Method for designing and preparing spherical shell layered magnetoelectric composite material structure

A magnetoelectric composite material and structural design technology, applied in the manufacture/processing of electromagnetic devices, manufacture/assembly of magnetostrictive devices, manufacture/assembly of piezoelectric/electrostrictive devices, etc., can solve the problem of inability to manufacture question
CN101330124AInactive Publication Date: 2008-12-24UNIV OF SCI & TECH BEIJING
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF SCI & TECH BEIJING
Publication Date
2008-12-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a spherical shell laminar magneto-electric composite material structure and a manufacturing method, and relates to the design and manufacture method of an isotropic magneto-electric effect laminar magneto-electric composite material structure. The method comprises the following steps: hemispherical shell piezoelectric ceramic is achieved through compression molding and sintering, after the high-temperature polarizing is performed, metallizing is performed by adopting the chemical plating method, two metallized piezoelectric ceramic hemispherical shells are bonded into a complete piezoelectric ceramic hemispherical shell through the strong glue, and then the shell is laid in the prepared electroplating solution to be electroplated till a magnetic layer with the required thickness is electroplated, thereby the spherical shell laminar magneto-electric composite material is achieved. Compared with the prior simple laminar composite material, such as a flat plate, because the dimensions of the structure in the three-dimensional direction are identical, the magneto-electric performances of the structure in all directions are identical, and by adopting the isotropic magneto-electric performance, the spherical shell laminar magneto-electric composite material can be applied to the magnetic field detection in the unknown directions.
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Description

technical field

[0001] The invention relates to the structure design and preparation method of spherical shell layered magnetoelectric composite material, in particular to the preparation of functional composite material with isotropic magnetoelectric effect of spherical shell structure by electroplating method. Background technique

[0002] Magnetoelectric composite material is a new material with magnetoelectric conversion function. It is composed of two single-phase materials, piezoelectric phase and piezoelectric phase, through certain methods. The magnetoelectric conversion function of the magnetoelectric composite material is realized by the product effect between the piezoelectric phase and the piezoelectric phase, and this product effect is the magnetoelectric effect. For a flat magnetoelectric composite material, during the test, if the polarization direction of the piezoelectric phase is the thickness direction (3 directions), when the external bias magnetic field ...

Claims

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