Properties of Alumina/Chromia Scales in N2-Containing Low Oxygen Activity Environment Investigated by Experiment and Theory
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DOI: 10.1007/s11085-016-9703-3
Abstract: The FeCrAl alloy Kanthal APMT™ was exposed to N2–5%H2 at 900 °C. Trace oxygen in the gases supplied an oxygen activity which was sufficient to render alumina and chromia thermodynamically stable. The exposures revealed that the… read more here.
Keywords: chromia; alumina chromia; chemistry; oxygen activity ... See more keywords
Oxygen and the activity and distribution of marine Thaumarchaeota.
Sign Up to like & getrecommendations! Published in 2017 at "Environmental microbiology reports"
DOI: 10.1111/1758-2229.12534
Abstract: Ammonia-oxidizing Archaea, or Thaumarchaeota (Spang et al., 2010), are an abundant and widespread group of prokaryotes. They are particularly abundant in the mesopelagic zone of the open ocean (Karner et al., 2001) and in oxygen… read more here.
Keywords: oxygen; thaumarchaeota; activity distribution; distribution marine ... See more keywords