tantalum (Ta), chemical element, bright, very hard, silver-gray metal of Group 5 (Vb) of the periodic table, characterized by its high density, extremely high melting point, and excellent resistance to all acids except hydrofluoric at ordinary temperatures.
What are 5 uses of tantalum?
More than half of tantalum’s use is for electrolytic capacitors and vacuum furnace parts. The element is also used to make chemical process equipment, nuclear reactors, aircraft and missile parts. Tantalum has found use in making surgical appliances because it’s completely immune to body liquids.
What is the texture of tantalum?
The texture of the tantalum is very hard and the hardness can reach 6-6.5. Its melting point is as high as 2996 ° C, only after carbon, tungsten, rhenium and osmium. Tantalum is malleable and can be drawn into a thin foil.
What makes tantalum unique?
Tantalum has several unique characteristics that have led to its increased use in the 21st century. It is a highly stable metal that is almost immune to chemical degradation at temperatures lower than 302 °F (159 °C).
Is tantalum a strong metal?
Tantalum is a very hard and durable metal. With a mohs hardness of 6.5 it is harder than silver (2.8) Gold (2.8 to 4.0) platinum (4.5) and will resist scratching more than any precious metal. Tantalum like most metals will still scratch in wear, but can still be repolished when required.
Is tantalum bulletproof?
Tantalum jewelry is bulletproof. You can wear it in any kind of environment and all conditions. The metal will show scruffs and develop a patina but hold up forever. No cracking, no bending, no breaking, ever.
Is tantalum flammable?
TANTALUM dust reacts rapidly with oxidizing agents (oxygen, fluorine, chlorine). Highly flammable in air, igniting spontaneously when dry.
Is tantalum poisonous?
TANTALUM Inhalation May be moderately toxic by inhalation Skin Some industrial skin irritation from tantalum has been reported. FIRST AID FOR EYES: Dust or powder should be flushed from the eyes with running water for 15 minutes. If irritation persists obtain medical assistance.
Is tantalum a soft metal?
Tantalum is a shiny, silvery metal which is soft when is pure. It is almost immune to chemical attack at temperatures below 150 C.
What does tantalum smell like?
Tantalum dust is a black odorless powder.
Is tantalum harder than titanium?
The primary difference between titanium and tantalum comes down to weight and scratch-resistance. Titanium is much lighter than tantalum, and some men might prefer having a heavy ring they can feel on their fingers. On the other hand—well, not really—tantalum is not as scratch-resistant as titanium.
Is tantalum a solid liquid or gas?
Tantalum is a chemical element with symbol Ta and atomic number 73. Classified as a transition metal, Tantalum is a solid at room temperature.
Is tantalum bendable?
Thanks to its high level of ductility, tantalum is especially suitable for forming processes such as bending, stamping, or pressing.
Is tantalum a conductor of heat or electricity?
Tantalum (Ta) is a refractory, acid resistant, ductile and easily fabricated metal with a high melting temperature (2,996° Celsius). It is a good conductor of heat and electricity. Tantalum combines readily with other refractory metals, such as tungsten, to form alloys with high-temperature strength and stability.
Can tantalum break?
Tantalum Durability Tantalum is extremely durable and highly resistant to scratches and breakage. Tantalum is also resistant to corrosion, and will only corrode if exposed to hydrofluoric acid. It is also shatterproof, unlike metals such as tungsten.
Is tantalum rarer than gold?
Tantalum is the rarest stable element in our entire solar system, with just one atom of tantalum for every 181 billion atoms of other elements. That makes tantalum far less abundant than gold, or any of the traditional precious metals.
What metal can stop a bullet?
Kevlar. Perhaps one of the better-known bulletproof materials, Kevlar is a synthetic fiber that’s heat resistant and incredibly strong. It’s also lightweight, making it a popular choice for wearable bulletproof items.
Is a Diamond bulletproof?
Diamond Armor is certified bulletproof by NATO standards, waterproof thanks to nano-technology sealing and has an EMPA air conditioning system in-built to keep the wearer cool.
Can bullets pierce titanium?
Titanium can take single hits from high-caliber bullets, but it shatters and becomes penetrable with multiple hits from military-grade, armor piercing bullets.
Why is tantalum so expensive?
The reason for the high price is trivial: insufficient competition. Just a few companies keep tantalum refinery processes. You will never find the names of the companies at the top of the list of innovative companies.
How much is tantalum worth?
In 2021, the price of tantalum was approximately 158 U.S. dollars per kilogram of Ta2O5 content.
Does tantalum oxidize in air?
The kinetics, structural aspects, and phase morphologies were studied for tantalum oxidation in air from 600 to 1000°C for samples of different purity (99.15%, 99.76%, and 99.95% Ta). Regardless of purity, tantalum oxidation in the temperature range of 600–800°C as a rule is governed by a linear rate law.
Is tantalum a rare earth metal?
Here we’ll discuss a few actual rare metals, present in the earth in miniscule amounts but which have important applications nonetheless. The rarest stable metal is tantalum. The rarest metal on earth is actually francium, but because this unstable element has a half life of a mere 22 minutes, it has no practical use.
Is tantalum rare or common?
Tantalum is a grey, heavy and hard metal with high corrosion resistance and the highest known ability of all metals to store electricity. It is very rare, averaging 2 ppm in the earth’s crust, and is remarkable for its unsurpassed performance in the diverse end uses that it serves.
What is tantalum used for in cell phones?
Tantalum, from the source mineral tan- talite, is added to capacitors to regulate voltage and improve the audio quality of a device. Wolframite is a source of tungsten, which acts as a heat sink and provides the mass for mobile phone vibration.