Determination and assessment of a complete and self-consistent electron-neutral collision cross-section set for the C4F7N molecule

Author:

Zhang BoyaORCID,Hao MaiORCID,Yao YuyangORCID,Xiong JiayuORCID,Li XingwenORCID,Murphy Anthony BORCID,Sinha NidhiORCID,Antony BobbyORCID,Ambalampitiya Harindranath B

Abstract

Abstract The perfluoronitrile C4F7N is considered a promising SF6-alternative in high-voltage gas-insulated apparatus, thanks to its high dielectric strength and low global warming potential. However, a complete and consistent set of electron-neutral collision cross-sections of C4F7N is still lacking, which hinders relevant plasma modeling. In this contribution, the available electron-neutral collision cross-sections of C4F7N are first compiled and assessed. The initial cross-sections are adjusted iteratively by the electron swarm method to determine a complete and self-consistent cross-section set of C4F7N for the first time. The set is validated by a systematic comparison of electron swarm parameters between Boltzmann equation analysis and experimental measurements in pure C4F7N as well as C4F7N/N2 and C4F7N/Ar mixtures. The proposed cross-section set of C4F7N will be made available to the community in the LXCat database. It will be of particular importance for applications with an emphasis on the discharge mechanisms of this novel gas.

Funder

Shaanxi Provincial Science and Technology Plan Project

National Natural Science Foundation of China

Publisher

IOP Publishing

Subject

Surfaces, Coatings and Films,Acoustics and Ultrasonics,Condensed Matter Physics,Electronic, Optical and Magnetic Materials

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