and mechanical properties. The service behavior, service life and elastic-plastic deformation mechanism of materials are closely related to their service conditions. Under the action of an external force-thermal coupling field, the mechanical behavior of the material will change, resulting in a change in its mechanical behavior and service life. Studying the evolution law of the microstructure of the material under service conditions and revealing its microcosmic mechanism will contribute to the service life of the material. Provides an important guarantee for security and stability. [0003] The transmission electron microscope is a powerful mean...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide an in-situ heated mechanical sample holder with fast thermal response rate, precise temperature control, and small thermal drift, so as to solve the heating area of ​​the existing dual-axis tilted in-situ mechanical sample holder of the transmission electron microscope There are many supporting structure materials, the sample has a long stable time at high temperature, and the disadvantages of large thermal drift

Images