CN101217179A - A piezoelectric ceramic fiber with metal cores - Google Patents
A piezoelectric ceramic fiber with metal cores Download PDFInfo
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- CN101217179A CN101217179A CNA2008100194590A CN200810019459A CN101217179A CN 101217179 A CN101217179 A CN 101217179A CN A2008100194590 A CNA2008100194590 A CN A2008100194590A CN 200810019459 A CN200810019459 A CN 200810019459A CN 101217179 A CN101217179 A CN 101217179A
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- metal
- cored
- piezoceramic material
- piezoelectric ceramic
- ceramic fibers
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- 239000000835 fiber Substances 0.000 title claims abstract description 69
- 239000000919 ceramic Substances 0.000 title claims abstract description 57
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 37
- 239000002184 metal Substances 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 121
- 239000007769 metal material Substances 0.000 claims abstract description 44
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 24
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 40
- 230000003647 oxidation Effects 0.000 claims description 38
- 238000007254 oxidation reaction Methods 0.000 claims description 38
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 20
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 20
- 229910052737 gold Inorganic materials 0.000 claims description 20
- 239000010931 gold Substances 0.000 claims description 20
- 229910052750 molybdenum Inorganic materials 0.000 claims description 20
- 239000011733 molybdenum Substances 0.000 claims description 20
- 229910052697 platinum Inorganic materials 0.000 claims description 20
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 20
- 229910052721 tungsten Inorganic materials 0.000 claims description 20
- 239000010937 tungsten Substances 0.000 claims description 20
- 230000005621 ferroelectricity Effects 0.000 abstract description 2
- 229910010293 ceramic material Inorganic materials 0.000 abstract 4
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 13
- 239000004744 fabric Substances 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001252 Pd alloy Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- SWELZOZIOHGSPA-UHFFFAOYSA-N palladium silver Chemical compound [Pd].[Ag] SWELZOZIOHGSPA-UHFFFAOYSA-N 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention relates to a piezoelectric ceramic fiber containing a metal core. The invention includes a metal core (1), a piezoelectric ceramic material (2) which coats the metal core (1) and a coating electrode (3) which is coated on the outer surface of the piezoelectric ceramic material (2); the value of the diameter (d) of the metal core (1) is more than or equal to 10 microns and is less than or equal to 200 microns; the metal core (1) is composed of metal materials which are high temperature resistant of 1000 DEG C to 3500 DEG C and are not easy to be oxidized; the piezoelectric ceramic material (2) is the piezoelectric ceramic material with a perovskite structure; the ceramic part and the metal core part of the piezoelectric ceramic fiber containing a metal core of the invention have good combination; wherein, the metal core can be used as an electrode, therefore, only the outer surface of the piezoelectric ceramic fiber needs to be plated with the electrode, and the single fiber can be used as a sensor or a driver; the invention has typical ferroelectricity and typical strain-electric field relation curve of the piezoelectric material, thus the invention can be taken as a driving element.
Description
One, technical field
The present invention relates to a kind of piezoelectric ceramic fibers, relate in particular to a kind of metal-cored piezoelectric ceramic fibers that contains.
Two, background technology
Intelligence structure adopts the mutually integrated version of function element and basal body structure mostly, and for the ease of mutually integrated with structural matrix, this geometry and size to the function element in the intelligence structure has proposed new requirement.Traditional piezoelectricity function element is in the majority with bulk and sheet, because volume is bigger, is difficult for basal body structure integrated, when imbedding basal body structure, very big to the intensity and the reliability effect of structure, also can change many performances of structure, even influence the use of structure, shorten the useful life of structure.The ideal geometry that is easy to integrated requirement that satisfies the intelligence structure proposition has thin plate and fiber.In addition, traditional piezoelectric exists significant disadvantage, because the fragility of pottery, piezoelectric ceramic can't bear big impact, can not be applied to crooked plane, has therefore limited the extensive use of piezoelectric ceramic.
At such geometry requirement, with in order to overcome the shortcoming of conventional piezoelectric pottery, eighties of last century middle nineteen nineties, U.S. MIT drives material and the structural experiment chamber has proposed fibrous piezoelectric (AFC:Active FiberComposite, fiber-shaped piezoelectric material) notion, and successfully made AFC.Since the proposition of this notion, caused the extensive concern of international academic community and engineering circle.The U.S., Germany and Japan and other countries be annual to drop into a large amount of funds extensive studies work has been carried out in aspects such as the preparation of piezoelectric fabric and application thereof, and has obtained many gratifying achievements in research.
U.S. MIT adopts the method for extrusion modling to prepare the piezoelectric fabric idiosome the earliest, through certain sintering process, successful preparation piezoelectric fabric.The AFC of preparation is horizontally arranged in the PZT fiber of cross section for circle in the epoxy polymer, is the driver of each diversity.Compare with traditional piezoelectric along the thickness direction polarization, AFC uses the finger-type crossed electrode to obtain driving force in the high face.In addition, PZT fiber and soft epoxy polymer can improve the ability of AFC renitency and damage, can also improve its adaptive capacity.In addition MIT also to AFC should be used as careful research, make AFC all obtain good application in a plurality of fields.Although AFC compares with traditional piezoelectric, improve a lot on the performance, also exist shortcoming.At first, the circular cross section of PZT fiber makes the contact area of PZT and electrode very little, has reduced the dynamo-electric transfer capability of AFC.Secondly, too high manufacturing cost has also limited the use of AFC.Have, AFC needs very high driving voltage again.
Pluses and minuses at AFC, the NASA of NASA to the preparation of piezoelectric fabric and application start deep research, they propose to adopt doctor-blade casting process to prepare piezoelectric membrane, through certain sintering process, adopt patterning method to prepare piezoelectric fabric then, and successfully made MFC (Macro Fiber Composite).MFC is to be cross section that the PZT fiber of rectangle is horizontally arranged in the epoxy polymer, and has used the finger-type crossed electrode.Different with AFC is that the rectangle PZT fiber among the MFC has improved the contact area of PZT and electrode, has improved its electromechanical conversion efficiency.In addition, the PZT fiber among the MFC is to cut out from traditional PZT crystal, has reduced its manufacturing cost.Because the pliability of MFC is higher, can be used for the vibration control and the shape control of aerospace structure efficiently.Germany adopts the core technology of U.S.'s piezoelectric fabric preparation, utilizes advanced instrument and equipment, successful preparation the piezoelectric fabric and the device thereof of multiple performance, and be sold to all over the world scientific research institutions and company thereof.This shows that piezoelectric fabric has vast market prospect and using value.
But because the fiber among AFC and the MFC can only be in polymer, integral body is used as a device, can not use separately; And only the part fiber in crossed electrode can be used as sensing and drives usefulness, and its efficient is subjected to very big influence.
Chinese invention patent application (application number: 200510075352.4) disclose a kind of metal-cored piezoelectric ceramic fibers that has, form with elongated linear structure by extrusion, diameter is between the 50-500 micron, its piezoelectric is barium titanate or lead zirconate titanate, and it is metal-cored to be silver palladium alloy, nickel, copper, aluminum fiber; This have a security monitoring that metal-cored piezoelectric ceramic fibers is applicable to the doughnut field.This have that metal-cored piezoelectric ceramic fibers obtains by extrusion or obtain by methods such as dipping on metal-cored, spraying plating or plasma depositions, combination between its metal-cored and piezoceramic material is not tight, causes the performance that contains metal-cored piezoelectric ceramic fibers to reduce or nonrepeatability occurs.
Three, summary of the invention
1, technical problem: the technical problem to be solved in the present invention provides a kind of metal-cored piezoelectric ceramic fibers that contains, and combines closely between its metal-cored and piezoceramic material.
2, technical scheme:
In order to solve above-mentioned technical problem, the invention provides following several technical scheme:
First kind of technical scheme contain metal-cored piezoelectric ceramic fibers, comprise the piezoceramic material of metal-cored, clad metal core and be coated on the coating electrode of piezoceramic material outer surface, metal-cored cross section is roughly rounded, also can be other shapes such as ellipse, rectangle, square; When cross section was rounded, the value of its diameter (d) was 10 microns≤d≤200 micron, described metal-coredly made by high temperature resistant 1000 ℃-3500 ℃ and the metal material that is difficult for oxidation; Piezoceramic material is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Zr
xTi
1-x) O
3, x=0.35-0.65 wherein;
Second kind of technical scheme contain metal-cored piezoelectric ceramic fibers, comprise the piezoceramic material of metal-cored, clad metal core and be coated on the coating electrode of piezoceramic material outer surface, metal-cored cross section is roughly rounded, also can be other shapes such as ellipse, square; When cross section was rounded, the value of metal-cored diameter (d) was 10 microns≤d≤200 micron, described metal-coredly made by high temperature resistant 1000 ℃-3500 ℃ and the metal material that is difficult for oxidation; Piezoceramic material is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Zn
1/3Nb
2/3)
x(Zr
yTi
1-y)
1-xO
3, x=0.1-0.5 wherein, y=0.35-0.65;
The third technical scheme of the present invention contain metal-cored piezoelectric ceramic fibers, comprise the piezoceramic material of metal-cored, clad metal core and be coated on the coating electrode of piezoceramic material outer surface, metal-cored cross section is roughly rounded, also can be other shapes such as ellipse, square; When cross section was rounded, the value of metal-cored diameter (d) was 10 microns≤d≤200 micron, described metal-coredly made by high temperature resistant 1000 ℃-3500 ℃ and the metal material that is difficult for oxidation; Piezoceramic material is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Ni
1/3Nb
2/3)
x(Zr
yTi
1-y)
1-xO
3, x=0.3-0.7 wherein, y=0.2-0.8;
The 4th kind of technical scheme of the present invention contain metal-cored piezoelectric ceramic fibers, comprise the piezoceramic material of metal-cored, clad metal core and be coated on the coating electrode of piezoceramic material outer surface, metal-cored cross section is roughly rounded, also can be other shapes such as ellipse, square; When cross section was rounded, the value of metal-cored diameter (d) was 10 microns≤d≤200 micron, described metal-coredly made by high temperature resistant 1000 ℃-3500 ℃ and the metal material that is difficult for oxidation; Piezoceramic material is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Mg
1/3Nb
2/3)
x(Zr
yTi
1-y)
1-xO
3, x=0.1-0.5 wherein, y=0.35-0.65;
More than in each technical scheme, metal-cored metal material is platinum or gold or molybdenum or tungsten.Fibre diameter is at 50 microns--and between 1000 microns, fiber cross section is roughly circle, also can be other shapes such as rectangle, ellipse, square.
3, beneficial effect:
The present invention proposes contains metal-cored piezoelectric ceramic fibers, and ceramic segment and metal-cored part associativity are fine, can clearly be seen that this point by the metallograph of accompanying drawing 2; The metal-cored electrode that can be used as wherein uses, and so only need plate electrode at the outer surface of piezoelectric ceramic fibers, and single fiber just can be used as transducer or driver; Containing metal core piezoelectric ceramic fibers of the present invention has typical ferroelectricity, and as shown in Figure 3, it has typical electric hysteresis loop; In addition, as shown in Figure 4, this containing metal core piezoelectric ceramic fibers also has the relation curve of the strain-electric field of exemplary piezoelectric materials, illustrates that this fiber also can be used as driving element.
Four, description of drawings
Fig. 1 is a containing metal core piezoelectric ceramic fibers structural representation;
Fig. 2 is that PNN-PZT (is Pb (Ni
1/3Nb
2/3)
x(Zr
yTi
1-y)
1-xO
3Write a Chinese character in simplified form) the micro-structure figure of metal-cored piezoelectric ceramic fibers;
Fig. 3 is the relation curve of PNN-PZT containing metal core piezoelectric ceramic fibers polarizability and electric field;
Fig. 4 is the strain of PNN-PZT containing metal core piezoelectric ceramic fibers and the relation curve of electric field.
Five, embodiment
Embodiment one:
As shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 10 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the platinum that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as gold or molybdenum or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Zr
0.35Ti
0.65) O
3
Embodiment two:
As shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 200 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the gold that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as platinum or molybdenum or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Zr
0.65Ti
0.35) O
3
Embodiment three:
As shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 100 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the molybdenum that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as platinum or gold or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Zr
0.5Ti
0.5) O
3
Embodiment four:
As shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 180 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the molybdenum that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as platinum or gold or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Zr
0.5Ti
0.5) O
3
Embodiment five:
As shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 10 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the platinum that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as gold or molybdenum or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Zn
1/3Nb
2/3)
0.1(Zr
0.35Ti
0.65)
0.9O
3The metal-cored piezoelectric ceramic fibers cross section of containing of present embodiment is circle, and diameter is 600 microns;
Embodiment six:
As shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 200 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the gold that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as platinum or molybdenum or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Zn
1/3Nb
2/3)
0.5(Zr
0.65Ti
0.35)
0.5O
3
Embodiment seven:
As shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 100 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the molybdenum that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as platinum or gold or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Zn
1/3Nb
2/3)
0.3(Zr
0.5Ti
0.5)
0.7O
3
Embodiment eight:
As shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 195 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the molybdenum that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as platinum or gold or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Zn
1/3Nb
2/3)
0.3(Zr
0.5Ti
0.5)
0.7O
3
Embodiment nine:
As shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 10 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the platinum that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as gold or molybdenum or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Ni
1/3Nb
2/3)
0.3(Zr
0.2Ti
0.8)
0.7O
3The metal-cored piezoelectric ceramic fibers cross section of containing of present embodiment is circle, and diameter is 50 microns;
Embodiment ten:
As shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 200 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the gold that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as platinum or molybdenum or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Ni
1/3Nb
2/3)
0.7(Zr
0.2Ti
0.8)
0.3O
3The metal-cored piezoelectric ceramic fibers cross section of containing of present embodiment is ellipse;
Embodiment 11:
As shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 100 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the molybdenum that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as platinum or gold or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Ni
1/3Nb
2/3)
0.4(Zr
0.6Ti
0.4)
0.6O
3
Embodiment 12:
As shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 10 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the platinum that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as gold or molybdenum or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Mg
1/3Nb
2/3)
0.1(Zr
0.35Ti
0.65)
0.9O
3
Embodiment 13: as shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 200 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the gold that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as platinum or molybdenum or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Mg
1/3Nb
2/3)
0.5(Zr
0.35Ti
0.65)
0.5O
3The metal-cored piezoelectric ceramic fibers cross section of containing of present embodiment is circle, and diameter is 1000 microns;
Embodiment 14:
As shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 100 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the molybdenum that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as platinum or gold or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Mg
1/3Nb
2/3)
0.4(Zr
0.4Ti
0.6)
0.6O
3
Embodiment 15:
As shown in Figure 1, present embodiment contain the coating electrode 3 that metal-cored piezoelectric ceramic fibers comprises the piezoceramic material 2 of metal-cored 1, clad metal core 1 and is coated on piezoceramic material 2 outer surfaces, metal-cored 1 cross section is rounded, its diameter is 40 microns, described metal-cored 1 is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material such as the molybdenum that are difficult for oxidation, also can be that other are high temperature resistant and be difficult for the metal material of oxidation such as platinum or gold or tungsten etc. and make; Piezoceramic material 2 is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Mg
1/3Nb
2/3)
0.4(Zr
0.4Ti
0.6)
0.6O
3
Claims (10)
1. one kind contains metal-cored piezoelectric ceramic fibers, comprise the piezoceramic material (2) of metal-cored (1), clad metal core (1) and be coated on the coating electrode (3) of piezoceramic material (2) outer surface, it is characterized in that, the value of metal-cored (1) diameter (d) is 10 microns≤d≤200 micron, and described metal-cored (1) is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material that is difficult for oxidation; Piezoceramic material (2) is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Zr
xTi
1-x) O
3, x=0.35-0.65 wherein.
2. as claimed in claim 1ly contain metal-cored piezoelectric ceramic fibers, it is characterized in that described metal material is platinum or gold or molybdenum or tungsten.
3. one kind contains metal-cored piezoelectric ceramic fibers, comprise the piezoceramic material (2) of metal-cored (1), clad metal core (1) and be coated on the coating electrode (3) of piezoceramic material (2) outer surface, it is characterized in that, the value of metal-cored (1) diameter (d) is 10 microns≤d≤200 micron, and described metal-cored (1) is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material that is difficult for oxidation; Piezoceramic material (2) is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Zn
1/3Nb
2/3)
x(Zr
yTi
1-y)
1-xO
3, x=0.1-0.5 wherein, y=0.35-0.65.
4. as claimed in claim 3ly contain metal-cored piezoelectric ceramic fibers, it is characterized in that described metal material is platinum or gold or molybdenum or tungsten.
5. one kind contains metal-cored piezoelectric ceramic fibers, comprise the piezoceramic material (2) of metal-cored (1), clad metal core (1) and be coated on the coating electrode (3) of piezoceramic material (2) outer surface, it is characterized in that, the value of metal-cored (1) diameter (d) is 10 microns≤d≤200 micron, and described metal-cored (1) is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material that is difficult for oxidation; Piezoceramic material (2) is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Ni
1/3Nb
2/3)
x(Zr
yTi
1-y)
1-xO
3, x=0.3-0.7 wherein, y=0.2-0.8.
6. as claimed in claim 5ly contain metal-cored piezoelectric ceramic fibers, it is characterized in that described metal material is platinum or gold or molybdenum or tungsten.
7. one kind contains metal-cored piezoelectric ceramic fibers, comprise the piezoceramic material (2) of metal-cored (1), clad metal core (1) and be coated on the coating electrode (3) of piezoceramic material (2) outer surface, it is characterized in that, the value of metal-cored (1) diameter (d) is 10 microns≤d≤200 micron, and described metal-cored (1) is made by high temperature resistant 1000 ℃-3500 ℃ and the metal material that is difficult for oxidation; Piezoceramic material (2) is the perovskite structure piezoceramic material, and described perovskite structure piezoceramic material molecular formula is Pb (Mg
1/3Nb
2/3)
x(Zr
yTi
1-y)
1-xO
3, x=0.1-0.5 wherein, y=0.35-0.65.
8. as claimed in claim 7ly contain metal-cored piezoelectric ceramic fibers, it is characterized in that described metal material is platinum or gold or molybdenum or tungsten.
9. describedly contain metal-cored piezoelectric ceramic fibers as claim 1,3,5 or 7, it is characterized in that fibre diameter is at 50 microns--between 1000 microns.
10. describedly contain metal-cored piezoelectric ceramic fibers as claim 1,3,5 or 7, it is characterized in that, the cross section is circular, oval, rectangle or square.
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| CNA2008100194590A CN101217179A (en) | 2008-01-09 | 2008-01-09 | A piezoelectric ceramic fiber with metal cores |
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|---|---|---|---|
| CNA2008100194590A CN101217179A (en) | 2008-01-09 | 2008-01-09 | A piezoelectric ceramic fiber with metal cores |
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| CN101217179A true CN101217179A (en) | 2008-07-09 |
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ID=39623566
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102097583A (en) * | 2010-11-29 | 2011-06-15 | 南京航空航天大学 | Method for packaging piezoelectric ceramic fiber containing metal core |
| CN102110772A (en) * | 2010-11-29 | 2011-06-29 | 南京航空航天大学 | Preparation method of piezoelectric ceramic fiber intelligent interlayer |
| CN101572504B (en) * | 2009-06-08 | 2012-06-06 | 南京航空航天大学 | Myoid piezoelectric fiber composite material driver |
| CN102900476A (en) * | 2012-09-21 | 2013-01-30 | 清华大学 | Low-leakage brush type sealing structure based on piezoelectric effect |
| CN103196467A (en) * | 2013-03-18 | 2013-07-10 | 南京航空航天大学 | Signal conditioning device used for piezoelectric fiber intelligent interlayer with metal core |
| CN104233579A (en) * | 2013-06-20 | 2014-12-24 | 扬州思必得仪器设备有限公司 | Cored piezoelectric fiber fabric |
| CN104790064A (en) * | 2015-04-10 | 2015-07-22 | 东华大学 | Piezoelectric polymer/metal composite nano-filament and preparation method thereof |
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| CN101572504B (en) * | 2009-06-08 | 2012-06-06 | 南京航空航天大学 | Myoid piezoelectric fiber composite material driver |
| CN102097583B (en) * | 2010-11-29 | 2013-08-21 | 南京航空航天大学 | Method for packaging piezoelectric ceramic fiber containing metal core |
| CN102110772A (en) * | 2010-11-29 | 2011-06-29 | 南京航空航天大学 | Preparation method of piezoelectric ceramic fiber intelligent interlayer |
| CN102097583A (en) * | 2010-11-29 | 2011-06-15 | 南京航空航天大学 | Method for packaging piezoelectric ceramic fiber containing metal core |
| CN102900476B (en) * | 2012-09-21 | 2014-11-26 | 清华大学 | Low-leakage brush type sealing structure based on piezoelectric effect |
| CN102900476A (en) * | 2012-09-21 | 2013-01-30 | 清华大学 | Low-leakage brush type sealing structure based on piezoelectric effect |
| CN103196467A (en) * | 2013-03-18 | 2013-07-10 | 南京航空航天大学 | Signal conditioning device used for piezoelectric fiber intelligent interlayer with metal core |
| CN104233579A (en) * | 2013-06-20 | 2014-12-24 | 扬州思必得仪器设备有限公司 | Cored piezoelectric fiber fabric |
| CN104790064A (en) * | 2015-04-10 | 2015-07-22 | 东华大学 | Piezoelectric polymer/metal composite nano-filament and preparation method thereof |
| CN107068851A (en) * | 2017-03-30 | 2017-08-18 | 武汉纺织大学 | A kind of pressure electricity-generating wire and preparation method thereof |
| CN107068851B (en) * | 2017-03-30 | 2019-01-25 | 武汉纺织大学 | A kind of pressure electricity-generating wire and preparation method thereof |
| CN107493036A (en) * | 2017-09-18 | 2017-12-19 | 南京理工大学 | A kind of wind-induced vibration energy recycle device based on metal core piezoelectric fabric |
| CN107493036B (en) * | 2017-09-18 | 2019-09-27 | 南京理工大学 | A kind of wind-induced vibration energy recycle device based on metal core piezoelectric fabric |
| CN112285162A (en) * | 2020-10-18 | 2021-01-29 | 西安交通大学 | Metal-based composite material self-perception characteristic detection system and method based on continuous carbon core piezoelectric fibers |
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