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Nondestructive Evaluation Techniques for Silicon Carbide Heat-Exchanger Tubes : Second Annual Report, October 1978-September 1979

Description: This report discusses the development of ultrasonic testing, acoustic microscopy, dye-enhanced radiography, holographic interferometry, and infrared scanning techniques for flaw detection in silicon carbide (SiC) heat-exchanger tubing. Both preservice and in-service testing requirements are discussed. An ultrasonic boreside probe and an acoustic microscope stage have been designed for continuous monitoring of SiC tubing. Preliminary results with these acoustic systems are presented. In addition… more
Date: November 1979
Creator: Kupperman, D. S.; Yuhas, D.; Deininger, W. & Sciammarella, Cesar A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of Nondestructive Evaluation Techniques for High-Temperature Ceramic Heat Exchanger Components : Third Annual Report, October 1979-September 1980

Description: The goals of the present program are not only to develop hardware and procedures for efficiently inspecting ceramic heat-exchanger components in conventional ways, but also to develop advanced NDE techniques that will allow effective failure prediction. The main objectives in FY 1980 have been to (a) develop a computer-interfaced ultrasonic bore-side probe for pre-service and in-service inspection, (b) develop and assess techniques for inspection of SiC tubing by acoustic microscopy, and (c) ca… more
Date: 1980
Creator: Kupperman, D. S.; Yuhas, D.; Sciammarella, Cesar A.; Caines, M. J. & Winiecki, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preliminary Evaluation of Several Nondestructive-Evaluation Techniques for Silicon Nitride Gas-Turbine Rotors

Description: Several nondestructive-evaluation (NDE) techniques have been examined to establish their effectiveness for detecting critically sized flaws in silicon nitride gas-turbine rotors. Preliminary results have been obtained for holographic interferometry, acoustic microscopy, dye-enhanced radiography, acoustic emission, and acoustic-impact testing techniques. This report discusses the relative effectiveness of these techniques in terms of their applicability to the rotor geometry and ability to detec… more
Date: 1978?
Creator: Kupperman, D. S.; Sciammarella, C.; Lapinski, N. P.; Sather, A.; Yuhas, D.; Kessler, L. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nondestructive Evaluation Techniques for Silicon Carbide Heat-Exchanger Tubes : Annual Report, October 1977-September 1978

Description: This report discusses the adequacy of several nondestructive evaluation techniques for the detection of flaws in silicon carbide heat-exchanger tubing. Experimental results have been obtained for conventional ultrasonic testing, acoustic microscopy, conventional and dye-enhanced radiography, holographic interferometry, infrared scanning and internal-friction measurements.
Date: March 1979
Creator: Kupperman, D. S.; Yuhas, D.; Sciammarella, Cesar A.; Lapinski, N. P. & Fiore, N. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nondestructive evaluation techniques for silicon carbide heat-exchanger tubing

Description: The adequacy of various nondestructive evaluation (NDE) techniques for inspecting silicon carbide heat-exchanger tubing is discussed. These methods include conventional ultrasonics, acoustic microscopy, conventional and dye-enhanced radiography, holographic interferometry and infrared scanning techniques. On the basis of current test results and an examination of the discussions in available literature, these techniques were compared with respect to (a) effectiveness in detecting cracks, pittin… more
Date: January 1, 1979
Creator: Kupperman, D.S.; Deininger, W.D.; Lapinski, N.P.; Sciammarella, C. & Yuhas, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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