Sodium bismuth titanate-based lead-containing ferroelectric ceramic material with wide temperature stabilized electrostrictive strain, preparation method and applications thereof

A sodium bismuth titanate-based, electro-straining technology is applied in the field of electronic ceramic materials, which can solve the problems of electric field-induced polarization drop, limiting the strain performance of sodium bismuth titanate-based ferroelectric ceramics, and disruption, and achieves good repeatability. , easy to operate, the effect of great economic value
CN110357615AInactive Publication Date: 2019-10-22XI AN JIAOTONG UNIV
2 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2019-10-22
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a sodium bismuth titanate-based lead-containing ferroelectric ceramic material with wide temperature stabilized electrostrictive strain, a preparation method and applications thereof, and belongs to the technical field of electronic ceramic materials, wherein the chemical composition of the ceramic material is (1-x)Bi1 / 2Na1 / 2TiO3-xPbMg1 / 3Nb2 / 3O3, and x is 0.32-0.36. According to the present invention, the material system can be synthesized at a low temperature by using a solid phase reaction method to obtain electrostrictive strain with high density and wide temperaturestability; at a temperature of 30-120 DEG C, under the action of an electric field of 60 kV / cm, the maximum value of the low-hysteresis electrostrictive strain is 0.06-0.08%, and the change rate is less than 30%; the method has characteristics of simple components, simple process steps, easy operation and good repeatability; and the product can be used in high precision drivers with high temperature stability requirements, and has great economic value.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of electronic ceramic materials, and in particular relates to a bismuth sodium titanate-based lead-containing ferroelectric ceramic material with stable electric strain over a wide temperature range and a preparation method and application thereof. Background technique

[0002] In high-precision micro-area drivers, the electric strain with small hysteresis is often obtained by applying an electric field to the ferroelectric material. The strain accuracy can be controlled in tens to hundreds of nanometers, which is of great value in high-precision instruments. . However, conventional ferroelectric ceramics will produce a large hysteresis under the action of a large-signal driving electric field, and this hysteresis will have a great impact on the driver of ferroelectric ceramic materials. Therefore, how to minimize the influence of hysteresis on strain characteristics is a key point in the research of electr...

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
Login to View More