| On the establishment of a method for characterization of material microstructure through laser-based resonant ultrasound spectroscopy. | |
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MedLine Citation:
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PMID: 18467221 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Noncontacting, laser-based resonant ultrasound spectroscopy (RUS) was applied to characterize the microstructure of a polycrystalline sample of high purity copper. The frequencies and shapes of 40 of the first 50 resonant vibrational modes were determined. The sample's elastic constants, used for theoretical prediction, were estimated using electron backscatter diffraction data to form a polycrystalline average. The difference in mode frequency between theory and experiment averages 0.7% per mode. The close agreement demonstrates that, using standard metallurgical imaging as a guide, laser-based RUS is a promising approach to characterizing material microstructure. In addition to peak location, the Q of the resonant peaks was also examined. The average Q of the lasergenerated and laser-detected resonant ultrasound spectrum was 30% higher than a spectrum produced employing a piezoelectric transducer pair for excitation and detection. |
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Authors:
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Stephen J Reese; Kenneth L Telschow; Thomas M Lillo; David H Hurley |
Publication Detail:
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Type: Evaluation Studies; Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: IEEE transactions on ultrasonics, ferroelectrics, and frequency control Volume: 55 ISSN: 0885-3010 ISO Abbreviation: IEEE Trans Ultrason Ferroelectr Freq Control Publication Date: 2008 Apr |
Date Detail:
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Created Date: 2008-05-09 Completed Date: 2008-06-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9882735 Medline TA: IEEE Trans Ultrason Ferroelectr Freq Control Country: United States |
Other Details:
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Languages: eng Pagination: 770-7 Citation Subset: IM |
Affiliation:
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Materials Characterization Department, Idaho National Laboratory, Idaho Falls, ID, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Equipment Design Equipment Failure Analysis Lasers* Materials Testing / instrumentation*, methods Refractometry / instrumentation*, methods Sensitivity and Specificity Spectrum Analysis / instrumentation*, methods Ultrasonography / instrumentation*, methods |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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