Thermodynamic Properties and Transport Coefficients of Nitrogen, Hydrogen and Helium Plasma Mixed with Silver Vapor

ZHOU Xue (周学); CUI Xinglei (崔行磊); CHEN Mo (陈默); ZHAI Guofu (翟国富)

doi:10.1088/1009-0630/18/5/20

Plasma Science and Technology > 2016 > 18(5): 560-568. > DOI: 10.1088/1009-0630/18/5/20

ZHOU Xue (周学), CUI Xinglei (崔行磊), CHEN Mo (陈默), ZHAI Guofu (翟国富). Thermodynamic Properties and Transport Coefficients of Nitrogen, Hydrogen and Helium Plasma Mixed with Silver Vapor[J]. Plasma Science and Technology, 2016, 18(5): 560-568. DOI: 10.1088/1009-0630/18/5/20

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Thermodynamic Properties and Transport Coefficients of Nitrogen, Hydrogen and Helium Plasma Mixed with Silver Vapor

School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China

Funds: supported by National Natural Science Foundation of China (Nos. 51277038 and 51307030)

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Received Date: September 07, 2015

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Abstract

Abstract

Species composites of Ag-N₂, Ag-H₂ and Ag-He plasmas in the temperature range of 3,000-20,000 K and at 1 atmospheric pressure were calculated by using the minimization of Gibbs free energy. Thermodynamic properties and transport coefficients of nitrogen, hydrogen and helium plasmas mixed with a variety of silver vapor were then calculated based on the equilibrium composites and collision integral data. The calculation procedure was verified by comparing the results obtained in this paper with the published transport coefficients on the case of pure nitrogen plasma. The influences of the silver vapor concentration on composites, thermodynamic properties and transport coefficients were finally analyzed and summarized for all the three types of plasmas. Those physical properties were important for theoretical study and numerical calculation on arc plasma generated by silver-based electrodes in those gases in sealed electromagnetic relays and contacts.
- silver mixture plasmas,
- thermodynamic properties,
- transport coeffcients,
- collision integrals

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References

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