MANUFACTURE AND TESTING OF MAGNETOSTRICTIVE COMPOSITES |
|---|
| J. Kaleta, D. Lewandowski, R. Mech |
- Abstract:
- Among used in today's engineering materials, the more attention is attached to active materials, defined most often as SMART. Smart Magnetic Materials (SMM) play a big part in this numerous group of materials, from which chosen are an object of described hereafter investigations. One type of SMM are Giant Magnetostrictive Materials (GMM) which can be represented by i.e. Terfenol-D. The biggest difficulty with mechanical application of GMM is its brittleness, as well as appearing of eddy currents near frequencies of work and high price. These disadvantages tend scientists to search new solutions in a form of composite materials with giant magnetostriction (GMMc). The purpose of this paper was to manufacture magnetically polarized (anisotropic) magnetostrictive composites (GMMc) and to investigate their magnetomechanical properties. The materials were based on an epoxy resin matrix and Terfenol-D particles which were added with different volume fraction. A manufacturing procedure was developed to create specimens with magnetic field-oriented microstructure. GMMc with various volume fraction of Terfenol-D particles were subjected to quasi-static investigation of their properties with the use of a dedicated test stand. The results revealed that selected properties of magnetostrictive composites differ markedly depending on the value of used prestress and intensity of magnetic field.
- Keywords:
- magnetostricion, composites, GMM, SMART materials
- Download:
- IMEKO-YSESM-2012-26.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC15
- Event name:
- TC15 Youth Symposium 2012
- Title:
11th Youth Symposium on Experimental Solid Mechanics (TC15)
- Place:
- Brasov, ROMANIA
- Time:
- 30 May 2012 - 02 June 2012