On the Thermionic and Adsorptive Properties of the Surfaces of a Tungsten Single Crystal

Martin, S.

doi:10.1103/physrev.56.947

Cited by 101 publications

(5 citation statements)

References 14 publications

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“…We found a similar result when the nanoparticles are heated to the melting temperature and cooled down slowly. Our results are in good agreement with an earlier experiment that found no evidence for a faceted or step-like microstructure in a single tungsten crystal [51].…”

Section: Resultssupporting

confidence: 93%

Melting tungsten nanoparticles: a molecular dynamics study

Moitra

Kim

Houze

et al. 2008

J. Phys. D: Appl. Phys.

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We report a molecular dynamics simulation of melting of tungsten (W) nanoparticles. The modified embedded atom method (MEAM) interatomic potentials are used to describe the interaction between tungsten atoms. The melting temperature of unsupported tungsten nanoparticles of different sizes are found to decrease as the size of the particles decreases. The melting temperature obtained in the present study is approximately a decreasing function of inverse radius, in a good agreement with the predictions of thermodynamic models. We also observed that the melting of a W nanoparticle is preceded by the premelting of its outer skin at a temperature lower than its melting temperature.PACS. 61.46.Df Nanoparticles -61.46.-w Nanoscale materials -64.70.Dv Solid-liquid transitions -65.80.+n Thermal properties of small particles, nanocrystals, and nanotubes

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Section: Resultssupporting

confidence: 93%

Melting tungsten nanoparticles: a molecular dynamics study

Moitra

Kim

Houze

et al. 2008

J. Phys. D: Appl. Phys.

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“…Pore area distributions were determined by the Barrett, Joyner, Halenda method. 3 The results are plotted in Fig. 1.…”

Section: Methodsmentioning

confidence: 99%

Characterization of Physical Adsorption Systems. III. The Separate Effects of Pore Size and Surface Acidity upon the Adsorbent Capacities of Activated Carbons

Graham¹

1955

J. Phys. Chem.

134

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“…Martin (19), in studying thermionic emission from a polished crystal sphere of tungsten, found that adsorption of barium and cesium was a function of crystallographic direction. When the surface was clean, cesium was adsorbed on the (110) and (211) planes in preference to others, and barium on the (100) plane.…”

Section: Previous Experimental Workmentioning

confidence: 99%

The Reaction of Gases on the Surface of a Single Crystal of Copper. I. Oxygen.

Gwathmey¹,

Benton²

1942

J. Phys. Chem.

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Many important processes, such as corrosion, contact catalysis, and powder metallurgy, depend in varying degrees on the reaction of gases on the surface of metals. The object of this investigation is to study the mechanism of this type of reaction on single crystals of copper. In this paper (Part I) experiments are described which show that the rate of reaction with oxygen varies greatly with the crystal plane along which the surface is prepared. In Part II experiments will be described which show that catalytic reactions between certain gases on the surface of a single crystal cause rearrangements of the metal atoms in the surface to develop special planes in a manner dependent on the nature of

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On the Thermionic and Adsorptive Properties of the Surfaces of a Tungsten Single Crystal

Cited by 101 publications

References 14 publications

Melting tungsten nanoparticles: a molecular dynamics study

Melting tungsten nanoparticles: a molecular dynamics study

Characterization of Physical Adsorption Systems. III. The Separate Effects of Pore Size and Surface Acidity upon the Adsorbent Capacities of Activated Carbons

The Reaction of Gases on the Surface of a Single Crystal of Copper. I. Oxygen.

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