Topic
Tungsten
About: Tungsten is a research topic. Over the lifetime, 35225 publications have been published within this topic receiving 456213 citations. The topic is also known as: W & element 74.
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TL;DR: Tungsten oxide on titania catalysts with loadings of 3.5-11 μmol(W) m−2BET were prepared in a multiple grafting procedure using tungsten (VI) -oxo-methanolate and tengsten(V) -ethanolates as precursors as mentioned in this paper.
170 citations
Patent•
13 Jul 2004
TL;DR: In this paper, a method for forming an amorphous carbon layer, deposited on a dielectric material such as oxide, nitride, silicon carbide, carbon doped oxide, etc., or a metal layer such as tungsten, aluminum or poly-silicon.
Abstract: A method is provided for forming an amorphous carbon layer, deposited on a dielectric material such as oxide, nitride, silicon carbide, carbon doped oxide, etc., or a metal layer such as tungsten, aluminum or poly-silicon. The method includes the use of chamber seasoning, variable thickness of seasoning film, wider spacing, variable process gas flows, post-deposition purge with inert gas, and post-deposition plasma purge, among others, to make the deposition of an amorphous carbon film at low deposition temperatures possible without any defects or particle contamination.
170 citations
TL;DR: In this paper, a comparative study of the optical and electrochromic properties of different types of WO 3 thin films has been carried out by atomic force microscopy (AFM), optical studies and ATR-FTIR spectroscopy.
169 citations
TL;DR: In this article, the surface tension and surface migration constants of tungsten were determined using pulsed field emission microscopy (PEEM) based on Herring's theory of transport phenomena in solids.
Abstract: A determination of the surface tension and surface migration constants of metals in the solid phase, based on the use of pulsed field emission microscopy, is discussed. The experimental technique is described. An application to field emission cathodes of Herring's theory of transport phenomena in solids is given, which yields the necessary relations required for the determination of the basic physical constants from the experimental data. Results are presented and discussed for the case of tungsten. The method is applicable to a number of other metals, several of which are currently under investigation.
169 citations
169 citations