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Review of Progress in Quantitative Nondestructive Evaluation

Ceramic Materials

Publication Year

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Full-Text Articles in Nuclear Engineering

Nondestructive Characterization Of Ceramic Composite Whiskers With Neutron Diffraction And Ultrasonic Techniques, D. S. Kupperman, S. Majumdar, S. R. Macewan, R. L. Hitterman, J. P. Singh, J. L. Routbort Jan 1988

Nondestructive Characterization Of Ceramic Composite Whiskers With Neutron Diffraction And Ultrasonic Techniques, D. S. Kupperman, S. Majumdar, S. R. Macewan, R. L. Hitterman, J. P. Singh, J. L. Routbort

Review of Progress in Quantitative Nondestructive Evaluation

A necessary step in the development of structural composites is the understanding and characterization of the bond between fiber and matrix, Questions regarding the mechanical properties of the optimum interfacial bond and how properties of the bond can be assessed nondestructively must be answered. In this paper we present some results of a program at Argonne National Laboratory (ANL) in which the characterization and control of interfacial bonds in composites are being investigated. The General Purpose Powder Diffractometer (GPPD) at the Intense Pulsed Neutron Source (IPNS) at ANL has been employed to measure residual strains in a ceramic-ceramic composite by ...


Applications Of Film Tomography Technique For Qnde, A. Notea Jan 1987

Applications Of Film Tomography Technique For Qnde, A. Notea

Review of Progress in Quantitative Nondestructive Evaluation

Tomography with X- and gamma- rays provides three-dimensional radiographic information on the examined object. The film-based tomography (1,2) generates a summation-image of a surface within the object by continuously combining back projections directly on the film. This method has many attractive features for industrial applications in which cost and simplicity are of primary importance. Some of the features are: (1) The absence of post processing allows this method to yield an image immediately on development of the film.; (2) Conventional radiologists need a short training time to master the technique as most components and concepts are familiar to them ...


Photon Ct Scanning Of Advanced Ceramic Materials, B. D. Sawicka, W. A. Ellingson Jan 1987

Photon Ct Scanning Of Advanced Ceramic Materials, B. D. Sawicka, W. A. Ellingson

Review of Progress in Quantitative Nondestructive Evaluation

Advanced ceramic materials (e. g. Si3N4, ZrO2, SiC, A12O3) are being developed for high temperature applications in advanced heat engines and high temperature heat recovery systems [1]. Although fracture toughness has been a constant problem, advanced ceramics are now being developed with fracture toughnesses close to those of metals [2]. Small size flaws (10–200 μm), small non-uniformities in density distributions (0.1–2%) present as long-range density gradients, and porous regions which can be seen as localized areas of slightly lower density, are critical in most ceramics. The need to detect these small flaws is causing a significant effort ...