Development of metrological NDE methods for microturbine ceramic components

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In this work, X-ray computed tomographic imaging technology with high spatial resolution has been explored for metrological applications to Si{sub 3}N{sub 4} ceramic turbine wheels. X-ray computed tomography (XCT) data were acquired by a charge-coupled device detector coupled to an image intensifier. Cone-beam XCT reconstruction algorithms were used to allow full-volume data acquisition from the turbine wheels. Special software was developed so that edge detection and complex blade contours could be determined from the XCT data. The feasibility of using the XCT for dimensional analyses was compared with that of a coordinate-measuring machine. Details of the XCT system, data acquisition, ... continued below

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8 p.

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Lee, H.-R. & Ellingson, W. A. December 23, 1999.

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Description

In this work, X-ray computed tomographic imaging technology with high spatial resolution has been explored for metrological applications to Si{sub 3}N{sub 4} ceramic turbine wheels. X-ray computed tomography (XCT) data were acquired by a charge-coupled device detector coupled to an image intensifier. Cone-beam XCT reconstruction algorithms were used to allow full-volume data acquisition from the turbine wheels. Special software was developed so that edge detection and complex blade contours could be determined from the XCT data. The feasibility of using the XCT for dimensional analyses was compared with that of a coordinate-measuring machine. Details of the XCT system, data acquisition, and dimensional comparisons will be presented.

Physical Description

8 p.

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OSTI as DE00751852

Medium: P; Size: 8 pages

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  • 45th ASME Gas Turbine and Aeroengine Technical Congress Exposition and Symposium, Munich (DE), 05/08/2000--05/11/2000

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  • Report No.: ANL/ET/CP-99994
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 751852
  • Archival Resource Key: ark:/67531/metadc707825

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Office of Scientific & Technical Information Technical Reports

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  • December 23, 1999

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 11, 2017, 3:56 p.m.

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Lee, H.-R. & Ellingson, W. A. Development of metrological NDE methods for microturbine ceramic components, article, December 23, 1999; Illinois. (digital.library.unt.edu/ark:/67531/metadc707825/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.