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I am interested in sealing some air-sensitive samples inside of xrd-amorphous material to allow for XRD and hopefully XRD-texturing analysis. Of course, Kapton is the common material used for this purpose, but I am unaware of a good way to seal two pieces of kapton together. Impulse sealers (ie here) are commonly used for creating plastic seals in food processing. However, they don't reach a high enough temperature to melt Kapton. I also tried to just heat the kapton with a soddering iron, to no avail. Are there other materials that maybe suitable for sample storage during xrd ?

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    $\begingroup$ More classically, glass was the choice. $\endgroup$ – Jon Custer Dec 11 '18 at 0:00
  • $\begingroup$ Really, what type of glass? $\endgroup$ – User2341 Dec 11 '18 at 0:05
  • $\begingroup$ See this link for an example. $\endgroup$ – Todd Minehardt Dec 11 '18 at 1:44
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    $\begingroup$ Not really sure since I never did that kind of a thing, and glass departments associated with chemistry departments aren’t a thing either. But in literature of the 50s and 60s there are lots of papers with distilling or otherwise getting samples into small tubes and crimping the glass shut. Great way to seal it. Best guess would be a standard boro-silicate glass with a reasonably low softening point. $\endgroup$ – Jon Custer Dec 11 '18 at 1:44
  • $\begingroup$ In our department, we have glass capillaries for this. There are actually some suggestions for this from the Argonne beam-line here: wiki-ext.aps.anl.gov/ug11bm/index.php/Air_Sensitive_Samples $\endgroup$ – Geoff Hutchison Dec 11 '18 at 14:09

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