Abstract
Considering two-phase materials, we focus on the relationship between microstructure and physical properties, especially elastic constants. Microstructure includes occlusion concentration, orientation, shape, size, and distribution. Isotropic materials possess two independent elastic constants; orthotropic materials, nine; we emphasize the need to determine the complete elastic-constant tensor. We review principally three measurement methods: pulse-echo, rod-resonance, and acoustic-resonance spectroscopy. We show results for SiC/sub p//Al, mullite/sub p//Al, graphite/sub p//ferrite (cast iron), voids/Ti, B/sub f//Al, graphite/sub f//Al, SiC/sub sf//Al, epoxy/Al laminate. For some cases, we show the elastic constant's imaginary part: attenuation or internal friction. We emphasize combining measurements with modeling.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.