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.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, a systematic investigation of mean sizes and mean center-of-mass distances of metal clusters in Me-DLC films is presented, with four different kinds of metal (gold, platinum, tungsten and iron) and metal contents ranging from 0 to 50 at% are analysed, each by four complementary analytical techniques: small angle X-ray scattering, wide angle Xray diffraction, transmission electron microscopy and scanning tunnelling microscopy.
109 citations
TL;DR: In this article, a renewed version of a surface charge approach to describe the impedance response of anodic film growth on passive metals in acidic solutions is presented, which is based on the chemistry of the Point Defect Model, the fact that oxygen vacancies are the main charge carriers in a range of oxides and the suggestion of a constant field strength in the bulk of the barrier layer.
109 citations
TL;DR: In this paper, a surface-sensitive peak about 0.4 eV below the Fermi energy was identified as a surface state, which rapidly decays during gas adsorption.
Abstract: Photoelectron energy distributions from clean, polycrystalline tungsten reveal a surface-sensitive peak about 0.4 eV below the Fermi energy. This peak, which is identified as a surface state, rapidly decays during gas adsorption, and concomitant growth of a new peak at \ensuremath{\sim}2.5 eV below the Fermi energy is observed. Over the energy range of the surface-state peak, the strength of surface-state emission relative to bulk emission decreases with increasing photon energy. These results quantitatively substantiate existing field-emission data and qualitatively agree with model photoemission calculations.
109 citations
TL;DR: Nano-crystalline W-1%Y(2)O(3) (wt.%) powder was produced by a modified solution chemical reaction of ammonium paratungstate (APT) and yttrium nitrate as discussed by the authors.
109 citations