How To Melt THE MOST REFRACTORY METAL on Earth?

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Best Patrons: Stan Presolski, reinforcedconcrete, Dean Bailey, Bob Drucker, Pradeep Sekar, Applied Science, Purple Pill, afreeflyingsoul. Thank you guys!

Today we will try to melt each of such metals and we will even attempt melting tungsten. Will we succeed at melting the most heat resistant metal on earth?
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I feel like I’m getting a science lesson from the borats son and it’s honestly amazing.

Racingboom
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Fun fact, I'm a journeyman Welder 14 years. We use tungsten electrodes for T.I.G (Tungsten Inert Gas) welding. The tungsten electrode makes short contact with the metal to be welded, current then flows from the tungsten electrode to the metal to be welded, and filler material is hand dipped into the molten puddle, created by the electrical current. The Tungsten electrode is held by a special hand torch which also supplies an inert gas (argon) to protect the weld from our atmosphere. The tungsten electrode does not melt from the current, unlike stick (SMAW) welding. The polarity (way which the current flows) is opposite to other welding processes to prevent heat from melting the tungsten. If you have the polarity wrong, the tungsten electrode basically vaporizes 🤣

aztharz
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The land where is easier to obtain rare metal samples and high temperature torch, but finding safety equipment is extremely difficult. Take care of your self, we need this channel.

BorisGadjowsky
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In tig welding of aluminum, we used reverse polarity with the electrons going from the work to the tungsten electrode melting it into a shiny ball. The positive argon ions moving from the electrode to the aluminum blasted away the aluminum oxide film on the aluminum work piece and allowed it to flow together with the welding rod. High current was required to melt the aluminum quickly at the weld before the heat spread to the rest oh the workpiece causing the whole thing to melt due to its high conductivity and low melting point. The tig unit had a timer that kept the argon flowing after the arc was turned off until the tungsten cooled below its oxidization point.

danajohnson
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The reason why Molybdenum melted slower than Tantalum is probably because the Molybdenum-Oxide acted as an Oblative heat shield and carried the heat away from the Metal

Peter_Schluss-Mit-Lustig
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Niobium is often used for making the nozzles of rockets. The Nozzles of the Merlin and Raptor engines from SpaceX are made out of an Niobium alloy.

Toxicity
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This guy legit has answers to the questions I didn't even know I had. Really enjoy your content man.

jonnycash
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Santa Claus can put those cube samples in my stocking this year!

terryboyer
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All the high temp melting metal: 🔥🥵
The brick: 👁️👄👁️👌

Aulcis
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This kind of videos is the reason I pay for internet

juap
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This is so educational. You should put together a lesson plan, and distribute this to chemistry classes. It’s really good.

elephantwalkersmith
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When doing some semi-related research on ceramics for extreme heat resistant applications last year, I came across an article detailing the manufacture of Hafnium Carbide. The lab doing their due diligence didn't have a torch hot enough to actually melt their sample and resorted to lasers (!!) to get the job done. If memory serves, the melting point was eventually found to be at or slightly above 4K Celsius. Not sure it'd be too easy to obtain a sample, but I suspect it's out there somewhere. The proposed use of this metal was being tested for heat shields on spacecraft and in-atmosphere hypersonic aircraft panels.

C-M-E
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10:17 Compared to breathing in those wicked crystals, asbestos might look like Rocky Mountain air.

RobertWilliams-mkpl
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Listening to you for 5 years and your accent doesn't change. That's one amazing consistency.

Enceos
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God I hope you aren't breathing any of that toxic heavy metal smoke! Lol

JosephdiCaro
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Hafnium is actually very useful in nuclear power. The combination of it's absorption cross section, chemical/mechanical properties and 6 stable isotopes make it an excellent material to make control rods out of. You can actually use them in a couple cores, as they remain "neutron black" over extended exposure to operating conditions.

Jtretta
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All you needed to do with the TIG welder was to run it DC electrode positive. 50 amps through a 1.6 mm electrode and bingo! molten tungsten!

yevrahhipstar
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I love this! It's difficult to find such science experiments and explanations in such a visual and fun platform.

davidmckay
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5:34 man in the background gets scared.

venixpll
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This channel satisfies so many curiosities I have had for a long long time

shahrukhs