Witryna8 kwi 2024 · Measures the force between a sharp probe tip and a sample's surface Provides nanometer resolution in 3D Applications: imaging biomolecules, studying surface properties, and nanotechnology; Benefits: operates in various environments (air, liquid, vacuum) and can analyze different sample types (soft, hard, conductive, … WitrynaOzone modification has recently been developed for improving the surface flashover performance. However, the effect of ozone on surface properties is still not fully elucidated. In this work, various concentrations of ozone are used to modify epoxy composites and their DC flashover voltages in SF 6 at 0.1 MPa are evaluated. The …
Mechanism on improved surface flashover performances in …
WitrynaIt was found that the dc surface flashover voltage of the samples increases greatly with a decrease of the dc conductivity of the ZnO varistor ceramic layer and is improved by 81% compared with the Al 2 O 3 ceramic sam… more Identifiers Authors Shengtao Li State Key Lab. of Electr. Insulation & Power Equip., Xi'an Jiaotong Univ., Xi'an, China WitrynaSeveral models describing cathode-initiated flashover have been built on the pioneering work of Boersch and coworkers, published in 1963, and credit the breakdown mechanism to the action of an intense secondary-electron … how do i sell my car to carvana
Methods of increasing the surface flashover potential in vacuum
Witryna31 mar 2024 · The NPS were cleaned in low-salinity water with PH 7 and vacuum dried for 12 h to remove water. The EP was mixed with NPS with different mass fractions. ... It can be concluded that the effective reduction of the expansion coefficient of the electrical tree and the improvement of the breakdown lifetime in EP/SiO 2-0.5 and EP/SiO 2-1 … WitrynaSurface flashover is a crucial issue in the field of electrical insulation, and it involves many complex physical processes. In this paper, the development process of the surface flashover was studied from different methods. The initial process of positive surface streamers in different gas environments (air, N2, CO2) was studied by photoelectric … Witryna8 kwi 2024 · The objective of the study was to modify the surface of the silicone rubber, using dielectric barrier discharge (DBD) to improve its hydrophilic properties. The influence of the exposure time, discharge power, and gas composition—in which the dielectric barrier discharge was generated—on the properties of the silicone … how do i sell my clothes online