Testing advanced structural ceramics
- Tsinghua Univ., Beijing (China). Inst. of Nuclear Energy Technology
Nondestructive evaluation (NDE) methods are important both to guarantee the reliability of ceramic components and to optimize the fabrication process. Radiography is one of the most common NDE methods used. However, conventional radiography yields an overlapping shadow graph of an object, and all features of a 3D object are projected to a 2D image. Therefore, detectable defects -- especially cracks -- depend on their orientation. As an advanced form of radiography technology, X-ray computed tomography (CT) overcomes the disadvantages of common projection radiography and provides easily recognized cross-section images of the inspected object. Therefore, it accurately shows the spatial location and size of defects as well as the density of the regions of interest in a material. A fluorescopy-based CT experimental system was operational by 1990. A new, industrial computed tomography (ICT) system with discrete detectors for NDE of advanced structural ceramics is based on the preliminary ICT work.
- OSTI ID:
- 194210
- Journal Information:
- American Ceramic Society Bulletin, Journal Name: American Ceramic Society Bulletin Journal Issue: 1 Vol. 75; ISSN 0002-7812; ISSN ACSBA7
- Country of Publication:
- United States
- Language:
- English
Similar Records
Characterization of impact damage in metallic/nonmetallic composites using x-ray computed tomography imaging
Nondestructive evaluation and assay of nuclear waste drums with high energy transmission and emission computed tomography