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To: mamelukesabre
*CAST* STAINLESS FOR ELASTIC LIMIT COMPARISSON? LOL, gimme a break! bogus chart there.

Nope, no bogus charts here. These charts give you the specs of specific alloys. They are checkable. Metals have different qualities and usages. Your high carbon steel is hard but brittle and corrodes easily. The liquid metal here is hard but NOT brittle. That's what the elasticity is showing. It's also corrosion resistant. It's also much lighter.

26 posted on 08/12/2010 9:04:36 PM PDT by Swordmaker (This tag line is a Microsoft product "insult" free zone!)
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To: Swordmaker

Quit playing dumb. Your charts are bogus. They are bogus because they compare tensile strength to a low strength steel, and they compare elasticity to a rather unelastic steel.

nice try.


49 posted on 08/13/2010 5:45:06 AM PDT by mamelukesabre (Si Vis Pacem Para Bellum (If you want peace prepare for war))
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To: Swordmaker; mamelukesabre
Nope, no bogus charts here

Actually, they are. They do not represent anything close to typical alloys, and they are highly selective in what they show.

LiquidMetal has been around for a long time, and the high elasticity is intriguing, but it's not really higher than much more common - and easier to work - copper beryllium alloys (which - in addition to having a very high Young's modulus - has extremely high conductivity making it ideal for test probe tips and flexible antennas/connectors). They've been pushing it for a decade, and still haven't gotten a high-profile win because it really doesn't bring much new to the table.

And if you want a REALLY high Young's modulus, look at tungsten - twice the yield strength of LiquidMetal, and three times the Ym.

Your high carbon steel is hard but brittle and corrodes easily.

High carbon steels typically do NOT corrode easily; ever heard of stainless steel, or spring steel? Both are considered high carbon (in that carbon content is typically between 1% and 2%), but are well-known for not corroding.

The liquid metal here is hard but NOT brittle.

That's called Young's modulus. LiquidMetal is around 95 GPa, which is rather pedestrian in terms of metals available, being somewhere between glass and brass.

It's also corrosion resistant.

No more so than stainless, surgical, or other high carbon steels. And considerably less than many tungsten, nickel, or beryllium alloys.

It's also much lighter.

Not even close. I've got some of their technical data here (was investigating it for industrial linear springs about 6 years ago), and the density of their alloys line right up with typical steels, being around 7.9 grams per cc. About 3 times of most Ti alloys, and slightly higher than NiChrome.

Oh, and the Vertu phone has been using LiquidMetal for its frame for quite a while. Simply because it's expensive and "cool". But I guess Apple has to follow the lead of Vertu...;)

This is a "cool sounding" thing, but in reality LiquidMetal is not really useful over other alloys, which explains why it simply is getting zero penetration in the metals market. But now that Apple claims it, it has become an uber-metal because, well, Apple says so!

76 posted on 08/18/2010 3:55:20 PM PDT by PugetSoundSoldier (Indignation over the Sting of Truth is the defense of the indefensible)
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