Abstract
Electrical breakdown of thin (60–100 Å) titania films under high dc fields in high (10−9 Torr) vacuum is discussed. Titania coatings were applied to Al2O3 insulators, using the same process as in coating of Al2O3 microwave windows to reduce multipactoring. Recorded breakdown voltages and current dependence, along with the appearance of the coatings after testing, suggest the occurrence of a reduction of the titania films to a lower-order semiconducting oxide similar to what would happen in bulk titania. It is therefore evident that such coatings are not feasible on insulators subjected to high tangential dc fields.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
