Powder Diffraction at High Temperature | |
For performing high temperature experiments, one can use the DHS 1100 heat cell (Anton Paar GmbH, Austria) mounted on the four-circle (first) goniometer. Thin film, powder and solid samples can be used for experiments over a temperature range of 25 �E1100 C in different environments. The special, dome-shaped graphite X-ray window of the DHS 1100 sample stage combines two important properties: gas-tight enclosure of the sample and X-ray transparency over the complete half space above the sample. Because of the gas tightness, samples can be investigated in air, vacuum or inert gas to avoid oxidation or other chemical reactions of the sample at high temperatures. One can use either point detectors (cyberstar) or 2D Pilatus detector for data collection and perform X-ray diffraction, X-ray reflectivity or X-ray scattering experiments at high temperatures. It is important that the samples are NOT heated to temperatures close to the melting point as otherwise the heat cell will be damaged. Sample diameters up to 25 mm and thickness up to 2 mm are suitable for experiments. Temperature range: |
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High temperature cell mounted on the 4 circle goniometer with the graphite dome |
High temperature cell without the graphite dome where the sample is mounted on the Aluminium Nitride (AlN) ceramic base plate |
Closer view of sample, mounted on the AlN ceramic base plate and held by the Inconel springs |
Anton Paar temperature controller
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