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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

Inactive Publication Date: 2008-12-24
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

The applicant has obtained a cylindrical layered magnetoelectric composite material by means of electroplating, which cannot be produced by traditional preparation methods

Method used

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

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Embodiment Construction

[0018] Now refer to the attached Figure 8 , are described as follows in conjunction with the examples: the spherical shell layered magnetoelectric composite structure design and preparation method relate to piezoelectric ceramics (such as PZT) powder molding and sintering into hemispherical shell piezoelectric ceramics (such as Figure 7shown), the metallization of hemispherical shell piezoelectric ceramics, the bonding of hemispherical shell piezoelectric ceramics into complete spherical shell piezoelectric ceramics and the electroplating preparation method of complete spherical shell layered magnetoelectric composite materials. The following is an example of PZT piezoelectric ceramics. First, the prepared PZT powder is molded into a hemispherical shell-shaped blank of the corresponding size using a designed abrasive tool, and the corresponding PZT sintering process is sintered to obtain a hemispherical shell-shaped PZT ceramic; the inner and outer surfaces of the spherical ...

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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.

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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Application Information

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IPC IPC(8): H01L41/00H01L41/22H01L43/00H01L43/14C25D5/54C25D7/04H01L41/47
Inventor 潘德安张深根田建军乔利杰
Owner UNIV OF SCI & TECH BEIJING
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