Abstract
Y1Ba2Cu3O7-x (YBCO) was studied as a potential electrode material for devices utilizing perovskite ferroelectric materials. Electrode thick film coatings were made on Barium Titanate (BT), Lead Magnesium Niobate-Lead Zinc Niobate (PMN-24 PZN), Lead Magnesium Niobate-Lead Titanate (PMN-7.5PT) and Lead Zirconate Titanate (PZT). Conventional slow fire techniques with flowing oxygen were initially used to fire the electrode onto the substrate. These 24 hour firing cycles caused excessive interactions at the electrode-substrate interface, as determined by dielectric constant and loss data. PbO vapor pressure was found to play a key role in the adhesion of these coatings.An alternate “fast fire” technique was excellent in producing conductive, adhering electrode coatings. YBCO electroded PZT samples performed identical to PZT electroded with gold. The YBCO electrode was found to react more with the PMN based substrates.
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