About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
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Advanced Materials for Harsh Environments
|
Presentation Title |
Evaluation of High Temperature Planar Passive Wireless Sensor Fabricated by Stereolithography Process |
Author(s) |
Kavin Sivaneri Varadharajan Id, Matthew Barre, Zachary J Lynch, Engin Ciftyurek, Katarzyna Sabolsky, Edward M Sabolsky, Konstantinos A Sierros, Daryl S Reynolds |
On-Site Speaker (Planned) |
Kavin Sivaneri Varadharajan Id |
Abstract Scope |
In this work, an all-ceramic passive wireless sensor capable of operating at high temperatures in harsh environmental conditions was fabricated by directly depositing ceramic-forming polysilizane on an alumina dielectric substrate using a stereolithography process. Different active and inactive filler materials were loaded into the pre-ceramic polymer and their effect on the cross-linking, microstructural stability and electrical properties were studied. The photoactive preceramic polymer was cast directly onto the alumina substrate and the LC pattern was realized using a 365 nm UV source mounted onto a commercial 3D printer by fiber optics. The substrate was developed to realize the desired RLC sensor and sintered at 1200 – 1400oC. The microstructural and electrical properties were evaluated by scanning electron microscopy, 4-point conductivity, impedance spectroscopy, and X-ray diffractometer. The wireless response of the RLC sensor was characterized by a multimode user-defined software radio which acts as a signal transmitter and receiver. |