Measurement of Elastic Moduli of a Fe-Si-B Amorphous Alloy Thin Film by EMAR and RUS
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531 (Japan)
- Precision and Intelligence Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503 (Japan)
All independent elastic moduli of an Fe-Si-B amorphous alloy thin film using electromagnetic acoustic resonance (EMAR) and resonant ultrasound spectroscopy coupled with laser-doppler interferometry (RUS/Laser) have been determined. Using a thickness resonance EMAR technique, in-plane shear moduli of c44 and c55 are determined to be 73.2 and 71.0 GPa indicating that the amorphous alloy thin film has a hexagonal-type elastic symmetry. The remaining moduli are obtained by RUS/Laser technique as follows: c11 = 193.6, c33 = 234.3, c23 = 72.1 and c12 = 79.8 GPa. Using the complete set of elastic moduli, the acoustic Debye temperature, {theta}D, is estimated to be 451 K which is close to that of pure {alpha}-Fe ({theta}D = 471 K). Compressional and shear anisotropies become c33/c11 = 1.21 and c66/c44 = 1.26 indicating remarkable elastic anisotropies between in-plane and out-of-plane directions even though in the amorphous structure.
- OSTI ID:
- 20655333
- Journal Information:
- AIP Conference Proceedings, Vol. 760, Issue 1; Conference: Conference on review of progress in quantitative nondestructive evaluation, Golden, CO (United States), 25-30 Jul 2004; Other Information: DOI: 10.1063/1.1916818; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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