High-Temperature Sapphire Pressure Sensors for Harsh Environments


<strong>Left:</strong> Illustration of the fiber-optic lever transduction<br/>scheme implemented in the pressure sensor<br/><strong>Right:</strong> Schematic of sensor and packaging for the<br/>high-temperature pressure sensor
Left: Illustration of the fiber-optic lever transduction
scheme implemented in the pressure sensor
Right: Schematic of sensor and packaging for the
high-temperature pressure sensor
University of Florida
Website:  University of Florida
Award Number:  FE0012370
Project Duration:  01/01/2014 – 08/31/2018
Total Award Value:  $1,098,191
DOE Share:  $850,571
Performer Share:  $247,620
Technology Area:  Plant Optimization Technologies
Key Technology:  Sensors & Controls
Location:  Gainesville, Florida

Project Description

This project will demonstrate advanced manufacturing technologies for sapphire-based, high-temperature pressure sensors. Picosecond laser micromachining and spark plasma sintering will be used to achieve this goal. Project objectives include identifying laser ablation process variables, the characterization (and mitigation) of thermo-mechanical damage via the manufacturing process, and the development of cost/energy efficient procedures for rapid joining of components. The final result will be a fully packaged sapphire optical sensor capable of deployment in gas turbine applications at temperatures in excess of 1000 degrees Celsius (°C) and pressures up to 1000 pounds per square inch (psi).

Project Benefits

This project will demonstrate advanced manufacturing technologies for high-temperature pressure sensors and develop an optical sapphire pressure sensor capable of operating in environments in excess of 1000°C and 1000 psi. Overall, developing sensors to assist in monitoring the operation and performance of critical components in harsh conditions obtainable in power plants, combustion turbines, and gasification facilities, is expected to lower operating costs.

Contact Information

Federal Project Manager 
Sydni Credle: sydni.credle@netl.doe.gov
Technology Manager 
Briggs White: briggs.white@netl.doe.gov
Principal Investigator 
Mark Sheplak: sheplak@ufl.edu

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