Piezoelectric material and magnetoelectric composite

A technology of magnetoelectric composite materials and piezoelectric materials, applied in the selection of materials, piezoelectric/electrostrictive/magnetostrictive devices, circuits, etc., can solve problems such as low magnetoelectric effect, human body and environmental hazards, and achieve Strong magnetoelectric effect, strong resonance magnetoelectric effect, and the effect of increasing the magnetoelectric voltage coefficient
CN103113099BActive Publication Date: 2015-04-29常熟紫金知识产权服务有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
常熟紫金知识产权服务有限公司
Publication Date
2015-04-29

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Abstract

The invention discloses a piezoelectric material. The piezoelectric material is Cr-doped BaTiO3 piezoelectric ceramic, wherein mole ratio of Cr to Ba is (1.0-1.5):100. The invention also discloses a magnetoelectric composite. The magnetoelectric composite is prepared by polarizing the Cr-doped BaTiO3 piezoelectric ceramic material and then bonding the polarized Cr-doped BaTiO3 piezoelectric ceramic material with a magnetostriction material. The magnetoelectric composite prepared by the invention is an environment-friendly material absolutely harmless to the environment and has stronger magnetoelectric effect in high frequency environment.
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Description

technical field

[0001] The invention relates to a piezoelectric material and a magnetoelectric composite material, in particular to a chromium-doped barium titanate series piezoelectric material and an environment-friendly magnetoelectric composite material using the piezoelectric material. Background technique

[0002] The magnetoelectric effect is the dielectric polarization of the magnetoelectric composite material under the action of an external magnetic field, or the magnetization under the action of an external electric field. Magnetoelectric material can realize the conversion between magnetic field and electric field. It is an important functional material and has broad application prospects in high-performance magnetoelectric devices. Detection, broadband magnetic detection and other fields. Compared with traditional dielectric materials or magnetic materials, magnetoelectric composite materials have the advantages of high energy conversion efficiency, accurate...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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