FORMATION OF AMMONIA IN A LINEAR PLASMA REACTOR

Authors

  • E. FILEP Sapientia Hungarian University of Transylvania, Romania, e_filep@uni.sapientia.ro
  • L. KENÉZ Sapientia Hungarian University of Transylvania, l_kenez@ms.sapientia.ro
  • N. KUTASI Sapientia Hungarian University of Transylvania, Romania. Corresponding author: n_kutasi@ms.sapientia.ro
  • L. FERENCZ Sapientia Hungarian University of Transylvania, Romania. Corresponding author: l_ferencz@ms.sapientia.ro https://orcid.org/0000-0003-3042-9732

Keywords:

linear plasma reactor, plasma nitriding, active screen, hollow cathode, anodic potential, formation of ammonia, nitrogen mass transfer.

Abstract

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.

Author Biographies

E. FILEP, Sapientia Hungarian University of Transylvania, Romania, e_filep@uni.sapientia.ro

Sapientia Hungarian University of Transylvania, Human and Technical Sciences Faculty, Electrical Engineering Department, Tîrgu-Mureș/Corunca, RO-540485¸ Șos. Sighișoarei Nr. 1C, Romania, e_filep@uni.sapientia.ro

L. KENÉZ, Sapientia Hungarian University of Transylvania, l_kenez@ms.sapientia.ro

Sapientia Hungarian University of Transylvania, Human and Technical Sciences Faculty, Electrical Engineering Department, Tîrgu-Mureș/Corunca, RO-540485¸ Șos. Sighișoarei Nr. 1C, Romania. Corresponding author: l_kenez@ms.sapientia.ro

N. KUTASI, Sapientia Hungarian University of Transylvania, Romania. Corresponding author: n_kutasi@ms.sapientia.ro

Sapientia Hungarian University of Transylvania, Human and Technical Sciences Faculty, Electrical Engineering Department, Tîrgu-Mureș/Corunca, RO-540485¸ Șos. Sighișoarei Nr. 1C, Romania. Corresponding author: n_kutasi@ms.sapientia.ro

L. FERENCZ, Sapientia Hungarian University of Transylvania, Romania. Corresponding author: l_ferencz@ms.sapientia.ro

Sapientia Hungarian University of Transylvania, Human and Technical Sciences Faculty, Department of Horticulture, Tîrgu-Mureș/Corunca, RO-540485¸ Șos. Sighișoarei Nr. 1C, Romania. Corresponding author: l_ferencz@ms.sapientia.ro

References

Brewer, A.K., Westhaver, J.W.: Chemical Action in the Glow Discharge II. Further Investigation on Synthesis of Ammonia. J. Phys. Chem. 1930. 34 (1), pp 153-164

Auner, N.: Method for producing ammonia, Patent US 20130039834 A1

Burlakov I., Börner K., Spies. H.-J., Biermann H., Lopatik D., Zimmermann H., Röpcke J.: In-situ monitoring of plasma enhanced nitriding processes using infrared absorption and mass spectroscopy. Surf. and Coat. Techn. 206 (2012) 3955-3960

Skalecki M.G., Klümper-Westkamp H., Hoffmann F., Zoch H-W., Bischoff S., Rohde J.: Plasma nitriding potential and a new modeling approach for plasma nitriding process control. HT conf Ohio

N. Kutasi, L. Kenéz, E. Filep, A. Kelemen, Sz. Mátyási – Pulsed power supply design for DC and Active Screen Plasma Nitriding, - MACRO 2013 International Conference on Recent Achievements in Mechatronics, Automation, Computer Science and Robotics Sapientia University, Tg. Mures 2013, pp. 115-122, ISSN 2247 0948.

Kenéz L., Zsakó Z., Filep E.: Automation of plasma diagnostics measurements performed in a non-isothermal plasma reactor. Studia UBB Physica LIII, 1, 2008.

Szabó A., Wilhelmi H.: Nitrierung von Stahloberflächen. HTM 39 (1984) 4 pp 148-181

Mittemeijer, EJ.: Fundamentals of Nitriding and Nitrocarburizing. Steel Heat Treating Fundamentals and Processes, ASM Handbook, 2013; 4(A):619-646.

STUDIA UBB PHYSICA, Volume 61 (LXI), No. 2, December, 2016

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Published

2016-12-20

How to Cite

FILEP, E., KENÉZ, L., KUTASI, N., & FERENCZ, L. (2016). FORMATION OF AMMONIA IN A LINEAR PLASMA REACTOR. Studia Universitatis Babeș-Bolyai Physica, 61(2), 39–48. Retrieved from http://193.231.18.162/index.php/subbphysica/article/view/5874

Issue

Volume 61, No. 2, 2016

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Articles

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Copyright (c) 2016 Studia Universitatis Babeș-Bolyai Physica

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