ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The interaction of single crystal molybdenum disulphide with various gases has been followed dynamically usingin situ scanning transmission electron microscopy. It is found that in the presence of oxygen attack takes place preferentially at edges and point defects on the basal plane. I1 appears that the reaction proceeds by two pathways, conversion to MoO2 predominates at low temperatures (690 K) end formation of MoO3 becoming significant at jigher temperatures (800 K), with intermediate metastable oxides playing some role. Reduction of molybdenum disulphide in hydrogen is a relatively sluggish reaction and attack occurs exclusively at the edge regions of crystals resulting in the formation of metallic molybdenum as major product with e minor amount of Mo2S3.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01133329
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