Investigation of light emitted from ferroelectric ceramic's surface charged by ac high voltages was done in the vacuum. Some emission light characteristics of ferroelectric such as intensity shape, phase distribution and spectrum emission of light were concluded. It is believed that dielectric constant of ferroelectric ceramic significantly contributed in compose emission light characteristic after compared with result of alumina ceramic. We observed that inception electroluminescence voltage and flashover of ferroelectric ceramic lower than alumina ceramic, also the intensity light emitted from ferroelectric's surface due to ac high voltage lower than alumina ceramic.
Keywords : ferroelectric, alumina, ceramic, electroluminescence
Azhar Kamal
Keywords : ferroelectric, alumina, ceramic, electroluminescence
Azhar Kamal
