CN1699280A - Niobate leadless piezoelectric material material and preparation method thereof - Google Patents
Niobate leadless piezoelectric material material and preparation method thereof Download PDFInfo
- Publication number
- CN1699280A CN1699280A CN 200510018833 CN200510018833A CN1699280A CN 1699280 A CN1699280 A CN 1699280A CN 200510018833 CN200510018833 CN 200510018833 CN 200510018833 A CN200510018833 A CN 200510018833A CN 1699280 A CN1699280 A CN 1699280A
- Authority
- CN
- China
- Prior art keywords
- purity
- powder
- burning
- ball milling
- volume ratio
- 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.)
- Granted
Links
Abstract
Disclosed is a niobate leadless piezoelectric material material and preparation method, wherein the major chemical composition of the material is (K0.44Na0.52Li0.04)(Nb0.84Ta0.10Sb0.06)O3, and is doped by 1-30 vol% of SrTiO3 powder. The preparation process comprises the steps of batching KHCO3, NaHCO3, Li2CO3, Nb205, Ta20, and Sb20 powder by chemical measurement ratio, charging anhydrous alcohol, mixing and ball milling 12-24h, drying at the temperature of 70-150 deg. C, charging adhesive into the dried material, press forming into block shape blanks, placing into high-alumina ceramic crucible for pre-calcination at 700-790 deg C, (4) disintegrating through ball grinding, doping SrTiO3 powder into the ball ground material, placing into a beaker, charging anhydrous alcohol and stirring 12-24h, drying at the temperature of 70-150 deg. C, pressing into sheets with phi12mm thickness 2mm by pressure of 4-6MPa, heat treating 1-5h at 1100-1250 deg C in air atmosphere through firing, thus obtaining leadless piezo-electric ceramics.
Description
Technical field
The present invention relates to a kind of columbate leadless piezoceramic material and preparation method thereof, be specifically related to a kind of with SrTiO
3Powder carries out the (K of doping vario-property
0.44Na
0.52Li
0.04) (Nb
0.84Ta
0.10Sb
0.06) O
3(KNNT) columbate leadless piezoceramic material and preparation method thereof.
Background technology
Piezoelectricity has widely in the detection of various information, dump, stores processor to be used, and uses very wide in many high and new technologies fields such as information, space flight, laser and biology; Yet up to now, exhausted most piezoelectric is still plumbiferous.Wherein plumbous oxide or tri-lead tetroxide account for starting material gross weight 70%, the production of these materials, use and the process of discarded aftertreatment in all can bring serious harm to human health and ecotope, the theory of this and human social is runed counter to, add because the global resources storage is limited, according to the estimation of internal authority department, the lead of estimating the whole world in 20 years is with approach exhaustion.Therefore, develop non-lead base environment compatibility piezoceramic material be one urgent and have a problem of great Practical significance.
ANbO
3(its A is Li, Na or K) type niobate is the important leadless piezoelectric material material system of a class, and it is the material that a class has perovskite-like structure.Compare with other lead-free ceramics system, this compounds has characteristics such as piezoelectric property is better, and specific inductivity is low, and frequency constant is big, and density is little, is one of material system that replaces the consideration of lead base piezoceramic material emphasis.But,, be difficult to realize densification sintering with ordinary method owing to Li, Na, K are easy to volatilization.
Summary of the invention
The purpose of this invention is to provide a kind of columbate leadless piezoceramic material, a kind of preparation method of this piezoceramic material is provided simultaneously.
The present invention adopts and introduce SrTiO in the niobate material
3Method, can prepare the high (K of density with traditional solid sintering technology
0.44Na
0.52Li
0.04) (Nb
0.84Ta
0.10Sb
0.06) O
3(KNNT) type columbate leadless piezoelectric ceramics; The piezoelectric property of the KNNT type columbate leadless piezoelectric ceramics of its preparation method preparation is also improved by a relatively large margin, is suitable for industrial production.
The present invention adopts the KHCO of commercial purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Be starting raw material, with commercial SrTiO
3Be the doping vario-property material, preparation meets the lead-free piezoceramic material of performance requriements.
Its technical scheme is:
A kind of columbate leadless piezoelectric materials, its main chemical constitution is (K
0.44Na
0.52Li
0.04) (Nb
0.84Ta
0.10Sb
0.06) O
3(KNNT), wherein mix the SrTiO of 1~30vol%
3Powder.
The preparation process of this columbate leadless piezoelectric materials is:
The first, elder generation is with the KHCO of purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder is by the stoichiometric ratio batching, add dehydrated alcohol as dispersion medium, the volume ratio of dehydrated alcohol and powder is 5~1: 1, and mixing and ball milling 12~24h is dried under 70~150 ℃ of temperature then, material after the oven dry adds concentration and makes cakingagent for the 2wt% polyvinyl alcohol water solution, carry out granulation, the volume ratio of its cakingagent and powder is 0.1~0.15: 1, is pressed into block base substrate then, place alumina porcelain crucible pre-burning 3~5h, calcined temperature is 700~790 ℃;
The second, the blank of gained after step 1 pre-burning is pulverized ball milling, the material after the ball milling mixes the SrTiO of 1~30vol%
3Powder, insert in the beaker then, add the dehydrated alcohol dispersion medium, the volume ratio of ethanol and powder is 5~1: 1, stir 12~24h, under 70~150 ℃ of temperature, dry again, material after the oven dry is that the 2wt% polyvinyl alcohol water solution is as cakingagent with concentration, forming under the pressure at 4~6MPa is the thick 2mm round billet of a diameter 12mm sheet, the volume ratio of its cakingagent and powder is 0.1~0.15: 1, base substrate buries burning thermal treatment under 1100~1250 ℃ of temperature in air atmosphere, thermal treatment insulation 1~5h promptly makes columbate leadless piezoelectric materials.
One-tenth porcelain base substrate burning infiltration silver electrode after its thermal treatment polarizes in 120 ℃ silicone oil then, uses d
33The piezoelectric constant survey meter is measured d
33
The present invention is by control KNNT and SrTiO
3SrTiO in volume ratio=1: 0.01~0.30
3Incorporation, obtained a kind of density height, novel columbate leadless piezoelectric materials that piezoelectric property is good by control moulding process and sintering schedule.
Description of drawings
Fig. 1 is different SrTiO
3The piezoelectric constant d of the KNNT pottery of incorporation
33Comparison diagram;
Fig. 2 is different SrTiO
3The relative density distribution plan of the KNNT ceramics sample of incorporation;
A among Fig. 3, b, c, d are KNNT: SrTiO
3Volume ratio be respectively: 1: 0,1: 0.07, the SEM figure of the KNNT pottery of 1: 0.2 and 1: 0.3;
As can be seen from Figure 1, KNNT: SrTiO
3Volume ratio be 1: 0.05 o'clock, the d of goods
33Value is best;
As can be seen from Figure 2, along with SrTiO
3The increase of incorporation, the density of goods increases, and works as KNNT: SrTiO
3Volume ratio be approximately at 1: 0.2 o'clock, it is best that the goods density reaches;
As can be seen from Figure 3, at KNNT: SrTiO
3Volume ratio be respectively: 1: 0,1: 0.07, in 1: 0.2 and 1: 0.3 four sample, work as KNNT: SrTiO
3Volume ratio be approximately at 1: 0.2 o'clock, it is best that the void content minimum of goods, density reach, with the rule basically identical of Fig. 2 reflection.
Embodiment
The embodiment of the invention is with KNNT and SrTiO
3Volume ratio is that 1: 0.01~0.30 ratio prepares leadless piezoelectric ceramics, and the method for employing is traditional solid sintering technology.
Concrete enforcement is as follows: elder generation is with the KHCO of purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder adds dehydrated alcohol as dispersion medium by the stoichiometric ratio batching, and the volume ratio of dehydrated alcohol and powder is 5~1: 1, and mixing and ball milling 12h is dried under 70~150 ℃ of temperature then; Material after the oven dry adds concentration and makes cakingagent for the 2wt% polyvinyl alcohol water solution, carries out granulation, and the volume ratio of its cakingagent and powder is 0.1~0.15: 1, is pressed into sheet then, places alumina porcelain crucible pre-burning 3~5h, and calcined temperature is 700~790 ℃; Carry out the crushing ball mill after pre-burning is finished, the material after the ball milling mixes 1~30vol%SrTiO
3Powder, insert in the wide-mouth beaker, magnetic agitation 12~24h, dispersion agent is a dehydrated alcohol, the volume ratio of dehydrated alcohol and powder is 5~1: 1, under 70~150 ℃ of temperature, dry then, material after the oven dry is that the 2wt% polyvinyl alcohol water solution is as cakingagent with concentration, forming under the pressure at 4~6MPa is the thick 2mm round billet of a diameter phi 12mm sheet, the volume ratio of its cakingagent and powder is 0.1~0.15: 1, base substrate buries burning thermal treatment under 1100~1250 ℃ of temperature in air atmosphere, the thermal treatment soaking time is 1~5h.One-tenth porcelain base substrate burning infiltration silver electrode after the thermal treatment polarizes in 120 ℃ silicone oil then.Use d
33The piezoelectric constant survey meter is measured d
33
The prescription and the following embodiment of condition of preparation KNNT based leadless piezoelectric ceramics.
Embodiment 1
Press KNNT and SrTiO
3Volume ratio is that 1: 0.01 ratio prepares leadless piezoelectric ceramics, adopts traditional solid sintering technology.KHCO with purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder is by after the stoichiometric ratio batching, mixing and ball milling, and at 700 ℃ of pre-burning 3h, the material after the pre-burning is pulverized ball milling, is the thick 2mm round billet of diameter phi 12mm sheet at the forming under the pressure of 4MPa, and in 1130 ℃ of sintering temperatures of air atmosphere, sintering time is 3h.
Embodiment 2
Press KNNT and SrTiO
3Volume ratio is that 1: 0.03 ratio prepares leadless piezoelectric ceramics, adopts traditional solid sintering technology.The KHCO of purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder is by after the stoichiometric ratio batching, mixing and ball milling, and at 700 ℃ of pre-burning 5h, the material after the pre-burning is pulverized ball milling, is the thick 2mm round billet of diameter phi 12mm sheet at the forming under the pressure of 5MPa, and in 1170 ℃ of sintering temperatures of air atmosphere, sintering time is 3h.
Embodiment 3
Press KNNT and SrTiO
3Volume ratio is that 1: 0.05 ratio prepares leadless piezoelectric ceramics, adopts traditional solid sintering technology.The KHCO of purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder is by after the stoichiometric ratio batching, mixing and ball milling, and at 750 ℃ of pre-burning 3h, the material after the pre-burning is pulverized ball milling, is the thick 2mm round billet of diameter phi 12mm sheet at the forming under the pressure of 4MPa, and in 1185 ℃ of sintering temperatures of air atmosphere, sintering time is 2h.
Embodiment 4
Press KNNT and SrTiO
3Volume ratio is that 1: 0.07 ratio prepares leadless piezoelectric ceramics, adopts traditional solid sintering technology.The KHCO of purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder is by after the stoichiometric ratio batching, mixing and ball milling, and at 780 ℃ of pre-burning 5h, the material after the pre-burning is pulverized ball milling, is the thick 2mm round billet of diameter phi 12mm sheet at the forming under the pressure of 4MPa, and in 1170 ℃ of sintering temperatures of air atmosphere, sintering time is 5h.B among the SEM of product sample such as Fig. 3.
Embodiment 5
Press KNNT and SrTiO
3Volume ratio is that 1: 0.10 ratio prepares leadless piezoelectric ceramics, adopts traditional solid sintering technology.The KHCO of purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder is by after the stoichiometric ratio batching, mixing and ball milling, and at 770 ℃ of pre-burning 4h, the material after the pre-burning is pulverized ball milling, is the thick 2mm round billet of diameter phi 12mm sheet at the forming under the pressure of 4MPa, and in 1180 ℃ of sintering temperatures of air atmosphere, sintering time is 1h.
Embodiment 6
Press KNNT and SrTiO
3Volume ratio is that 1: 0.15 ratio prepares leadless piezoelectric ceramics, adopts traditional solid sintering technology.The KHCO of purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder is by after the stoichiometric ratio batching, mixing and ball milling, and at 790 ℃ of pre-burning 4h, the material after the pre-burning is pulverized ball milling, is the thick 2mm round billet of diameter phi 12mm sheet at the forming under the pressure of 4MPa, and in 1185 ℃ of sintering temperatures of air atmosphere, sintering time is 3h.
Embodiment 7
Press KNNT and SrTiO
3Volume ratio is that 1: 0.20 ratio prepares leadless piezoelectric ceramics, adopts traditional solid sintering technology.The KHCO of purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder is by after the stoichiometric ratio batching, mixing and ball milling, and at 760 ℃ of pre-burning 3.5h, the material after the pre-burning is pulverized ball milling, is the thick 2mm round billet of diameter phi 12mm sheet at the forming under the pressure of 4MPa, and in 1175 ℃ of sintering temperatures of air atmosphere, sintering time is 3h.The SEM of product sample is as c. in 3
Embodiment 8,
Press KNNT and SrTiO
3Volume ratio is that 1: 0.30 ratio prepares leadless piezoelectric ceramics, adopts traditional solid sintering technology.The KHCO of purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder is by after the stoichiometric ratio batching, mixing and ball milling, and at 780 ℃ of pre-burning 4.5h, the material after the pre-burning is pulverized ball milling, is the thick 2mm round billet of diameter phi 12mm sheet at the forming under the pressure of 4MPa, and in 1200 ℃ of sintering temperatures of air atmosphere, sintering time is 3.5h.The SEM of product sample is as d in 3.
Embodiment 9,
Press KNNT and SrTiO
3Volume ratio is that 1: 0.30 ratio prepares leadless piezoelectric ceramics, adopts traditional solid sintering technology.The KHCO of purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder is by after the stoichiometric ratio batching, mixing and ball milling, and at 780 ℃ of pre-burning 4h, the material after the pre-burning is pulverized ball milling, is the thick 2mm round billet of diameter phi 12mm sheet at the forming under the pressure of 4MPa, and in 1200 ℃ of sintering temperatures of air atmosphere, sintering time is 4h.
Embodiment 10,
Press KNNT and SrTiO
3Volume ratio is that 1: 0.20 ratio prepares leadless piezoelectric ceramics, adopts traditional solid sintering technology.The KHCO of purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder is by after the stoichiometric ratio batching, mixing and ball milling, and at 790 ℃ of pre-burning 3h, the material after the pre-burning is pulverized ball milling, is the thick 2mm round billet of diameter phi 12mm sheet at the forming under the pressure of 4MPa, and in 1185 ℃ of sintering temperatures of air atmosphere, sintering time is 5h.
Embodiment 11,
Press KNNT and SrTiO
3Volume ratio is that 1: 0.15 ratio prepares leadless piezoelectric ceramics, adopts traditional solid sintering technology.The KHCO of purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder is by after the stoichiometric ratio batching, mixing and ball milling, and at 770 ℃ of pre-burning 4h, the material after the pre-burning is pulverized ball milling, is the thick 2mm round billet of diameter phi 12mm sheet at the forming under the pressure of 4MPa, and in 1185 ℃ of sintering temperatures of air atmosphere, sintering time is 3.5h.
Embodiment 12,
Press KNNT and SrTiO
3Volume ratio is that 1: 0.33 ratio prepares leadless piezoelectric ceramics, adopts traditional solid sintering technology.The KHCO of purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder is by after the stoichiometric ratio batching, mixing and ball milling, and at 700 ℃ of pre-burning 4.5h, the material after the pre-burning is pulverized ball milling, is the thick 2mm round billet of diameter phi 12mm sheet at the forming under the pressure of 4MPa, and in 1175 ℃ of sintering temperatures of air atmosphere, sintering time is 4h.
Claims (2)
1, a kind of columbate leadless piezoceramic material is characterized in that the main chemical constitution of this stupalith is (K
0.44Na
0.52Li
0.04) (Nb
0.84Ta
0.10Sb
0.06) O
3, wherein mix the SrTiO of 1~30vol%
3Powder.
2, the preparation method of the described columbate leadless piezoceramic material of claim 1 is characterized in that preparation process is:
The first, elder generation is with the KHCO of purity 99.5%
3, the NaHCO of purity 99.5%
3, the Li of purity 99.5%
2CO
3, the Nb of purity 99.5%
2O
5, the Ta of purity 99.0%
2O
5And the Sb of purity 99.0%
2O
5Powder is by the stoichiometric ratio batching, add dehydrated alcohol as dispersion medium, the volume ratio of dehydrated alcohol and powder is 5~1: 1, and mixing and ball milling 12~24h is dried under 70~150 ℃ of temperature then, material after the oven dry adds concentration and makes cakingagent for the 2wt% polyvinyl alcohol water solution, carry out granulation, the volume ratio of its cakingagent and powder is 0.1~0.15: 1, is pressed into block base substrate then, place alumina porcelain crucible pre-burning 3~5h, calcined temperature is 700~790 ℃;
The second, the blank of gained after step 1 pre-burning is pulverized ball milling, the material after the ball milling mixes the SrTiO of 1~30vol%
3Powder, insert in the beaker then, add the dehydrated alcohol dispersion medium, the volume ratio of dehydrated alcohol and powder is 5~1: 1, stir 12~24h, under 70~150 ℃ of temperature, dry again, material after the oven dry is cakingagent with concentration for the 2wt% polyvinyl alcohol water solution, forming under the pressure at 4~6MPa is the thick 2mm round billet of a diameter 12mm sheet, and the volume ratio of its cakingagent and powder is 0.1~0.15: 1, and base substrate buries burning thermal treatment under 1100~1250 ℃ of temperature in air atmosphere, thermal treatment insulation 1~5h promptly makes the columbate leadless piezoceramic material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200510018833 CN1286774C (en) | 2005-06-02 | 2005-06-02 | Niobate leadless piezoelectric material material and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200510018833 CN1286774C (en) | 2005-06-02 | 2005-06-02 | Niobate leadless piezoelectric material material and preparation method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1699280A true CN1699280A (en) | 2005-11-23 |
CN1286774C CN1286774C (en) | 2006-11-29 |
Family
ID=35475563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200510018833 Expired - Fee Related CN1286774C (en) | 2005-06-02 | 2005-06-02 | Niobate leadless piezoelectric material material and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1286774C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100424037C (en) * | 2006-11-23 | 2008-10-08 | 陕西师范大学 | Tantalum substitutional sodium potassium niobate based piezoelectric ceramics without plumbum, and preparation method |
CN100518995C (en) * | 2005-12-28 | 2009-07-29 | 中国科学院长春应用化学研究所 | Composite crucible for preparing rare earth-magnesium intermediate alloy by molten salt electrolysis and preparation method thereof |
CN101885611A (en) * | 2010-07-29 | 2010-11-17 | 西安理工大学 | Method for preparing piezoelectric material for roads by spraying technology |
CN101484398B (en) * | 2006-05-05 | 2013-02-06 | 富士胶卷迪马蒂克斯股份有限公司 | Processing piezoelectric material |
-
2005
- 2005-06-02 CN CN 200510018833 patent/CN1286774C/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100518995C (en) * | 2005-12-28 | 2009-07-29 | 中国科学院长春应用化学研究所 | Composite crucible for preparing rare earth-magnesium intermediate alloy by molten salt electrolysis and preparation method thereof |
CN101484398B (en) * | 2006-05-05 | 2013-02-06 | 富士胶卷迪马蒂克斯股份有限公司 | Processing piezoelectric material |
CN100424037C (en) * | 2006-11-23 | 2008-10-08 | 陕西师范大学 | Tantalum substitutional sodium potassium niobate based piezoelectric ceramics without plumbum, and preparation method |
CN101885611A (en) * | 2010-07-29 | 2010-11-17 | 西安理工大学 | Method for preparing piezoelectric material for roads by spraying technology |
CN101885611B (en) * | 2010-07-29 | 2013-04-17 | 西安理工大学 | Method for preparing piezoelectric material for roads by spraying technology |
Also Published As
Publication number | Publication date |
---|---|
CN1286774C (en) | 2006-11-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101486570B (en) | Leadless piezoelectric structured thick film and preparation thereof | |
CN111302797B (en) | Potassium-sodium niobate-based leadless piezoelectric ceramic and preparation method thereof | |
CN102910902B (en) | BNT-BT-BKT-based perovskite system multielement lead-free piezoelectric ceramic and production method thereof | |
CN1275903C (en) | Textured columbate leadless piezoelectric materials and method for making same | |
CN102167585B (en) | Multielement-doped bismuth titanate group lead-free piezoceramic material and preparation method thereof | |
KR100790407B1 (en) | Composition of lead-free piezoelectric ceramics and method for manufacturing the same | |
CN101037338A (en) | Method for preparing ferrite bismuth lanthanum-titanate lead solid solution ceramic under strong magnetic field action | |
CN102910905A (en) | Low-temperature sintered zirconate-titanate barium calcium based leadless piezoelectric ceramic and preparation method thereof | |
CN101891474A (en) | Potassium-sodium niobate-sodium potassium bismuth titanate piezoelectric ceramics and preparation method thereof | |
CN1286774C (en) | Niobate leadless piezoelectric material material and preparation method thereof | |
CN101786880B (en) | Sodium potassium niobate-potassium lithium niobate piezoelectric ceramics and preparation method thereof | |
Xu et al. | Effect of sintering temperature on the phase structure and electrical properties of Al–N co-doped BaTiO 3 piezoceramics | |
CN102887706A (en) | Cerium stabilized cubic zirconia ceramic material and preparation method thereof | |
CN101337815A (en) | Leadless piezoelectric ceramics and method for preparing the same | |
CN101337814A (en) | Low temperature sintering lithium antimonite doped quinary system piezoelectric ceramics material and method for preparing same | |
CN111333413B (en) | Bismuth ferrite-lead titanate-barium titano-stannate ternary system high-temperature piezoelectric ceramic material and preparation method thereof | |
CN106588007B (en) | High-quality-factor lead-free piezoelectric ceramic | |
JP2003201172A (en) | Leadless piezoelectric porcelain composition and method of manufacturing the same | |
CN1935745A (en) | Method for inhibiting alkali metal volatilization during niobate base lead-free piezoelectric ceramic sintering process | |
JP2000272963A (en) | Piezoelectric ceramic composition | |
CN103539447B (en) | Low-temperature sintered piezoelectric ceramic material and preparation method thereof | |
CN106007706A (en) | High-performance sodium bismuth titanate-based leadless piezoelectric ceramic and preparation method thereof | |
CN113563073A (en) | High-stability lead-free piezoelectric ceramic and preparation method thereof | |
JP2011236091A (en) | Method for producing alkali niobate-based piezoelectric ceramics | |
KR20100026660A (en) | Piezoelectric material and method of manufacturing the same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061129 Termination date: 20120602 |