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Gravity Series In-Situ Holders(Nano Indentation&Heating&Biasing)

Product Features

Gravity Series In-Situ Holders(Nano Indentation&Heating&Biasing)applies mechanics, electric field and thermal field to the sample through MEMS chip.The construction of force, electrical, thermal composite multi-field automatic control and feedback in the in-situ sample station Measurement system, combined with EDS, EELS, SAED, HRTEM, STEM and other different modes,realizes real-time and dynamic monitoring of samples in vacuum with temperature, electric field and application at the nano level microstructure evolution, phase transition, elemental valence state, microscopic stress and surface/boundary resulting from afterforce changes Key information such as the structure and composition evolution .

  • Product composition
  • Unique Advantages
  • Functional Parameters
  • Application
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    a.Gravity Series In-Situ Holders(Nano Indentation&Heating&Biasing)
    b.Nano Mechanics Heating & Biasing Chip
    c.Nano Indentation&Heating&Biasing Measurement Control Software
    d.Thermal & Voltage Controller
    e.Nano Probe Controller
    f.Accessory Package

     

     

     

     

     

     

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    Excellent gravity properties ·1.High precision piezoelectric ceramic drive, nanometer level precision digital accurate positioning.
    ·2.Realize compression, tensile, bending and other micromechanical properties testing under 1000℃ heating conditions.
    ·3.Industry-leading nN-class mechanical measurement noise.
    ·4.Continuous load-displacement-time data real-time automatic collection function.
    ·5.With the control function of constant load, constant displacement and cyclic loading, it is suitable for the research of creep characteristics, stress relaxation and fatigue properties of materials.
    Excellent thermal properties ·1.High precision infrared temperature calibration, micron level high resolution thermal field measurement and calibration, to ensure the accuracy of temperature.
    ·2.The UHF temperature control mode with two electrodes can eliminate the influence of wire and contact resistance, measures the temperature and electrical parameters more accurately.
    ·3.The high stability  precious metal heating wire (non-ceramic material) ,its not only a thermal guide material but also a thermal sensitive material. It  is used resistance has a good linear relationship with temperature.The heating area covers the whole observation area, and the heating and cooling speed is fast,and the thermal field is stable and uniform,Temperature fluctuation in steady state is less than±0.01℃.
    ·4.Adopt the closed loop high-frequency dynamic control and feedback of ambient temperature control method,high-frequency feedback control to eliminate errors,achieving tempe rature control accuracy of ±0.01℃.
    ·5.Unique multi-stage composite heating MEMS chip design, controls the heat diffusion during heating process,greatly inhibits the heat drift during heating process,tensures the efficient observation o f the experiment.
    Excellent electrical properties ·1.The protective coating on the surface of the chip ensures low interference and accuracy of electrical measurements,making current measurements up to PA level.
    ·2.MEMS chip with special structure design can simultaneously load electric field, thermal field and mechanical functions independently .
    Intelligent software ·1.Man-machine separation,software remote adjustment laser band and intensity,program automatic control of tilt Angle.
    ·2.The whole process is equipped with precision automation equipment to assist manual operation and improve experimental efficiency.
    ·3.Built-in calibration program for absolute temperature scale,The chip can re-fit and correct the curve according to the change of resistance va lue each time to ensure the accuracy of temperature measurement,and ensure the reproducibility and reliability of high temperature test.

     

     

     

     

     

  •  Category  Index Numerical value
    Basic parameters Shaft material High strength titanium alloy
    Mode of control High precision piezoelectric ceramics
    Tilt Max α≥±20°,Tilt resolution<0.1°(depends on pole piece)
    Applicable TEM brand Thermo Fisher/FEI, JEOL, Hitachi
    Applicable pole piece types ST, XT, T, BioT, HRP, HTP, CRP
    (HR)TEM/STEM Available
    (HR)EDS/EELS/SAED Available

           

    Learn more

  • MEMS system is paid more and more attention by people,There are  many difficulties in conventional tensile and compression experime nts for samples with sizes below 100 microns.Nanocompression exp eriment is becoming the main way to measure mechanical properties  at micro/nano scale because it only generates a small pressure in the  local volume of material surface.Therefore,it is necessary to conduct experimental research on material deformation behavior at micro a nd nano scale.In order to study the deformation behavior of single-cr ystal face-centered cubic materials at micro or nano scale,the author s analyzed the initial plastic deformation behavior of copper nanocry stal columns and the influence of crystal defects on the initial plastic deformation of single-crystal copper by means of nanocompression e xperiment.The results show that copper columns exhibit a greater de gree of elastic deformation in the process of nanocompression.At th e same time,the reason and the influence of the bulge of the material s around the compression are analyzed.It is concluded that the bulge  of the materials around the compression of copper nanomaterials wi ll lead to the increase of the nanohardness and the measured elastic modulus.In order to study the influence of surface topography inho mogeneity on the initial plastic deformation behavior of copper nano rods,nano-scale surface defects were prepared on the surface of cop per nanorods by heating method,and the experimental data of nano-compression of surface defects were compared and analyzed.The re sults show that the existence of surface defects will greatly affect the  initial plastic deformation of copper nanorods.The morphology of t he dislocation around the compression point of the copper nanocolu mn was observed by transmission electron microscope.Besides the d islocation around the compression point,the coexistence of layered          dislocation,partial dislocation and dislocation ring was also observed. The results show that the initial plastic deformation of the copper nano column is closely related to the occurrence of dislocation.

     

     

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