X-ray and mechanical elastic constants for cubic system by Kröner model

Crystal system: cubic, default values are stiffness for a-Fe taken from A.E. Lord，Jr and D.N. Beshers，J. Appl. Phys., 36，1620 (1965).
c11 c12 c44
h k l

This cgi system was made by K. Suzuki, Niigata University.
The other data
SUS316 (GPa): c11=206, c12=133, c44=119. Ref: H.M. Ledbetter, British J. NDT, 23, 286 (1981).
SUS304 (GPa): c11=209, c12=133, c44=121. Ref: H.M. Ledbetter, Physica, B+C, 128B，1 (1985).
Cu (GPa): c11=170, c12=122.5, c44=75.8. Ref: Y.A. Chang and L. Himmel, J. Appl. Phys., 356, 7 (1966).
Ni (GPa): c11=250.8, c12=150.0, c44=123.5. Ref: G.A. Alers, J.R. Neighbours and H. Sato, J. Phys. Chem. Solids, 13, 40-55 (1960).
Al (GPa): c11=106.78, c12=60.74, c44=28.21. Ref: G.N. Kamm and G.A. Alers，J. Appl. Phys., 35, 327 (1964).
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