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17294.pdf (5.68 MB)
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Abstract Header
Advanced thermoelectric power measurements using deployable three-point electrodes
Author Info
Raja, Santosh
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439310893
Abstract Details
Year and Degree
2015, MS, University of Cincinnati, Engineering and Applied Science: Aerospace Engineering.
Abstract
Thermoelectric techniques are sensitive to the slightest variations in material properties regardless of the surface finish, shape and size of the material to be tested. This makes it a very promising candidate to characterize materials in scenarios where the changes in the material properties are so small that they cannot be measured otherwise because of variations in size and shape. Unfortunately, inherent measurement errors caused by the imperfect interfacial contact between the specimen and the hot electrode in the widely used two-point contact TEP measurements adversely affects the accuracy and call for the development of an improved TEP measurement technique for reliable material characterization. Permanently fixed electrodes yield the best results and are most suitable for long term structural health monitoring. In this work, a novel three-point measurement technique is introduced for reliable thermoelectric power measurement. The values of the absolute TEP obtained using the deployable three-point configuration is compared with the permanently attached configuration to determine the accuracy of the measurement. Finally, a computational model is developed to study the effect of the imperfect interfacial layer on the three-point measurement technique and better understand the obtained experimental results.
Committee
Peter Nagy, Ph.D. (Committee Chair)
San-Mou Jeng, Ph.D. (Committee Member)
Francesco Simonetti, Ph.D. (Committee Member)
Pages
86 p.
Subject Headings
Aerospace Materials
Keywords
Thermoelectricity
;
Three-point deployable configuration
;
Imperfect interface
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Citations
Raja, S. (2015).
Advanced thermoelectric power measurements using deployable three-point electrodes
[Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439310893
APA Style (7th edition)
Raja, Santosh.
Advanced thermoelectric power measurements using deployable three-point electrodes.
2015. University of Cincinnati, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439310893.
MLA Style (8th edition)
Raja, Santosh. "Advanced thermoelectric power measurements using deployable three-point electrodes." Master's thesis, University of Cincinnati, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439310893
Chicago Manual of Style (17th edition)
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Document number:
ucin1439310893
Download Count:
807
Copyright Info
© 2015, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.