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Old 06-08-2019, 06:15 PM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 21,335
Pete VanderLaan is on a distinguished road
So, this thing has evolved from the 2013 class

When Mark came and did the team teaching back six years, I was brought this curious little crucible by Joe Pfeiffer which did odd stuff. If one melted in it and cooled it, glass did not stick, or so claimed the purveyor. Further, if you threw the mess in ice water, it did not crack, nothing-.

The person with the stuff was not finding market anywhere and it was brought to me. I really had a lot to do and so it went on the shelf forever but remained there. Years passed and I lost the paper work for it until a few weeks ago when MB surfaced with it and dropped it on my laptop and I was stunned. I assumed it was gone forever but it was not.

So, armed with the document, and I still had the little crucible with the glass tha falls out of it on demand, I started looking hard for source. The domain name was gone, expired , not reregistered. The product is a combo of crazy claims and some science yet I had the pot and the sample.

So, I called Mark and he asked me to take the crucible and put cullet in it and run it up to 2000F which I did. Then we shut down and about seven hours later, I took the pot out of the gloryhole at around 500F and checked it out. The stuff was cracked in half in the pot which I attributed to poor annealing yet when I tapped it upside down. the glass indeed fell out in two pieces. It wasn't completely clean but it was really hot and I attribute that to expansion.

So Monday, the pot goes off to Corning for analysis. It's not a crucible formulation based on the Na/Zr/po but it sure could be a mold release. It has occurred to me that the chemical formulation I have , ( a NA/zir/ po/ might be a wash as to a release but at this point, who knows. Mark has the contact to get an analysis through his grant.

I love this crap.

Is that not totally cool? For me, it beats the snot out of pumpkins.
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