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Functionally graded piezoelectric material preparation method for improving anti-fracture performance

A technology of functionally gradient and piezoelectric materials, applied in chemical instruments and methods, lamination, lamination devices, etc., can solve problems such as poor fracture resistance, and achieve the effect of improving fracture performance and structural strength

Inactive Publication Date: 2016-10-12
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a method for preparing a functionally graded piezoelectric material capable of improving the fracture resistance, so as to solve the problem of poor fracture resistance of the functionally graded piezoelectric material

Method used

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  • Functionally graded piezoelectric material preparation method for improving anti-fracture performance
  • Functionally graded piezoelectric material preparation method for improving anti-fracture performance
  • Functionally graded piezoelectric material preparation method for improving anti-fracture performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Arranging the long glass fiber filaments in a horizontal and vertical warp and weft grid to form a grid sheet 1;

[0027] The fiber length of the long glass fiber filaments is 2 mm. Since the fiber filaments are not easy to maintain a single straight line during glass fiber production, and the fiber filaments are easy to break, so when making a horizontal and vertical latitude and longitude grid sheet, first clean the bottom surface of the glass plate 4 Lay the same horizontal long glass fiber filaments 101 flat, keep the distance between each long glass fiber filaments 0.5mm, spray glass glue on them with a sprayer, due to the circular cross-section of the glass fiber filaments, the sprayed glass glue will adhere On the upper arc surface of the fiber filaments, although the glass glue is sprayed onto the smooth glass plate in the gaps between the fiber filaments, the contact surface between the circular cross-section fiber filaments and the glass plate will not be gl...

Embodiment 2

[0035] 1. Arrange the long glass fiber filaments in horizontal and vertical latitude and longitude grids to form a grid sheet 1:

[0036] Take the fiber length 6mm of long glass fiber filaments,

[0037] Because the fiber filaments are not easy to keep a single straight line when the glass fiber is made, and the fiber filaments are easy to break, so when the horizontal and vertical warp and weft grid sheets are made, the same horizontal long glass fiber filaments 101 are first flattened on the bottom smooth glass plate plane 4. Lay the long glass fiber filaments at a distance of 1.0 mm, and spray glass glue on them with a sprayer. Due to the circular cross-section of the glass fiber filaments, the sprayed glass glue will adhere to the upper arc surface of the fiber filaments. Although there will be glass glue sprayed on the smooth glass plate in the gap between the fiber filaments, the contact surface between the circular cross-section fiber filament and the glass plate will n...

Embodiment 3

[0045] 1. Arrange the long glass fiber filaments in horizontal and vertical latitude and longitude grids to form a grid sheet 1:

[0046] Take the fiber length 10mm of long glass fiber filaments,

[0047] Because the fiber filaments are not easy to keep a single straight line when the glass fiber is made, and the fiber filaments are easy to break, so when the horizontal and vertical warp and weft grid sheets are made, the same horizontal long glass fiber filaments 101 are first flattened on the bottom smooth glass plate plane 4. Lay the long glass fiber filaments at a distance of 1.5 mm, and spray glass glue on them with a sprayer. Due to the circular cross-section of the glass fiber filaments, the sprayed glass glue will adhere to the upper arc surface of the fiber filaments. Although there will be glass glue sprayed on the smooth glass plate in the gap between the fiber filaments, the contact surface between the circular cross-section fiber filament and the glass plate will ...

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Abstract

The invention relates to a functionally graded piezoelectric material preparation method for improving anti-fracture performance and belongs to a preparation method of a functionally graded piezoelectric material. Long fiber glass filaments are woven and arranged through longitudinal and transverse warp-weft grids to form grid sheets, an adhesive is prepared, and the functionally graded piezoelectric material is prepared through hot pressing, a static high-pressure high-temperature large-cavity synthesis method is adopted, the temperature is 1000-3000 DEG C, the pressure is 30-60 Mpa, and the time is 20-40 minutes. The preparation method has the advantages that the functionally graded piezoelectric material having the anti-fracture performance can be produced in a scale mode, so that the functionally graded piezoelectric material has a good using value and a wide application field.

Description

technical field [0001] The invention belongs to a preparation method of a functional gradient piezoelectric material. Background technique [0002] Existing functionally graded piezoelectric materials need to adopt morphological structures with holes, openings, etc. that are prone to cracks and fractures due to actual needs during use. The materials are prone to fractures during long-term use, so that related products lose their due functions. . [0003] In order to obtain greater driving force, the piezoelectric elements currently used in engineering are mostly multi-layer structures, such as piezoelectric bimorphs, rainbows, and piezoelectric stacks. Although this structure has obtained a large driving force, the sudden change of some material components and properties in the component often leads to local stress mismatch in the structure, that is, there is an obvious stress difference at the interface between layers, and its The result is that the adhesive layer is easy...

Claims

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Application Information

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IPC IPC(8): B32B3/12B32B17/06B32B18/00B32B7/12B32B37/12B32B37/02B32B37/06B32B37/10C09J129/04C09J11/04C09J11/06
CPCB32B3/12B32B5/02B32B7/12B32B9/005B32B9/047B32B17/06B32B37/02B32B37/06B32B37/10B32B37/12B32B2262/101B32B2307/542C08K5/05C08K5/053C08K7/14C09J11/04C09J11/06C09J129/04
Inventor 周立明孟广伟孙晨凯李锋顾帅
Owner JILIN UNIV
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