X-ray computed tomography (XCT) is an important non-destructive evaluation technique for revealing the spatial distribution of ballistically-induced damage in ceramics. The level of detection and resolution of damage depends on the size of the specimen and the parameters of the XCT approach (e.g., focal spot size, magnification, etc.). Previous and ongoing work in assessment of ballistically induced damage in ceramic targets includes the study of both directly impacted and plane shock wave damaged specimens. Shock induced damage in both AD995 alumina and SiC-N ceramic targets have been scanned and extensively evaluated using XCT 2-D and 3-D analysis. The damage in the AD995 alumina and SiC-N targets was induced by 6 GPa and 4 GPa pressures, respectively. The purpose of using XCT evaluation in these targets is to better characterize and understand all of the detectable damage and possibly correlate damage features and types with the physical processes of damage initiation and growth. XCT scans of shock induced damage in ceramic targets will be shown and discussed. This will include virtual 3-D solid visualizations and some quantitative analysis of damage levels (i.e., decimal fraction of 100 percent) and particular damage features.


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