Main Discussion Area > Flintknapping

heat treating

(1/3) > >>

iowabow:
Those of us that heat treat please watch this. I think there may be a connection for us. At about 21 mins in he talks about a glass factory accident. Toward the end of this experiment he talks about crystal formation and cooling. I have cooled fast and slow my slow seems better could this be why. https://youtu.be/FYfuI2uZLmg
I knew this from teaching ceramic but did not make this connection untill I watched this. I am going to do a little more research on quartz and silica to see what happens at different temps.
 

iowabow:
Be careful to watch the whole conversation because he contradicts his statement. I think the second part is correct

iowabow:
Start at 20 min 51 second

iowabow:
Some times in ceramics we slow the ramp down during cooling to prevent clouding in the glaze.

iowabow:
So the question I want answered is are we working with temp that matter or will this matter in some cases but not others. We know novaculite sees high temps and needs very slow ramps ....is this why?
I have questions but no answers

Navigation

[0] Message Index

[#] Next page