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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">OK good to know.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">I figured someone on the labnetwork would have the answer.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Thanks Subhadra.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Rob<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"> Subhadra Gupta <sgupta@retiree.ua.edu>
<br>
<b>Sent:</b> April 18, 2024 4:11 PM<br>
<b>To:</b> Robert Vandusen <RobertVandusen@cunet.carleton.ca><br>
<b>Cc:</b> labnetwork@mtl.mit.edu<br>
<b>Subject:</b> Re: [EXTERNAL] [labnetwork] Question about Marz grade Aluminum from MRC<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:11.0pt"><span style="font-size:10.0pt;color:black">[External Email]<o:p></o:p></span></p>
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<p class="MsoNormal">Hi Rob, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I worked at MRC from 1985 to when it was sold in 1997. Marz grade is 5 9’s pure or 99.999%, just as you found out.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Best regards,<o:p></o:p></p>
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<p class="MsoNormal">Su<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Dr. Subhadra Gupta<o:p></o:p></p>
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<p class="MsoNormal">Fellow, American Vacuum Society <o:p></o:p></p>
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<p class="MsoNormal">Professor Emerita, Metallurgical and Materials Engineering,<o:p></o:p></p>
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<p class="MsoNormal">University of Alabama <o:p></o:p></p>
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<p class="MsoNormal">Tuscaloosa, AL 35487.<o:p></o:p></p>
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<p class="MsoNormal">(205) 329-4476<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal">Sent from my iPhone<o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">On Apr 18, 2024, at 12:48 PM, Robert Vandusen <<a href="mailto:RobertVandusen@cunet.carleton.ca">RobertVandusen@cunet.carleton.ca</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Hi everyone.<o:p></o:p></p>
<p class="MsoNormal">We have some MARZ grade Aluminum evaporation slugs from MRC which we are hoping to use.<o:p></o:p></p>
<p class="MsoNormal">There is nothing else on the container indicating purity. The PN is 20-101E-AL000-1000<o:p></o:p></p>
<p class="MsoNormal">I found one paper referring to MRC MZ Aluminum as 5-9s (99.999%), but I haven’t been able to find any other information online on the purity of this MZ grade AL.<o:p></o:p></p>
<p class="MsoNormal">We could have it tested but just wondering if anyone out there knows for sure?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal">Rob<o:p></o:p></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:black">Robert Vandusen<br>
Technical Officer, Microfabrication Lab<br>
Electronics Department<br>
Carleton University<br>
room: 4184 Mackenzie Building<br>
<a href="tel:613-520-2600">613-520-2600</a> ext 5761<br>
<a href="mailto:Robert_vandusen@cunet.carleton.ca" target="_blank">Robert_vandusen@cunet.carleton.ca</a></span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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