Abstract
The specimen consisted of a 1‐cm‐diam monocrystal silicon sphere. Voigt elastic stiffnesses C11, C12, C44 were determined from the macroscopic eigenvibration frequencies. The Cij results agree closely with previous measurements by conventional acoustic methods. The internal frictions Q−1 were determined for two nondegenerate eigenfrequencies. One depends only on the shear modulus C44. The other, composed of 0.64C11+0.32 C12+0.04 C44, is nearly independent of C44. Granato–Lucke plots of ln e Q−1 vs ln e−1 showed two regions. The higher strain region showed a slope of approximately 3.5 times that of the lower strain region. A dislocation‐model explanation will be offered for higher Q−1 at higher e.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
