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Volcano Series In-Situ Holders (Heating&Biasing&High Tilt)

Product Features

The Volcano Series In Situ Holders (Heating&Biasing&High Tilt) use MEMS chips to apply thermal and electric field control to the samples, and construct a thermoelectric composite multi field automatic control and feedback measurement system in a high angle sample holder. Combined with various modes such as EDS, EELS, SAED, HRTEM, STEM, etc., it achieves real-time and dynamic monitoring of key information such as microstructure, phase transition, element valence state, microstress, and atomic level structure and composition evolution of the samples under vacuum environment with temperature and electric field changes at the nano .

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Product composition
Unique Advantages
Functional Parameters
Application

a.Volcano Series In-Situ Holders (Heating&Biasing&High Tilt)

b.MEMSHeating & Biasing Chip

c.Heating Control Software

d.Thermal Controller

e.Double Tilt Controller

f.Accessory Package

More key information	· Tilt Angle ≥±75°, more 2D imaging information can be obtained through a range of different tilt angles.
Excellent electrical properties	·1. The chip electrode with unique design is adopted for analog verification. The electric field distribution is uniform and the potential is stable. The protective coating on the chip surface ensures low noise and accuracy of electrical measurement, and the current measurement accuracy can reach pA level.
Excellent electrical properties	·2.MEMS micro-machining special design, electrical test and characterization can be carried out at the same time in the heating process, without affecting temperature stability.
Excellent thermal properties	·1. High precision infrared temperature measurement and calibration, micron level high resolution thermal field measurement and calibration, to ensure the accuracy of temperature.
	·2. High stability precious metal heating wire (non-ceramic material) is used, which is both a thermal conductive material and a thermal sensitive material, its resistance has a good linear relationship with temperature, the heating area covers the entire observation area, the heating and cooling speed is fast, the thermal field is stable and uniform, and the temperature fluctuation is ≤±0.01℃ in a stable state.
	·3. High frequency dynamic control of closed loop and feedback of ambient temperature control mode, high frequency feedback control to eliminate errors, temperature control accuracy of ±0.01℃.
	·4. Unique multi-stage composite heating MEMS chip design, control heat diffusion during heating process, greatly inhibit heat drift during heating process, and ensure efficient observation of the experiment.
	·5. The heating wire is coated with silicon nitride, which does not react with the sample to ensure the accuracy of the experiment.
Efficient intelligent software	·1. Man-machine separation, software remote control of experimental conditions, program automatic control of tilt Angle.
	·2. Customize the program temperature curve. It can define more than 10 steps of heating procedures, constant temperature time, etc., and can manually control the target temperature and time. In the process of programmed heating, it is found that the temperature change and constant temperature are needed, and the experimental scheme can be adjusted immediately to improve the experimental efficiency.
	·3. Built-in absolute temperature scale calibration program, each temperature control of each chip can be based on the change of resistance value, re-curve fitting and correction, to ensure the accuracy of measurement temperature, ensure the reproducibility and reliability of high temperature experiment.
	·4. The whole process is equipped with precision automation equipment to assist manual operation and improve experiments Efficiency.

Category	Index	Numerical valu
Basic parameters	Shaft material	High strength titanium alloy
	Silicon Nitride Film thickness	No film or 20nm
	Applicable TEM brand	Thermo Fisher/FEI, JEOL, Hitachi
	Applicable pole piece types	ST, XT, T, BioT, HRP, HTP, CRP
	Tilt max	α ≥ ±75° (actual range depends on pole shoe model)
	(HR)TEM/STEM	Available
	(HR)EDS/EELS/SAED	Support heating process and high temperature detection

了解更多详情

The voltage-dependent behavior of Ag2Te-based thermoelectric materials

High-resolution 0.4V voltage Ag2Te-based thermoelectric materials

Ag2Te-based thermoelectric materials can convert electrical energy and thermal energy through the movement of internal carriers. Therefore, during the voltage application experiment, the sample's own temperature increases as the voltage increases. Research shows that as the voltage continues to rise, the surface structure of the sample changes significantly, with the texture evolving from irregular blocks to stripes or disappearing. Moreover, by reducing the voltage, we found that the process of surface structure change when the voltage is increased or decreased in this material is reversible, indicating that it has excellent thermoelectric performance and reusability.