Abstract
Measurements have been made of the Young's, flexural, and torsional moduli of compositionally modulated Cu-Ni foils. The average composition of the foils was 50-at. % Ni and the wavelength of the modulation ranged from 8 to 80 Å. At a wavelength of 20 Å, the flexural modulus exhibited a maximum and had a value two times greater than that measured at shorter or longer wavelengths or that calculated from the bulk single-crystal elastic constants of a homogeneous alloy. The Young's and torsion moduli exhibited two maxima at 12 and 28 Å. These results are consistent with earlier measurements of the biaxial modulus using a bulge tester. It was also observed that at a wavelength of 20 Å there was a threefold increase in the breaking stress of the foils as compared with homogeneous bulk alloys.
Original language | English (US) |
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Pages (from-to) | 1076-1083 |
Number of pages | 8 |
Journal | Journal of Applied Physics |
Volume | 57 |
Issue number | 4 |
DOIs | |
State | Published - Dec 1 1985 |
ASJC Scopus subject areas
- Physics and Astronomy(all)