http://sop.mse.mtu.edu/index.php?action=history&feed=atom&title=Wood_Magnesium_Sample_Polishing 2026-06-07T09:21:40Z Revision history for this page on the wiki MediaWiki 1.37.2 http://sop.mse.mtu.edu/index.php?title=Wood_Magnesium_Sample_Polishing&diff=251&oldid=prev 2022-05-24T19:19:46Z

<p>Copied from old</p> <p><b>New page</b></p><div>[[Category: SOP]]<br /> <br /> ==Safety==<br /> •Must wear appropriate PPE (safety glasses and gloves when needed)<br /> <br /> ==Procedure==<br /> # Start grinding with 240 grit silicon carbide sandpaper and a force around 20 N. To change the force to 20 N, turn the screw until the dot is aligned with the second line from the bottom. <br /> # Let the grinder run for 1 minute and check to see if the sample is planar. If the sample is not planar, then run the grinder for an additional 30 seconds to 1 minute. <br /> # Take the samples out and run them under water. Spray the samples with the air hose until they are dry.<br /> # Spray the samples with ethanol and dry them with the air hose. <br /> # Replace the 240 grit sandpaper with 320 grit sandpaper. <br /> # Run the samples for 1 minute on the grinder.<br /> # Take the samples out, rinse with water, and dry with the air hose. Then rinse the samples with ethanol and dry with the air hose. <br /> # Repeat this process with 400, 600, and 800 grit sandpaper. Grind for 1 minute, rinse with water and dry, rinse with ethanol and dry, and replace with next grit.<br /> # After completing the 800 grit stage, place the sample in the sonicator on 30 for about 10 minutes. <br /> # Put a couple drops of the 3 µm diamond compound on an unwoven pad and spread it around with a gloved finger. <br /> # Put Red Lube Polishing Lubricant on the pad to lubricate it. Do not put water on the pad.<br /> # Grind for 5 minutes.<br /> # Put the sample in the sonicator for another few minutes. <br /> # Put a couple drops of the 1 µm diamond suspension on an unwoven pad.<br /> # Put Red Lube Polishing Lubricant on the pad to lubricate it. Do not put water on the pad.<br /> # Grind for 5 minutes.<br /> # Run water on the grinder to make sure it is clean.<br /> # Replace the pad with the diamond compound with a blue cloth pad and get the pad wet with water and a few sprays of Al3O2 with DI water. <br /> # Run the grinder for about 90 seconds keep spraying the pad occasionally with the Al3O2 with DI water mixture to ensure that it stays wet. <br /> # Run the samples for another 30 seconds with just water. <br /> # Remove the samples and spray with ethanol. Make sure not to scratch the polished face when taking it out of the grinder. <br /> # Dry with hair dryer. Make sure not to touch the polished face.</div>

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