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Perlite/silicate composites - No good info?
Thank you so much, this is useful.

And vacuum worked like a charm, I'm up to 98.3% perfect now ...
31-10-2022 at 03:25
by: Fulmen
Perlite/silicate composites - No good info?
Pewter is a great place to start for a number of reasons. It has wonderful casting properties and th ...
30-10-2022 at 01:52
by: Fulmen
Don't ballmill magnesium.
The general consensus is to open the jar frequently to reform the oxide layer (see macckones answer ...
30-10-2022 at 01:31
by: Fulmen
Perlite/silicate composites - No good info?
Nice work. I have to admit that making a brass knuckle is part of the motivation for doing this :-) ...
29-10-2022 at 12:59
by: Fulmen
Perlite/silicate composites - No good info?
That's not a bad idea, but I don't think it will be enough. Just look at the defect in the sprue. I ...
29-10-2022 at 09:42
by: Fulmen
Perlite/silicate composites - No good info?
You're right, there's no venting. But then again the pro's don't seem to use it either. I have playe ...
29-10-2022 at 02:10
by: Fulmen
3 350/420 volt phase generator for 230 Volts single phase
[rquote=677969&tid=159026&author=yobbo II]
I see at the bottom of the plate is says: WDG ...
29-10-2022 at 01:55
by: Fulmen
Perlite/silicate composites - No good info?
Another failure. The hole is most likely trapped air, guess there is a reason why sentrifugal castin ...
28-10-2022 at 23:00
by: Fulmen
Perlite/silicate composites - No good info?
I doubt it's dissolved gas, not with pewter at less than 400°C. Besides, the location is wrong. The ...
27-10-2022 at 13:26
by: Fulmen
Perlite/silicate composites - No good info?
Forgot to mention that they are cast in pewter.
Here's the latest resuly. Pretty good except for ...
27-10-2022 at 12:33
by: Fulmen
3 350/420 volt phase generator for 230 Volts single phase
The 350/420V marking is weird, Google gives me no relevant hits. But yeah, it's 400-ish volts in sta ...
27-10-2022 at 11:44
by: Fulmen
Perlite/silicate composites - No good info?
It's not so bad after all, I most likely pushed the leads in when I wrapped the kiln in fiberglass. ...
26-10-2022 at 23:04
by: Fulmen
Perlite/silicate composites - No good info?
Damn, the coil blew on the second run. Apparently it crept out of the groove and shorted against the ...
26-10-2022 at 10:48
by: Fulmen
Don't ballmill magnesium.
Reactive metals like magnesium and aluminum has a protective oxide layer that prevents further react ...
26-10-2022 at 03:34
by: Fulmen
Perlite/silicate composites - No good info?
We have some results.
The ethyl acetate worked OK, I simply mixed up the perlite/sodium silicate t ...
26-10-2022 at 02:29
by: Fulmen
Using a(n Ag) mirror RBF to carry out reaction with fused alcali
Only one way to find out I guess.
25-10-2022 at 03:10
by: Fulmen
Using a(n Ag) mirror RBF to carry out reaction with fused alcali
I wouldn't put much faith in the mechanical strength of the silver coating. It is extremely thin, an ...
25-10-2022 at 00:58
by: Fulmen
Perlite/silicate composites - No good info?
@Rainwater: The disk was made with straight sodium silicate (3:1).
I'm aiming for 400-450°C, whil ...
24-10-2022 at 23:21
by: Fulmen
Perlite/silicate composites - No good info?
Progress so far: First a test piece dried @275°C for a couple of hours. The density is appr 0.45 an ...
24-10-2022 at 12:23
by: Fulmen
Using a(n Ag) mirror RBF to carry out reaction with fused alcali
That's a very good idea. I think nickel is the best choice, at least among the non-noble metals.
24-10-2022 at 11:58
by: Fulmen
Perlite/silicate composites - No good info?
Is my Google-Fu really that weak? I can't seem to find any good engineering data on this topic. Ever ...
24-10-2022 at 09:49
by: Fulmen
Don't ballmill magnesium.
How do you plan on emptying the mill?
16-10-2022 at 10:45
by: Fulmen
Chemicals used to corrode locks & gain entry ?
In the third picture it has eaten right through the the protective cover, even if it's plated pot me ...
6-10-2022 at 10:07
by: Fulmen
Chemicals used to corrode locks & gain entry ?
I used to pick locks for fun, so I can kinda get it in theory. A worn or sloppy lock would be easier ...
5-10-2022 at 10:38
by: Fulmen
Best way to measure a milliliter?
That's true, unless you can add it directly to another liquid (or absorbent) that will reduce evapor ...
1-10-2022 at 09:12
by: Fulmen
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