The et&t of sulfur segregation and hydrogen charging on the grain boundary strength of iron was investigated by a slow strain-rate tensile test at 77 K. The amount of sulfur segregation at grain boundaries was controlled by varying the initial purity of specimens and quenching temperature and was de
Hydrogenation of segregated carbon and adsorbed acetylene on iron
β Scribed by H.P. Bonzel; H.J. Krebs; W. Schwarting
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 311 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Monolayers with segregated carbon and/or adsorbed acetylene on iron fork were prepared m vacuum and characterized by theu C Is XPS spectra. The subsequent hydrogenation of these layers m I bar Hz at 500-560 K produced substantial amounts of hrgher molecular weight hydrocarbons, up to butane, m support of a cham growth mechanism not mvolvmg molecular CO
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The adsorption of different chemical substances on microporous carbon adsorbents has been investigated. It has been determined that the chemical character of the molecules adsorbed as well as the adsorbent texture determine the adsorption kinetics. In the case of alcohols, one of the parameters dete