Affiliations: Department of Child Dental Health, The London Hospital Medical College, Turner Street, London El 2AD, United Kingdom | Department of Biophysics, King's College, 26–29 Drury Lane, London WC2B 5RL, United Kingdom | School of Materials Engineering and Mechanical Properties Research Laboratory, Georgia Institute of Technology, Atlanta, Georgia 30332-0245
Abstract: The advantages of the use of x-ray microtomography in materials science are discussed, and illustrated by the nondestructive study of the mechanical damage in a continuous fiber SiC/Al composite at a resolution of about 25 μm. A laboratory x-ray source was used, and it was shown that quantitative measurements of the linear absorption coefficient at this resolution are possible, even though the AgKα radiation used is accompanied by a considerable amount of white radiation, provided that the counter system is properly corrected for pulse pile up and dead-time.
