ELASTIC CONSTANTS OF SINGLE CRYSTALS OF THE bcc TRANSITION ELEMENTS V, Nb, AND Ta
Values of the elastic constants of single crystals of the bcc transition elements vanadium, niobium, and tantalum are reported at T = 27 deg C. They are, in units of 10/sup 11/ d/cm/sup 2/ for c/sub 11/, c/sub 12/, and c/sub 44/: V- 22.8, 11.9, 4.26; Nb- 24.6, 13. 2.87; and Ta-26.7, 16.1, 8.25, respectively. Comparisons are made of the values obtained for two crystals each of vanadium and tantalum. A high-frequency cw resonance technique was used in the measurements. The shear anisotropies A = 2c/sub 44//(c/sub 11/ - c/sub 12/) are anomalously small for these elements as compared to other cubic system elements. An analysis of the shear anisotropy, based on Fuchs' model, is given. It is found essential to consider next-nearest as well as nearest-neighbor ion-ion interactions. (auth)
- Research Organization:
- Westinghouse Research Labs., Pittsburgh
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-007803
- OSTI ID:
- 4110197
- Journal Information:
- Journal of Applied Physics (U.S.), Vol. Vol: 32; Other Information: Orig. Receipt Date: 31-DEC-61
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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