Piezomagnetic and elastic properties of metallic glass alloys Fe67CO18B14Si1 and Fe81B13.5Si3.5C2
Abstract
The piezomagnetic and elastic properties of two metallic glass alloys Fe67Co18B14Si1 (Metglas 2605CO) and Fe81B13.5Si3.5C2 (Metglas 2605SC) are presented. The Metglas 2605CO and 2605SC alloys show optimum magnetomechanical coupling coefficient k33, change of Young’s modulus as a function of applied field ΔE/E, and piezomagnetic strain constant d33 values of 0.76, 0.79, 88×10−9 m/A and 0.90, 4.72, 400×10−9 m/A, respectively. The ΔE/E and d33 values of the 2605SC alloy are the largest ever reported. This alloy has a hydrophone figure-of-merit that far exceeds the corresponding value of a commonly used piezoelectric ceramic, PZT4. Both of these commercially available alloys should find considerable use in transduction devices such as sensors or variable acoustic delay lines.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 01, 1983
- Source ID
- 10.1063/1.331893
Entities
People
- J. Clifton Hill
- Steven W. Meeks
Organizations
- Duquesne University
- United States Naval Research Laboratory