Understanding the properties and functions of metals and other materials in real-world conditions requires high resolution, high contrast microscopy of samples at high temperature and in a controlled environment. The High Vacuum Heating Stage meets these requirements with a unique design and an accessible workflow – it enables clean heating experiments that are controlled through the user interface of the SEM or DualBeam instrument. With temperature logging integrated in the image data, the High Vacuum Heating Stage allows for recording all experiment data including images and videos in one go.
The High Vacuum Heating Stage is capable of working in high vacuum conditions without significant outgassing. This provides several advantages over working in low vacuum conditions: the SEM can work over a large parameter space that includes high beam energy, low beam energy, immersion, and in-column secondary / backscatter electron detection, greatly improving the achievable resolution and contrast. Operating at high speed, the high-vacuum detectors make it easier to track transient processes with fast image acquisition.
Moreover, high vacuum provides a cleaner environment – heated surfaces will run a much reduced risk of reaction with oxygen or water when there is no imaging gas to react with. This provides more room for observing heated surfaces that would otherwise be covered in oxide.
Finally, high vacuum operation improves the backscatter signal that is detected in electron backscatter diffraction (EBSD) analysis – with this stage, high quality EBSD maps can be acquired at temperatures up to 900° C.
Covering a wide range of heating experiments while allowing excellent image quality and easy operation, the High Vacuum Heating Stage is an essential tool for materials scientists studying high-temperature phenomena at the nanoscale.
Software and control
- Heating stage control is fully integrated into the SEM User Interface
- Multiple set-points, ramp and soak times can be programmed
- Capability to hold and restart a sequence or to proceed to the next step
- Manual control of heater power is available
- Movie acquisition is built in for both direct AVI or sequential TIFF acquisition
- Software for combining individual TIFF files into a movie is provided with user defined timing and databar composition
- Live measured temperature and power display
All samples should be placed on a silicon heating substrate. Samples are mounted using:
- Press clamp with round central hole of diameter: 2mm, 3mm, 5mm, without screws (consumable)
- Two (up to four) clamps with screws
Installation requirements and compatibility
The high vacuum heating stage is compatible with Quattro, Apreo and Scios and occupies one port for hot/cold feedthrough