Climate chambers facilitate XRD analysis under non-ambient conditions. The climate chamber can be applied onto the XRD diffractometer, substituting the conventional sample holder. Samples are inserted into the climate chamber, where controlled modifications of temperature and humidity can be applied along with simultaneous XRD analysis.
As described here, crystal structures can change configuration if the environment exerts stresses on the structure. This can occur e.g. via changes in temperature and/or humidity. Non-ambient XRD is a powerful tool to study the stability of crystalline structures under modified temperature- and humidity conditions. It can provide detailed information on the structural rearrangements occurring during phase transformations and the conditions promoting them.
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For our Malvern Empyrean multipurpose diffractometer, we have a CHC plus+ cryo- and humidity chamber. This enables XRD analysis at relative humidity between 5% and 95% rH, at temperatures between RT and 80 °C.
If modification of humidity is not required, the accessible temperature range is RT to 400 °C
Climate chamber module attached onto the XRD diffractometer