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Download Gaseous Dielectrics IX by H. Hotop (auth.), Loucas G. Christophorou, James K. Olthoff PDF

By H. Hotop (auth.), Loucas G. Christophorou, James K. Olthoff (eds.)

Gaseous Dielectrics IX covers contemporary advances and advancements in quite a lot of easy, utilized, and commercial components of gaseous dielectrics.

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It should be noted that the observed variation of (EINhm with the relative amount of C2F4 in the C2F4/Ar mixtures is a good example of the breakdown of Paschen's law. The law only holds when the physical properties of the gaseous medium are not changing with gas pressure and/or gas composition. 4. SUMMARY Measurements of electron transport, ionization, and effective attachment coefficients are reported for C2F4. In addition, measurements of the electron drift velocity and the effective ionization coefficient as a function of the density-reduced electric field EIN are reported for mixtures of C2F4 with Ar.

25 -- -- tf tvt:Ngt A {Bis 1976} ( 1l:ta'l1976) • t:. ° ° •• t:. 0 10 1 EIN (Td) 0 100 (Td) Figure 7. U 10 100 1000 E/N 10000 (Td) Figure 8, Left: The drift velocity ofCF3+ in CF 4, and CHF2+ in CHF 3 (Basurto and de Urquijo 2001). Right: The reduced mobility of Ar+ in Ar (Basurto et aJ 2000). , :ZOoo, Phys. Rev. , 200 II, To be published in Phys. Rev. , 200 1b, To be published in J. , 1965, Phys. , 1983, J. Chem. K, 2000b, J. Phys. Chern. , 1985,J. Phys. , 19901, A survey ofrecent research on ion transport in SF6, in Nonequilibrium Effects in Ion and Electron Transport, J.

Chem. , in press (2001). 1. Dutton, A survey of electron swann data, J. Phys. Chem. Ref Data 4,577-856 (1975). 10. S. G. Lias, 1. E. Bartness, 1. F. Liebennan, J. L. Holmes, R. D. Levin, and W. G. Mallard, Gas-phase ion and neutral thennochemistry, 1. Phys. Chem. Ref Data 17, 1-861 (1988). 48 RATE CONSTANTS FOR UNIMOLECULAR DECOMPOSITION OF SF6- Yicheng Wang,t R. L. Champion,* I. V. Dyakov,* and B. L. Peko** 1. INTRODUCTION Sulfur hexafluoride (SF6) is widely used as a gaseous dielectric in high-voltage applications due to its extremely large cross section for electron attachment [1-3] and the stability of SF6' with respect to decomposition in subsequent collisions with SF6 [4].

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