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Author: Subject: Mortar And Pestle Composition
bfesser
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[*] posted on 15-3-2008 at 19:05


Tungsten, anyone?
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12AX7
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[*] posted on 15-3-2008 at 19:07


OOH! Let's get together and carve one for Theodore Gray and/or Oliver Sachs!

Tim




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[*] posted on 26-3-2008 at 17:43


I have two M&P made from porcelain (one smaller and one larger). They have a rough interior. I also had one with a smooth interior but it fell:(



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TDCFMOG
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[*] posted on 5-4-2008 at 23:39


Quote:
Originally posted by FleakerAnyone ever got to use one of those tiny little alumina mortar and pestles? They're pinkish in colour and fairly expensive, but they grind very well!


I was looking at mortar and pestles online and the alumina ones I've found don't seem to be pinkish but are expensive.

However the Diamonite mortar and pestle listed on Fisher's website is pink and painfully expensive.

Edit: On Fisher's website they claim the Diamonite mortar and pestle is good for "grinding materials not easily reduced in porcelain or metal mortars".

https://www1.fishersci.com/wps/portal/PRODUCTDETAIL?productI...

[Edited on 6-4-2008 by TDCFMOG]




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[*] posted on 9-4-2008 at 17:23


Quote:
Originally posted by 12AX7
Eh, titanium's strong, but steel has the edge (-holding capability).

What you want is manganese steel (about 5-15% alloy, IIRC), for abrasion resistance. They use that shit for *backhoe* buckets and teeth. Actually I'm not sure what the teeth are, I imagine they are something directly from the gates of hell! That's what you really want. :D

A similar proposition (i.e., a case of favorite alcoholic beverage) might get a tool and die maker to carve you one from a block around the shop.

Tim



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I use a cast iron M&P great wear considering it's felt nothing but Mn/Ti, Al2O3 and raw Si...
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[*] posted on 16-6-2008 at 18:29


Hah! I was waiting for someone to mention the "Diamonite" or sintered sapphire mortar and pestle. I was lucky enough to find one of the BIG ones at work literally a couple months before they threw everything away! This fool who was working in our glassware washroom thought it would be a good idea to take all the boxes and shelves of old condensers and such (this M&P was with this stuff) and put it in the garbage crusher.

He didn't get fired but they did move him back to maintenance.

I imagine that diamonite thing would've destroyed the crusher anyway.
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