Article - 29 May 2001
Invar has the lowest thermal expansion of any known metal or alloy from room temperature up to 230?C. Special low expansion and sealing alloy grades are available. Applications include thermostats,...
Article - 16 Feb 2002
The only material that is practically used for electron emitters is tungsten. Although there are other electropositive metals that yield higher emission rates, tungsten has an extremely low vapor...
Article - 25 Oct 2005
A new type of triode field-emission display constructed by the ceramic cold emitter was designed and tested. The display had three electrodes, a ceramic cold emitter, extraction gate and accelerating...
Article - 28 Feb 2002
Buckytubes have potential applications in fields such as field emitters, conductive polymers, energy storage, molecular electronics, thermal materials, structural composites, fibres and fabrics,...
Article - 23 Nov 2001
Materials with grain sizes in the order of a billionth of a meter are called nanomaterials, or nanocrystalline materials, which can be used for a range of structural and non-structural applications.
Article - 11 Apr 2001
This article looks at technologies that have been used for displays for video output. The materials and technologies associated with emerging technologies such as LCD's, PDP's, FED's are described as...