Electrical characterization of ceramic insulation coatings for magnet technology

In this study, electrical characterization of ceramic insulation coatings w ere evaluated by resistive, capacitance, and high voltage breakdown techniq ues. The insulation coatings were produced on Ag or AgMg sheathed Bi-2212 t apes and Cu-Nb3Sn wires by continuous, reel-to-reel sol-gel process. The co atings were then annealed at several temperatures and times. Dielectric con stant and high voltage breakdown values for the insulation coatings were me asured by using a capacitive technique and High Voltage Breakdown-AC Dielec tric tester, respectively. The electrical properties of the coatings with d opant materials, number of dipping, temperature and time of annealing proce ss are presented.