Abstract Scope |
For modern microwave and millimeter wave communication technologies and miniaturized designs, the production of dielectric ceramics with tunable dielectric constant (K) and high quality factor (Q) is critical. Hybrid and additive manufacturing (AM) techniques are needed for ceramics in order to build custom-design dielectric resonators, antennas, etc. Dry aerosol deposition (DAD) is a novel kinetic AM process which can produce thick film and low profile 3D ceramic structures at room temperature. BaNd2Ti4O12 (BNT) is a complex perovskite microwave dielectric with high K, high Q, and low thermal coefficient of resonant frequency. Preliminary work from our lab on DAD BNT will be presented, including powder preparation, optimized process parameters, microstructural analysis and (RF) dielectric properties of films. Comparison to sintered, bulk BNT will be made. |