Tel: 01386 861600
Fax: 01386 861602
sales@lowdenlimited.co.uk
Bismuth Tin Lead Indium Cadmium Antimony Zinc
Nickel Copper Aluminium Molybdenum Tungsten Rehnium Tantalum

 

Tantalum ( Ta - 3020°c )

 

Tantalum is a gray, heavy, and very hard metal, with a platinum like color when polished. When pure, it is malleable, ductile and can be drawn into fine wire, which is used as a filament for evaporating metals such as aluminum. Tantalum is almost completely immune to chemical attack at temperatures below 150 deg C, At high temperatures, tantalum becomes much more reactive. The element has a melting point exceeded only by tungsten and rhenium. Tantalum is used to make a variety of alloys with desirable properties such as high melting point, high strength and good ductility.

Data

 

Melting Point 2996 oC
Boiling Point 5425 oC
Density 16.6g/cm3
Thermal Conductivity @ 20oC 0.130cal/(s.cm. oC)
Specific Heat @ 20oC 0.036cal/g
Latent Heat Of Fusion 6.8k-cal/g-atom
Brinell Hardness 35-70 x10³psi



 

Uses

Tantalum is used to make electrolytic capacitors and vacuum furnace parts, which account for about 60% of its use. The metal is also widely used to fabricate chemical process equipment, nuclear reactors, and aircraft and missile parts. Tantalum is completely immune to body liquids and is a nonirritating metal. It has, therefore, found wide use in making surgical appliances. Tantalum oxide is used to make special glass with high index of refraction for camera lenses.

Available Forms

This material is available in the following forms

 

 

Resources

Daily Read

Copyright © 2010 Lowden Limited | All Rights Reserved

© This is the web site of Lowden Ltd on the Internet. All copyrights and other intellectual property rights in the design and contents of this web site are reserved to Lowden Ltd. You may use it only as Lowden Ltd expressly permits you to. Any copying of the design or contents, or other unauthorized use, such as downloading and printing out any web pages, will infringe the rights of Lowden Ltd under international treaty and English law. Lowden Ltd is not responsible for the content of external Internet sites.