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Meeting Materials Science & Technology 2020
Symposium Advanced Materials for Harsh Environments
Presentation Title Evaluation of Electroceramic-based LC Resonator for Monitoring High Temperature Systems
Author(s) Kavin Sivaneri Varadharajan Id, Gunes Alp Yakaboylu, Peter Dreher Pozo, Matthew Thomas, Riley Vozar, Katarzyna Sabolsky, Edward Sabolsky , Konstantinos Sierros, Daryl Reynolds
On-Site Speaker (Planned) Kavin Sivaneri Varadharajan Id
Abstract Scope The main object of this work focused on analyzing the stability and performance of various electroceramic oxides for the fabrication of LC-based RFID tags to wirelessly monitor the health of a high temperature system. The electroceramic materials were evaluated based on their operating temperature regime, electrical conductivity, thermal, and microstructural/chemical stability. The RFID tags were fabricated by depositing the electroceramic materials on polycrystalline alumina substrates by a novel microcasting technique. The parameters contributing to the wireless response such as the geometric form-factor, the distance between the sensor and the interrogator antenna, and environmental effects were evaluated in a realistic working environment of the sensor. The material characterization of the electroceramic materials and the sensors were performed by scanning electron microscopy, 4-point conductivity, impedance spectroscopy, and X-ray diffraction. The wireless response of the LC resonator was characterized by a multimode user-defined software radio which acts as a signal transmitter and receiver.

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