SEM in-situ stretching tableMainly used for real-time observation of the dynamic deformation and fracture process of materials under mechanical loads at the microscale, revealing the relationship between material microstructure and properties, optimizing material preparation processes, and supporting the research and application of new materials. The following are specific application directions:
1、 Revealing the relationship between material microstructure and properties
Dynamic observation of deformation mechanism
Real time capture of changes in the microstructure of material surfaces (such as slip band generation, crack initiation and propagation, phase transition behavior, etc.) during mechanical testing processes such as stretching, compression, and bending, combined with stress-strain curves, to quantify the impact of microstructure on material properties.
Example: In the study of metal materials, it has been found through in-situ observation that grain boundary slip can induce crack branching, thereby improving material toughness; Observing the passivation mechanism of crack tips at high temperatures in ceramic materials to guide the design of toughening structures.
Multi field coupling test
Integrate high temperature (up to 1200 ℃), low temperature (-190 ℃), or environmental modules such as electric and magnetic fields to simulate the behavior of materials under actual service conditions.
Case: Study the residual stress distribution of high-temperature alloys used for aircraft engine blades under thermal cycling, or the volume expansion and crack initiation of battery electrode materials during charge and discharge processes.
2、 Optimize material preparation process
Real time monitoring of preparation process
Observe the morphological changes of materials during processes such as heat treatment, sintering, and coating deposition, and identify the optimal process parameters.
Example: In the preparation of high-strength aluminum alloys, it was found through in-situ tensile testing that controlling the heat treatment temperature can achieve a balance between strength and toughness; Optimize the interfacial bonding strength between fibers and matrix in composite material research.
Failure Analysis
By combining EBSD (electron backscatter diffraction) or EDS (energy dispersive spectroscopy), the microscopic origin of material fracture (such as inclusions, pores, grain boundary defects) can be located, providing a basis for process improvement.
3、 Research and Application of New Materials
Development of Energy Materials
Study the volume change of negative electrode materials in lithium-ion batteries during charge discharge cycles, or the interfacial stability of solid electrolyte materials, to guide material design.
Data support: At a high temperature of 1200 ℃, nanoscale resolution microscopic imaging was achieved through an in-situ stretching stage to reveal the creep mechanism of high-temperature alloys.
Biomedical materials
To observe the deformation behavior of biomaterials such as hydrogels and polymer films in the tensile process, and to evaluate the compatibility between their biocompatibility and mechanical properties.
Case: By changing the material structure and composition ratio, a balance of high strength, high toughness, and high biocompatibility can be achieved.
Nanomaterials and Coatings
Study the interfacial debonding behavior of nano particle reinforced composite materials, or the anti stripping performance of hard coatings during friction and wear processes.
Technological breakthrough: The in-situ high-temperature stretching table developed by Qiyue Technology has overcome the electromagnetic interference problem of secondary electronic detectors and heating modules, achieving stable imaging with a resolution of 10nm at 1200 ℃.
4、 Technical advantages and typical products
core functionality
High precision loading: Load range from 10N to 5000N, displacement accuracy up to nanometer level (such as 100nm), supporting constant speed or constant force loading modes.
Multimodal testing: It can achieve various mechanical tests such as tension, compression, bending, shear, fatigue, etc., and synchronously collect SEM images and mechanical data.
Environmental adaptability: Integrated liquid nitrogen refrigeration or resistance heating module, supporting temperature testing from -190 ℃ to 1200 ℃.