Abstract
Conventional ceramic processing techniques use high-temperature sintering to achieve high degrees of densification in ceramic compacts; however, this process uses a significant amount of energy. Room-temperature fabrication (RTF) of ceramic materials presents a promising energy-efficient alternative, which effectively eliminates the need to use a furnace. It also allows for cofiring of materials with lower sintering temperatures; however, the multiphase composition and hygroscopic nature of pellets produced using this method make fabricating functional ceramics a challenge. Our goal is to fabricate capacitors with properties comparable to those produced via conventional techniques. Composite pellets composed of the dielectric PbZr x Ti 1-x O 3 (PZT) and Ba 1-x Sr x TiO 3 (BST) perovskite ceramics and Li 2 MoO 4 binder will be synthesized via RTF. The volume fraction of binder material and ceramic particle size distribution and composition will be varied to minimize porosity and optimize relative permittivity, which will be measured using an LCR meter at temperatures ranging from -60 — 150°C.
| Original language | American English |
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| State | Published - 12 Jul 2021 |