CN85100705B - Low Qm lead titanate piezoelectric ceramic material - Google Patents
Low Qm lead titanate piezoelectric ceramic material Download PDFInfo
- Publication number
- CN85100705B CN85100705B CN85100705A CN85100705A CN85100705B CN 85100705 B CN85100705 B CN 85100705B CN 85100705 A CN85100705 A CN 85100705A CN 85100705 A CN85100705 A CN 85100705A CN 85100705 B CN85100705 B CN 85100705B
- Authority
- CN
- China
- Prior art keywords
- lead titanate
- low
- lead
- mol
- piezoelectric ceramic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910010293 ceramic material Inorganic materials 0.000 title abstract description 3
- 239000000463 material Substances 0.000 claims abstract description 20
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims abstract description 7
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 2
- FKTOIHSPIPYAPE-UHFFFAOYSA-N samarium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Sm+3].[Sm+3] FKTOIHSPIPYAPE-UHFFFAOYSA-N 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract 2
- 229910052451 lead zirconate titanate Inorganic materials 0.000 abstract 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 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000654 additive Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- 229910000484 niobium oxide Inorganic materials 0.000 description 2
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Compositions Of Oxide Ceramics (AREA)
Abstract
A low Qm lead titanate piezoelectric ceramic material is composed of Pb (1-x) Pb xTiO3 and added with 1.27 mol% rare earth metal oxide and 0.9 mol% manganese dioxide. Wherein 0.02 ≦ X ≦ 0.17; the material has the excellent characteristics of extremely low Qm value and Kt more than Kp; the method overcomes the defects of overlarge Qm value and close Kt and Kp values of the lead zirconate titanate ceramic, overcomes the defects of difficult sintering and high cost of the lead meta-niobate ceramic, and also overcomes the defect of overhigh Qm of the common lead titanate ceramic. It can be used in ultrasonic flaw detection.
Description
The invention belongs to a kind of lead titanate modification piezoceramic material.
Metal defect detection, rock mass flaw detection and medical ultrasonic all need wideband-short pulse ultrasound probe, require the mechanical quality factor of piezoelectric energy-conversion material more low better and manufacture this probe, require again the plane electromechanical coupling coefficient K of piezoelectric simultaneously
pas far as possible little, and required thickness electromechanical coupling coefficient K
tas far as possible large.Present K
t> > K
pcharacteristic.
Unappeasable for the general piezoceramic material of above-mentioned requirements.For example PZT-5A Q
m=75 K
p=0.60K
t=0.49, not only Q of such material
mbe worth too large, and K
pwith K
ttoo close again (seeing O.E.Mattiat, Ultrasonic Transducer Materials).
Although existing lead titanate piezoelectric ceramics has K
t> > K
pvaluable feature, but its mechanical quality factor is too large, general all in the scope of hundreds of to one thousand.Document " Effec-ts of additives on Piezoelectric and related Properties of PbTiO
3ceramics ".In introduce admixture gadolinium sesquioxide (Gd
2o
3) lead titanate ceramics Q
m=72K
33=0.028 K
p=0.044, and admixture niobium oxides (Nb
2o
5) lead titanate ceramics Q
m=70 K
33=0.16 K
p=0.06; Can obtain Q
m=70 lead titanate ceramics are valuable, but due to Q
m=70 still do not meet concerning ultrasonic inspection energy exchange probe, and K
33also be not far longer than K
p.Therefore the requirement that above-mentioned two kinds of lead titanate materials can not meet ultrasonic inspection (is shown in I.Ueda:Effects of additives on Piezoelectric and related Propert ies of PbTiO
3ceramics, Japan.J.appl.Phys.11.450 (1972)).
Lead meta-columbute P
6nb
2o
6piezoceramic material is Q in all materials
mminimum, Q
m=11 K
t=0.37 K
p=0.07, not only Q of this material
mlow, K simultaneously
t> > K
p, such material is the requirement that can meet ultrasonic inspection probe; But the manufacture of lead meta-columbute material is difficult, is difficult to obtain finished product, can not produce in batches, the raw material niobium oxides Nb that lead meta-columbute is used
2o
5expensive price, this is very disadvantageous to actual applying.
The object of this invention is to provide a kind of low Q
mmodified lead titanate piezoelectric ceramic.It not only has very low Q
mvalue, simultaneously its K
t> > K
p, this material is easy to manufacture, and low cost of manufacture less investment, closes in batch production, so the present invention has overcome the shortcoming of above-mentioned all materials, meets and become the excellence piezoelectric stupalith of manufacturing wideband-short pulse probe.
The present invention is made up of lead titanate, rare-earth oxide, Manganse Dioxide.Its formula is as follows:
Pb
(1-X)(Pb)
xtiO
3+ 1.27 mol % rare-earth oxide+0.9 mol % Manganse Dioxide.
Wherein the footnote of Pb is mole number.0.02≤X≤0.17, rare-earth oxide can be lanthanum trioxide or Samarium trioxide or cerium oxide.Additive molecular formula is respectively lanthanum trioxide---La
2o
3samarium trioxide---Sm
2o
3, cerium oxide---CeO
2manganse Dioxide---MnO
2.
Preferred example of the present invention:
Pb
(1-x)(Pb)
xtiO
3+ 1.27 mol % oxidations
la
2o
3+ 0.9 mol % Manganse Dioxide MnO
2
Wherein X=0.14.
The raw materials used chemical reagent that all adopts in the present invention's formula, by formula weighing, twice fine grinding before adopting vibromill to carry out pre-burning and after pre-burning, twice equal fine grinding five hours, in hopper, material is 1: 5 with the ratio of ball weight.Calcined temperature is 850 DEG C of insulations two hours.
Tackiness agent adopts the edible Gelatinum oxhide aqueous solution, and concentration is 5%, and consumption is 5% of powder weight.
φ 20mm disk is made in moulding, and forming pressure is 0.5 ton/centimetre
2be sure not to get rid of tackiness agent, after moulding, directly burn till, 1215 DEG C～1230 DEG C of firing temperatures, are incubated 1.5 hours.
Become 1mm thick the wafer grinding being fired into, top electrode polarizes in the silicone oil of 180 DEG C, takes staged step-up method, and the 1kV/mm that at every turn pressurizes keeps within 5 minutes, then continuing to boost at every turn, finally rises to 4kV/mm and keeps taking off after 15 minutes.
The ultrasound probe that adopts piezoceramic material of the present invention to make, is characterized in that bandwidth, pulse are narrow, and frequency characteristic is smooth, and its electric property is as follows: K
t=0.43, K
p=0.08, Q
m=10～15, the waveform of thickness vibration fundamental frequency is a smooth oscillation wave.
Claims (3)
1. a low Q
mthe piezoceramic material of value, taking lead titanate as base-material, adds rare-earth oxide and Manganse Dioxide, it is characterized in that it consists of Pb
(1-X)(Pb)
xtiO
3, wherein 0.02≤X≤0.17, and the Manganse Dioxide of the rare-earth oxide that contains 1.27 mol % and 0.9 mol %.
2. according to the said piezoceramic material of claim 1, it is characterized in that said rare-earth oxide is for oxidation
(La
2o
3), or Samarium trioxide (Sm
2o
3), or cerium oxide (CeO
2).
3. according to the said piezoceramic material of claim 1, it is characterized in that said composition Pb
(1-X)(Pb) XTiO
3in, taking X=0.14 as best.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85100705A CN85100705B (en) | 1985-04-01 | 1985-04-01 | Low Qm lead titanate piezoelectric ceramic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85100705A CN85100705B (en) | 1985-04-01 | 1985-04-01 | Low Qm lead titanate piezoelectric ceramic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85100705A CN85100705A (en) | 1986-08-06 |
| CN85100705B true CN85100705B (en) | 1986-08-06 |
Family
ID=4791376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85100705A Expired CN85100705B (en) | 1985-04-01 | 1985-04-01 | Low Qm lead titanate piezoelectric ceramic material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85100705B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588478A (en) * | 2013-11-15 | 2014-02-19 | 中船重工海声科技有限公司 | Lead titanate piezoelectric ceramics and preparation method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11343171A (en) * | 1998-05-29 | 1999-12-14 | Murata Mfg Co Ltd | Piezoelectric ceramic, its production and piezoelectric oscillator |
| CN108083798B (en) * | 2017-11-20 | 2021-10-26 | 骞越(南京)集成电路产业服务有限公司 | Lead-free piezoelectric ceramic composition and preparation method thereof |
| CN111747740B (en) * | 2020-06-28 | 2022-06-10 | 安徽容知日新科技股份有限公司 | Samarium ion doped lead zirconate titanate based high-performance piezoelectric ceramic and preparation method thereof |
| CN120649162B (en) * | 2025-08-14 | 2025-11-04 | 国网浙江省电力有限公司舟山供电公司 | Preparation method of samarium oxide doped lead niobate lead zirconate titanate piezoelectric fiber sensor |
-
1985
- 1985-04-01 CN CN85100705A patent/CN85100705B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588478A (en) * | 2013-11-15 | 2014-02-19 | 中船重工海声科技有限公司 | Lead titanate piezoelectric ceramics and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85100705A (en) | 1986-08-06 |
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