The surfaces of turbine blades in modern gas turbine engines see temperatures as high as 1500°C, while simultaneously experiencing extremely high strain rates. Due to the harsh conditions, modeling of such systems has become incredibly complicated and does not provide sufficient accuracy. For these applications, sensors for characterization and energy harvesting devices for in-situ wireless diagnostics capable of operating in the turbine engine environment are of great interest. Multifunctional oxide semiconductors are ideally suited for such applications, since they can be easily engineered to operate in a variety of devices including thin lm thermocouples, strain gauges, and thermoelectric generators; they are also chemically stable at very high temperatures in oxidizing environments and exhibit excellent adhesion to the surfaces of thermal barrier coatings (TBCs) typically deposited on superalloy blades. In this dissertation combinatorial chemistry techniques are utilized to develop novel materials for these applications.
|Adviser||Otto J. Gregory|
|School||UNIVERSITY OF RHODE ISLAND|
|Subjects||Electrical engineering; Materials science|
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