Dear Bill, I have a huge amount of respect for your chemical engineering and product development. I was trained in material preparation by the so called old school at the University of Washington and have had zero problems. The only issue with old school techniques is that they are very time consuming as I was told there are no shortcuts to good material preparation. I am all ears to anything your laboratory offers that will guarantee a simpler way to material preparation.
All the best, Adam ----- Original Message ----- From: "Bill Mason III" <[EMAIL PROTECTED]> To: "'Adam Hupe'" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Saturday, March 20, 2004 5:05 PM Subject: RE: [meteorite-list] Why not oil /diamond blades for cutting meteorites? Dear Adam, Seems that new technology for grinding and cutting fluids is being ignored. I have a water based additive for fluids that permit cooling, lubrication and prevents corrosion of ferrous metals. VpCI-435. Have been working on H-5 slices in our laboratory. Results soon to be published. There are opportunities to save our collections through new technology if we open our minds to 2000 state of the art chemistry. Bill Mason "Rusty" -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adam Hupe Sent: Saturday, March 20, 2004 1:22 PM To: [EMAIL PROTECTED] Subject: Re: [meteorite-list] Why not oil /diamond blades for cutting meteorites? Hi Dean and List, It is crazy using alcohol in a saw that was not designed for it. You need a very low speed saw (1-300RPM) with the motor isolated from the cutting reservoir and fumes or else you are asking for a trip to the emergency room. Alcohol also destroys the rubber seals that protect your bearings and dissolves the grease in them causing premature saw failure. Oil does no permanent damage to meteorites so long as it is filtered on a regular basis. Literally every polishing operation I have seen uses distilled water. Using tap water is being cheap as it introduces chlorine into the meteorite creating long term reactions that break down the metal component and a few other minerals. Oil acts as a temporary sealant during the polishing operation preventing water from being absorbed into the specimen. The polishing operation removes most of the oil. A pure ethyl alcohol bath can be used to extract the rest of the oil trapped in the specimen. A final treatment should be to slow dry the specimen in a humidity free environment. We use a halogen lamp for this purpose. All specimens should be polished immediately after cutting because it reduces the surface area in which moisture can be trapped. I hope this helps, Adam Hupe The Hupe Collection, IMCA 2185 ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
