A Glass-Ceramic Optical Thermal History Sensor for Extreme Environments

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-08-C-5204
Agency Tracking Number: F071-138-0820
Amount: $749,988.00
Phase: Phase II
Program: SBIR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: AF071-138
Solicitation Number: 2007.1
Small Business Information
2572 White Road, Irvine, CA, 92614
DUNS: 188465819
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Bauke Heeg
 Senior Scientist
 (503) 659-1584
Business Contact
 Cecil Hess
Title: President
Phone: (949) 553-0688
Email: cecilh@metrolaserinc.com
Research Institution
This proposal outlines a plan to design, develop and test a prototype glass-ceramic thermal history sensor for use in extreme environments such as encountered in a gas turbine. The proposed sensor is wireless and provides more information than merely the maximum exposure temperature as in the case of a thermal fuse. The sensor will be developed for use in the range of 700 – 1200 degrees centigrade, with a temperature resolution on the order of 30 degrees or better. This is achieved with an array of at least 16 sensor elements with different crystallization rates. The particular innovations outlined in this proposal are: (1) the development of new materials that allow significant increase in sensitivity to time at temperature; (2) an accurate optical sensor readout method that is insensitive to alignment errors and easy to operate; and (3) a data inversion method for reconstruction of the thermal history from a given sensor readout. Several sensor module considerations will be investigated in detail, including sensitivity of crystallization kinetics to moisture in the environment, module assembly, and the effects of thermal and annealing strains. A prototype sensor capable of withstanding prolonged cycling will be developed and tested in a high temperature furnace, and delivered at the end of the Phase II, together with the sensor readout system, for use in further evaluation and experimental demonstrations.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government