A Brief History of titanium

Titanium was first discovered in 1791 by British chemist Reverend William Gregor, and was originally named Gregorite after its founder. In 1793 it was once again discovered -independently-by German chemist M.H. Klaproth.

He named it Titanium after the Titans of Greek Mythology:"the incarnation of natural strength." The element was successfully isolated in 1910. Titanium is the 22nd element on the periodic table. It is primarily found in the minerals Rutile and Llmenite, which make up to 24% of the earth's crust- making Titanium the 9th most abundant element on Earth. It only occurs in nature in chemical combinations; the most common of which are oxygen and iron.

The atomic of Titanium is 47.867amu. It is a low-density element (4510 kg/m3); approximately 60% less dense than steel (7850 kg/m3). Titanium contains no iron, making it a non-ferrous, non-magnetic substance. Titanium transfers heat well, with a higher melting point than steel. (Titanium melting point: 1993 K (3020 degrees F and 1660 degree C). Steel melting point: 1923 K (3000 degrees F and 1650 degree C).

Titanium has the ability to passivate; therefore, it exhibits high levels of corrosion resistance to most mineral acids and chlorides.

Once primarily used by the aerospace industry, Titanium and Titanium alloys are being used increasingly in medical and other industries due to their coveted properties: non-magnetic, low-density, non-corrosive and very attractive strength to weight ratios. Titanium is also nontoxic and biologically compatible with human tissue and bone, making it useful for artificial hip and knee replacement, heart valves, spinal and Maxillofacial and other implants.


Application of Titanium - A Kind of Metal Full of Wisdom - 1
Titanium and titanium alloy is named as "future metal" for its excellent properties. It's lightweight, strong and high corrosion resistant, and become a great promising material. Titanium and titanium alloy is not just widely used in plane and aerospace industry. Now it's also widely used in chemical processing, petroleum, light industry, metallurgy, power generation and other industries.

One of titanium's excellent properties is high corrosion resistance. Because of its special ability to oxygen, it can generate a tight dioxide film on the surface. And this will protect titanium from corrosion. This also works as it is in most kinds of liquid. So titanium has good stability in acid and other mediums. This property is much better than stainless steel and other nonferrous metals have, and even as good as platinum. But in certain mediums, if the film can be dissolved, titanium will corrode. For example, titanium in DRIE, hot hydrochloride, it will corrode. But if some metal ion or antioxidant is put in the liquid, the film will be protected, titanium will be steady.

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