Tantalum (intan: the name of the king of wealth, derived from Greek mythology, discovered in 1900.) Tantalum is virtually impervious to erosion.In surgery, there is a great contribution to the repair of the human body: it can replace bones (such as the head).
Made into foil or silk thread can be connected to the broken nerve; Netting is used to bind the muscles of the abdomen meat. Purpose: tantalum is a light gray metal slightly bluish in color due to its many oddities. The characteristics of a wide range of applications, therefore, known as the "metal kingdom" of the generalist.
Tantalum is very hard. Its hardness can reach 6-6. 5. Its melting point 2996 ℃, It ranks third behind tungsten and rhenium. Tantalum is malleable and can be drawn into fine wires or thin foil. The thermal expansion. The coefficient of expansion is small, expanding by only 6.6 parts per million for each degree Celsius rise. On top of that, it's very resilient Strong, even better than copper.
Tantalum also has excellent chemical properties and high corrosion resistance. Both in cold and hot strips. Below, to hydrochloric acid, concentrated nitric acid and "wang shui" have no reaction. The tantalum in 200 ℃ of sulfuric acid soaking.
One year, only O. 006 mm. It is proved that tantalum is suitable for alkali solution, chlorine gas and bromine at room temperature. Water, dilute sulfuric acid and many other agents did not work, only under the action of hydrofluoric acid and hot concentrated sulfuric acid.
Reaction. Such cases are relatively rare in metals. Tantalum has a wide range of applications due to its unique characteristics. In the equipment for making various inorganic acids, Tantalum can be used as a substitute for stainless steel. In addition, in the chemical industry, electronics, electricity.
In addition, tantalum is also an important element in the refining of superalloy steels, corrosion resistant steels and heat resistant steels. For the development of rockets, spacecraft, jet aircraft and other space technology necessary special materials. It's made of tantalum and tungsten. The non-magnetic alloys are widely used in the electrical industry, especially tantalum carbide, which is composed of tantalum and carbon.
Hardness, even at high temperatures and diamond is also the same. The turning tool made of it can be used for high speed cutting.
Many hard alloys; Drills made with it can replace the hardest alloy or diamond. Due to the Tantalum is also considered to be a "vitamin" in smelting.
Tantalum can also play an important role in modern medicine. It turns out that tantalum isn't just bad for you. There is no damage, and the body's muscles can also grow on it, the medical term for the biological solubility. Doctors use it to repair and seal broken skulls and broken limbs. Seam and defect. At the same time, tantalum can be made into filaments one-tenth thinner than a human hair and used for internal organs. Sutures used in surgery, or embedded in an artificial eye. It can even replace tendons and nerve fibers.
