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> Ive explains how the molecules in Apple gold are closer together, making it twice as hard as standard gold. Wait, what?
by chiph 12y ago
> Ive explains how the molecules in Apple gold are closer together, making it twice as hard as standard gold.
Wait, what?
- robin_reala 12y agoTheir metallurgists have come up with a novel process: http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=/netahtml/PTO/srchnum.html&r=1&f=G&l=50&s1=20140361670.PGNR http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=.... (the last full stop is significant but HN strips it and I can’t work out how to reference the patent directly)
- chiph 12y agoThe ceramic particles increase a hardness of the precious metal matrix composite compared to the continuous metal material without the ceramic materials. The precious metal matrix composite includes about 75% precious metal by mass. Ok, that makes more sense. The ceramic would indeed make the resulting composite harder. And has a side benefit of reducing the amount of gold used. Starting from 24k (pure) gold, the 75% ratio gets them to 18k, commonly used in jewelry in the US.