Nitrogen discharges

In earlier work no reaction was observed to occur when metallic samples at floating potential were exposed to nitrogen discharge. It is difficult to elucidate the details of the plasma conditions used in work180 on plasma nitriding reported in the literature but two effects appear to be the probable cause of the contradictory results that have been obtained 1) impurities and 2) a low degree of nitrogen dissociation. 

A detailed kinetic study of the nitriding of Mo, Ti and Nb in a nitrogen discharge has been performed recently by Wire189) and in Ref.194,2l°) nitriding of titanium and zirconium was also investigated by Konuma and Matsumoto190 191). 

Table 5. Experimental kinetic constants for nitriding of titanium, niobium and molybdenum immersed in a low pressure nitrogen discharge at floating potential (according to Ref.189b- A is the preexponential factor,...

Umezawa, Y., Miyajima, T., Kayanne, H., and Koike, I. (2002). Significance of groundwater nitrogen discharge into coral reefs at Ishigaki Island, southwest of Japan. Coral Reefs 21, 346—356. UNEP/MAP/MED POL. (2003). Riverine transport of water, sediments and pollutants to the Mediterranean Sea. MAP Technical Reports Series. United Nations Environment Programme— Mediterranean Action Plan, Athens. 141,. pp. 1—111. 

WQA.5 NITROGEN DISCHARGE FROM A SEWAGE TREATMENT PLANT... 

First calculate the total nitrogen discharge, m, from the treatment plant ... 

Deutsch R. D. and Hieftje G. M. (1985) Development of a microwave-induced nitrogen discharge at atmospheric pressure (MINDAP),... 

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