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May 27, 2021 at 14:50 comment added Paul TIKI @RBarryYoung I know this from personal, bitter experience with my own charcoal forge. Still a novice, but I'm learning.
May 26, 2021 at 21:35 comment added John @RBarryYoung yes, I have melted steel by not paying attention in a charcoal forge.
May 26, 2021 at 19:09 comment added RBarryYoung @PaulTIKI Charcoal forges can actually get very hot. Overheating the steel is a common problem with them.
May 26, 2021 at 16:50 history edited John CC BY-SA 4.0
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May 26, 2021 at 16:43 comment added John @PaulTIKI good catch that was supposed ot say "close to" blast furnaces typically heat to around 14-1700 degrees C you need ~1100 to melt gold. Its actually fairly close the the melting point of cast iron. but yes building firs can rarely get that hot so I will mention that.
May 26, 2021 at 16:37 history edited John CC BY-SA 4.0
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May 26, 2021 at 15:25 comment added Paul TIKI quibble about gold. It does not require blast furnace heat to melt. The melting point of gold is around the same temp as is required for forge welding some steels, and I know for a fact that you can forge weld in a simple charcoal fire with a moderate addition of air. Building fires can get hotter than that.
May 26, 2021 at 9:45 comment added A. B. For another example of a real-life metal book, there's the Copper Scroll, one of the Dead Sea Scrolls. en.wikipedia.org/wiki/Copper_Scroll That had corroded pretty badly by the time it was found (they had to slice it up to unroll it without it breaking apart - of course, that wouldn't be an issue for a flat book), but, then, it was almost 2,000 years old. The pieces were still legible once they got it open.
May 26, 2021 at 4:49 comment added John @nick012000 those are tablets not intended for long term storage, tablets intended as long term records were fired. the Minoans never intentionally fired tablets, for weird reasons, but most cultures did. the Tărtăria tablets for instance were all fired and likely predate cuneiform.
May 26, 2021 at 4:40 comment added nick012000 @John Actually, IIRC, most of the clay tablets that were used for cuneiform writings weren't fired, just dried. This allowed them to be re-wetted, and then erased and reused for other writings. The ones that survived to today generally were fired, but often unintentionally because the building they were stored in caught fire.
May 26, 2021 at 4:20 history edited John CC BY-SA 4.0
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May 26, 2021 at 3:45 history edited John CC BY-SA 4.0
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May 26, 2021 at 3:42 comment added John @DWKraus its actually used for lining furnaces, It will handle normal fire just fine. . Not quite as good as asbestos but a whole hell of a lot less toxic. ceramicfiber.net/ceramicfiberpaper.htm
May 26, 2021 at 3:35 comment added DWKraus I did find this reference to ceramic paper. Don't know if it's better than asbestos, but it is ceramic. I'm not sure if it degrades in kilns and simply survives these temps or not. amazon.com/Ceramic-Fiber-7620x610x3mm-Asbestos-Fireproof/dp/…
May 26, 2021 at 2:29 history edited John CC BY-SA 4.0
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May 26, 2021 at 1:46 comment added John @PcMan that is true for wet clay, finished tablets generally were not made of wet clay, tablets were fired once they were completed, after which they are very fireproof. A fired clay tablet can survive very hot fires without harm. Nineveh tablets actually became better preserved after the library they were in burned down.
May 26, 2021 at 1:39 history edited John CC BY-SA 4.0
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May 25, 2021 at 16:15 comment added Christopher King You'd probably want gold alloy so it doesn't get crushed under it's weight.
May 25, 2021 at 8:23 comment added PcMan Clay, exposed to even a moderate fire, crumbles into small shards. It will only strengthen if you apply the heat slowly, evenly, to the correct temperature, and then cool them down even more slowly.
May 25, 2021 at 4:51 history edited John CC BY-SA 4.0
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May 25, 2021 at 2:34 history answered John CC BY-SA 4.0