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Hi Rob,
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<div>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.</div>
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<div>Best regards,</div>
<div>Su</div>
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<div>Dr. Subhadra Gupta</div>
<div>Fellow, American Vacuum Society </div>
<div>Professor Emerita, Metallurgical and Materials Engineering,</div>
<div>University of Alabama </div>
<div>Tuscaloosa, AL 35487.</div>
<div>(205) 329-4476</div>
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<div dir="ltr">Sent from my iPhone</div>
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<blockquote type="cite">On Apr 18, 2024, at 12:48 PM, Robert Vandusen <RobertVandusen@cunet.carleton.ca> wrote:<br>
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<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;mso-fareast-language:EN-CA">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"><span style="color:blue">613-520-2600</span></a> ext 5761<br>
<a href="mailto:Robert_vandusen@cunet.carleton.ca" target="_blank"><span style="color:blue">Robert_vandusen@cunet.carleton.ca</span></a></span><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif;mso-fareast-language:EN-CA"><o:p></o:p></span></p>
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