Magnetocontrolled Elastic Composite Preparation and Characteristics

At the present time it is actually developed the scientific-practical direction to the materials formation, which properties are changed under the external influence. Such materials are available to react on the temperature, pressure, moisture, electric and magnetic fields changes and so on. All of these are related to the kind of the so called "smart materials". One of such materials is the magnetoelastic (ME), which are available to change the form, dimensions and the elastic properties under the external magnetic field influence [1,2], to them are connected and the polymeric magnetic gels [3-6].

On the basis of such materials can be made the magneto-elastic thin-wall sensors, which can be considered as the magnetic analogs of the surface acoustical sensors, changing their properties in the function of the different influences of the external environment parameters. For example, for the distance pressure measurement, temperature, viscosity of the liquid and so on [7,8].