The thermoelectric method for non-destructive evaluation: a finite element study

The thermoelectric method for non-destructive evaluation of inhomogeneous samples is analysed using the finite element technique. As a case study, the magnetic field generated by thermoelectric currents induced in niobium plates with tantalum inclusions is considered. It is shown that this technique...

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Bibliographic Details
Published inJournal of physics. D, Applied physics Vol. 38; no. 21; pp. 3985 - 3990
Main Authors Pattabiraman, M, Nagendran, R, Baisnab, D K, Janawadkar, M P, Hariharan, Y
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 07.11.2005
Institute of Physics
Subjects
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Materials science
Materials testing
Physics
Finite element method
Electrical measurement
Non destructive method
Superconductors
Tantalum
Thermoelectric power
Microwave resonator
Inclusions
Niobium
Non contact measurement
Weld
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Summary:The thermoelectric method for non-destructive evaluation of inhomogeneous samples is analysed using the finite element technique. As a case study, the magnetic field generated by thermoelectric currents induced in niobium plates with tantalum inclusions is considered. It is shown that this technique can be effectively used to evaluate niobium plates used for superconducting radio frequency resonators. It is further shown that this technique could also be used for non-contact weld inspection and is superior to weld characterization by direct measurement of the thermopower using a reference electrode in contact.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/38/21/024