Abstract
The effects of the adsorption of hydrogen and oxygen on the growth of cadmium from the vapor onto polycrystalline tungsten have been studied. We find that hydrogen does not affect the growth behavior in any way. Oxygen, on the other hand, drastically diminishes the chemisorption of cadmium on tungsten and inhibits growth. Appreciable supersaturation is needed to induce nucleation and growth on oxidized tungsten. Oxygen prevents epitaxial growth, leading instead to formation of small, irregularly oriented islands and of a few whiskers. Experimental results on the kinetics and topography of the deposition are compared with nucleation theory.
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Voorhoeve, R.J.H., Wagner, R.S. Adsorption, nucleation, and growth of cadmium on tungsten covered with oxygen or hydrogen. Metall Trans 2, 3421–3432 (1971). https://doi.org/10.1007/BF02811624
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DOI: https://doi.org/10.1007/BF02811624