AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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Autori: L. KENÉZ.
Published Online: 2017-01-05
Published Print: 2017-01-31
VIEW PDF: FORMATION OF AMMONIA IN A LINEAR PLASMA REACTOR
A study of ammonia formation in DC plasma discharge is presented in function of gas composition and working temperature by using a laboratory scale plasma nitriding reactor. The nitriding process took place in case of a Hollow Cathode (HC) configuration with treated part on Anodic Potential (HCAPN). It was found that in the temperature range of 500-700 K the yield of ammonia was directly proportional with the discharge current and the coefficient of efficiency was found to be constant. This indicates that ammonia formation in low temperature plasma discharge is electrochemical in nature. During our experiments nitride layers was formed on both the cathode and the inner anode. This indicates that the neutral ammonia molecules have a nitrogen carrying role in the plasma nitriding process.
Keywords: linear plasma reactor, plasma nitriding, active screen, hollow cathode, anodic potential, formation of ammonia, nitrogen mass transfer.
