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<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Can be done and evaporates fairly reliably. It takes very little power to melt. For us it helped to keep the walls of the crucible cold to stop it creeping up the sides and out onto
the hearth. Can’t remember what crucible we used but a TiN coating is probably not a bad idea to try and stop Li interdiffusion. There is various literature which discusses it being an effective barrier to Li. Pyrolytic Boron Nitride is another good alternative.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">It also evaporates well from a k-cell at ~500C but eventually it will creep around the end of your crucible and attack heating filaments if you run it too long. PBN crucibles again.<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> labnetwork-bounces@mtl.mit.edu <labnetwork-bounces@mtl.mit.edu>
<b>On Behalf Of </b>Morrison, Richard H., Jr<br>
<b>Sent:</b> 13 September 2019 16:55<br>
<b>To:</b> labnetwork@mtl.mit.edu<br>
<b>Subject:</b> [labnetwork] Lithium evaporation<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">Hi Folks,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Has anybody allowed Lithium into an E-Beam evaporator, if so any tips?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Rick<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Richard H. Morrison<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Principal Member of the Technical Staff<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Draper<o:p></o:p></span></p>
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