CN105016723A - Method for preparation of pure phase Na1/2Bi1/2TiO3 ceramic powder - Google Patents
Method for preparation of pure phase Na1/2Bi1/2TiO3 ceramic powder Download PDFInfo
- Publication number
- CN105016723A CN105016723A CN201510377643.2A CN201510377643A CN105016723A CN 105016723 A CN105016723 A CN 105016723A CN 201510377643 A CN201510377643 A CN 201510377643A CN 105016723 A CN105016723 A CN 105016723A
- Authority
- CN
- China
- Prior art keywords
- ceramic powder
- pure phase
- tio
- preparation
- mixture
- 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.)
- Pending
Links
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention provides a method for preparation of pure phase Na1/2Bi1/2TiO3 ceramic powder. The method includes: mixing Na2CO3, Bi2O3 and TiO2 evenly according to a mole ratio of 0.575:0.5:2 to obtain a mixture, then adding deionized water into the mixture, carrying out ball-milling, filtering and drying, then conducting heat preservation at 820-860DEG C, thus obtaining the pure phase Na1/2Bi1/2TiO3 ceramic powder. The method provided by the invention adopts solid phase synthesis of ceramic powder, and has the advantages of low cost, large output and simple preparation process, etc. With the characteristics of simple preparation process, simple operation and low cost, the method provides the foundation for large scale and low cost preparation of NBT ceramic powder.
Description
Technical field
What the present invention relates to is a kind of composite perofskite type ferroelectric material, is specifically related to one and prepares pure phase Na
1/2bi
1/2tiO
3the method of ceramic powder.
Background technology
NBT is a kind of composite perofskite type ferroelectrics, and pure phase NBT stupalith has excellent ferroelectric properties, and its remnant polarization is up to 38 μ C/cm
2, Curie temperature reaches 320 DEG C, is to be hopeful one of material replacing lead base ferroelectric ceramic material most, and it is had a wide range of applications in leadless piezoelectric ceramics, posistor and temperature-stable dielectric material field.
But; in the process of synthesis NBT ceramic powder; the oxide compound highly volatile of Na and Bi; and the volatilization degree of Na with Bi is different; the ceramic powder synthesized is caused to depart from normal chemical metering ratio; easy generation dephasign and intermediate product, thus have influence on the dielectric of NBT base pottery, piezoelectricity and ferroelectric properties.Piezoelectricity ferro stupalith major part that at present can be practical is all leaded, and this type of material is widely used due to its satisfactory stability, repeatability and higher Curie temperature.But lead-containing materials preparation, use and in waste procedures inevitably to the living environment of the mankind with healthyly bring serious harm, therefore unleaded is the developing direction of electron ceramic material.NBT stupalith is considered to be one of material being hopeful alternative lead base stupalith most, therefore prepares pure phase NBT ceramic powder by method that is simple, low cost and has important social effect and economic implications.
Summary of the invention
The object of this invention is to provide one and prepare pure phase Na
1/2bi
1/2tiO
3the method of ceramic powder, the ceramic powder that the method obtains is pure phase pottery, and.
For achieving the above object, the present invention adopts following technical scheme:
One prepares pure phase Na
1/2bi
1/2tiO
3the method of ceramic powder, according to mol ratio 0.575:0.5:2, by Na
2cO
3, Bi
2o
3, TiO
2mix, obtain mixture, in mixture, then add deionized water carry out ball milling, filter, dry, then at 820 ~ 860 DEG C, after insulation, obtain pure phase Na
1/2bi
1/2tiO
3ceramic powder.
The mass ratio of described mixture and deionized water is 1:0.8.
Described Ball-milling Time is 3 ~ 5h.
Described bake out temperature carries out at 75 ~ 85 DEG C.
The time of described insulation is 3 ~ 5h.
Compared with prior art, the beneficial effect that the present invention has: mol ratio, by solid phase method, is the Na of 0.575:0.5:2 by the present invention
2cO
3, Bi
2o
3and TiO
2mix mutually, the oxide compound overcome due to Na and Bi at high temperature easily volatilizees, and easily forms the problem of intermediate product, due to Na
2cO
3excessive, so volatile component Na in building-up process can be compensated
2cO
3, thus prepare pure phase NBT ceramic powder.The present invention, by being calcined at 820 ~ 860 DEG C by mixture, can reduce the volatilization of oxide compound in building-up process of Bi and Na as much as possible, make the powder obtained be pure phase.In the ceramic powder that the present invention obtains, Na, Bi and Ti are evenly distributed, and particle soilless sticking, fillibility are good and preparation cost is low, output large, and preparation technology of the present invention is simple, and easy control of reaction conditions, is easy to suitability for industrialized production.The NBT stupalith of the pure phase that the present invention obtains has excellent ferroelectric properties, has a wide range of applications in leadless piezoelectric ceramics, posistor and temperature-stable dielectric material field.
Further, in the present invention, the mass ratio of mixture and deionized water is 1:0.8, carries out ball milling, due to Bi
2o
3and Na
2cO
3mass difference comparatively large, the consumption controlling water can avoid the layering of Bi and Na, makes various feed distribution in the ceramic powder finally obtained even.
Accompanying drawing explanation
Fig. 1 is the XRD figure spectrum of the NBT ceramic powder that embodiment 1-3 obtains.
Fig. 2 is the EDS collection of illustrative plates of pure phase NBT ceramic powder obtained in embodiment 2.
Fig. 3 is Na, Bi and Ti element distribution plan in the sample to which in pure phase NBT ceramic powder obtained in embodiment 2, Fig. 3 (a) for Na, Fig. 3 (b) for Bi, Fig. 3 (c) they are Ti.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1
One prepares pure phase Na
1/2bi
1/2tiO
3the method of ceramic powder, according to mol ratio 0.575:0.5:2, by Na
2cO
3, Bi
2o
3, TiO
2mix, obtain mixture, in mixture, then add deionized water carry out ball milling 5h, filter, dry at 75 DEG C, then at 820 DEG C, be incubated 5h, obtain pure phase Na
1/2bi
1/2tiO
3ceramic powder.Wherein, the mass ratio of described mixture and deionized water is 1:0.8.
Embodiment 2
One prepares pure phase Na
1/2bi
1/2tiO
3the method of ceramic powder, according to mol ratio 0.575:0.5:2, by Na
2cO
3, Bi
2o
3, TiO
2mix, obtain mixture, in mixture, then add deionized water carry out ball milling 4h, filter, dry at 85 DEG C, then at 840 DEG C, be incubated 4h, obtain pure phase Na
1/2bi
1/2tiO
3ceramic powder.Wherein, the mass ratio of described mixture and deionized water is 1:0.8.
Embodiment 3
One prepares pure phase Na
1/2bi
1/2tiO
3the method of ceramic powder, according to mol ratio 0.575:0.5:2, by Na
2cO
3, Bi
2o
3, TiO
2mix, obtain mixture, in mixture, then add deionized water carry out ball milling 3h, filter, dry at 80 DEG C, then at 860 DEG C, be incubated 3h, obtain pure phase Na
1/2bi
1/2tiO
3ceramic powder.Wherein, the mass ratio of described mixture and deionized water is 1:0.8.
See Fig. 1, by the Na prepared in various embodiments of the present invention
1/2bi
1/2tiO
3ceramic powder Rigaku D/max2000PCX-x ray diffractometer x is analyzed, and finds that sample is pure phase NBT ceramic powder.Fig. 2 is the Na of preparation in the embodiment of the present invention 2
1/2bi
1/2tiO
3the EDS collection of illustrative plates of ceramic powder, finds that each element of made ceramic powder meets stoichiometric ratio, and the mass percentage of the mass percentage of Na to be the mass percentage of 25.12%, Bi be 25.18%, Ti is 49.70%.See Fig. 3, visible Na, Bi and Ti are evenly distributed in ceramic powder.
Claims (5)
1. prepare pure phase Na for one kind
1/2bi
1/2tiO
3the method of ceramic powder, is characterized in that, according to mol ratio 0.575:0.5:2, by Na
2cO
3, Bi
2o
3, TiO
2mix, obtain mixture, in mixture, then add deionized water carry out ball milling, filter, dry, then at 820 ~ 860 DEG C, after insulation, obtain pure phase Na
1/2bi
1/2tiO
3ceramic powder.
2. preparation pure phase Na according to claim 1
1/2bi
1/2tiO
3the method of ceramic powder, is characterized in that, the mass ratio of described mixture and deionized water is 1:0.8.
3. preparation pure phase Na according to claim 1
1/2bi
1/2tiO
3the method of ceramic powder, is characterized in that, described Ball-milling Time is 3 ~ 5h.
4. preparation pure phase Na according to claim 1
1/2bi
1/2tiO
3the method of ceramic powder, is characterized in that, described bake out temperature carries out at 75 ~ 85 DEG C.
5. preparation pure phase Na according to claim 1
1/2bi
1/2tiO
3the method of ceramic powder, is characterized in that, the time of described insulation is 3 ~ 5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510377643.2A CN105016723A (en) | 2015-07-01 | 2015-07-01 | Method for preparation of pure phase Na1/2Bi1/2TiO3 ceramic powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510377643.2A CN105016723A (en) | 2015-07-01 | 2015-07-01 | Method for preparation of pure phase Na1/2Bi1/2TiO3 ceramic powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105016723A true CN105016723A (en) | 2015-11-04 |
Family
ID=54407093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510377643.2A Pending CN105016723A (en) | 2015-07-01 | 2015-07-01 | Method for preparation of pure phase Na1/2Bi1/2TiO3 ceramic powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105016723A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906341A (en) * | 2016-04-13 | 2016-08-31 | 河北大学 | Preparation method of single-phase structured nanometer sodium bismuth titanate ceramic powder |
| CN109503153A (en) * | 2018-12-14 | 2019-03-22 | 陕西科技大学 | A kind of high energy-storage property media ceramic, preparation method and applications |
| CN113161547A (en) * | 2021-03-17 | 2021-07-23 | 山东宏匀纳米科技有限公司 | Ternary positive electrode material coated with PTC material, preparation method of ternary positive electrode material, lithium ion battery positive electrode material and lithium ion battery |
| CN114133239A (en) * | 2021-10-29 | 2022-03-04 | 湖北大学 | Lead-free pyroelectric ceramic material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224979A (en) * | 2008-01-18 | 2008-07-23 | 陕西科技大学 | Method for preparing high Curie point leadless PTC ceramic resistance material |
| CN103601491A (en) * | 2013-11-14 | 2014-02-26 | 天津大学 | Method for effectively improving Curie temperature of barium titanate-based dielectric material |
| CN103864418A (en) * | 2014-02-27 | 2014-06-18 | 天津大学 | Preparation method of ceramic capacitor dielectric with high dielectric constant and ultra-wide working temperature |
| CN104291809A (en) * | 2014-09-26 | 2015-01-21 | 天津大学 | Preparation method of ultrahigh-temperature multi-layer ceramic capacitor medium |
-
2015
- 2015-07-01 CN CN201510377643.2A patent/CN105016723A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224979A (en) * | 2008-01-18 | 2008-07-23 | 陕西科技大学 | Method for preparing high Curie point leadless PTC ceramic resistance material |
| CN103601491A (en) * | 2013-11-14 | 2014-02-26 | 天津大学 | Method for effectively improving Curie temperature of barium titanate-based dielectric material |
| CN103864418A (en) * | 2014-02-27 | 2014-06-18 | 天津大学 | Preparation method of ceramic capacitor dielectric with high dielectric constant and ultra-wide working temperature |
| CN104291809A (en) * | 2014-09-26 | 2015-01-21 | 天津大学 | Preparation method of ultrahigh-temperature multi-layer ceramic capacitor medium |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906341A (en) * | 2016-04-13 | 2016-08-31 | 河北大学 | Preparation method of single-phase structured nanometer sodium bismuth titanate ceramic powder |
| CN109503153A (en) * | 2018-12-14 | 2019-03-22 | 陕西科技大学 | A kind of high energy-storage property media ceramic, preparation method and applications |
| CN113161547A (en) * | 2021-03-17 | 2021-07-23 | 山东宏匀纳米科技有限公司 | Ternary positive electrode material coated with PTC material, preparation method of ternary positive electrode material, lithium ion battery positive electrode material and lithium ion battery |
| CN114133239A (en) * | 2021-10-29 | 2022-03-04 | 湖北大学 | Lead-free pyroelectric ceramic material and preparation method thereof |
| CN114133239B (en) * | 2021-10-29 | 2022-09-06 | 湖北大学 | Lead-free pyroelectric ceramic material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Guo et al. | Phase evolution, crystal structure, and microwave dielectric properties of water-insoluble (1–x) LaNbO4–x LaVO4 (0≤ x≤ 0.9) ceramics | |
| CN109650876B (en) | A-site high-entropy perovskite oxide and preparation method thereof | |
| CN103304235B (en) | A kind of production method of thin brilliant high strength PMN-PZT piezoceramic material | |
| CN102910902B (en) | BNT-BT-BKT-based perovskite system multielement lead-free piezoelectric ceramic and production method thereof | |
| CN105016723A (en) | Method for preparation of pure phase Na1/2Bi1/2TiO3 ceramic powder | |
| CN105272244A (en) | Potassium-sodium niobate based leadless piezoelectric ceramic and preparation method thereof | |
| CN102531578A (en) | BCT-BZT-BST (Barium calcium titanate-barium zirconate titanate-barium stannate titanate) ternary system lead-free piezoelectric ceramic | |
| CN105198417B (en) | A kind of preparation method of zirconic acid bismuth sodium lithium cerium dopping potassium-sodium niobate base ceramic material | |
| CN103553605B (en) | KNN-BF leadless piezoelectric ceramic and preparation method thereof | |
| CN104947193A (en) | Sheet template seed crystal for textured leadless piezoelectric ceramics, and preparation method thereof | |
| CN101423391B (en) | Novel potassium niobate sodium base leadless piezoelectric ceramics and preparation method thereof | |
| CN101885607A (en) | Barium zirconate titanate-potassium sodium niobate piezoelectric ceramics and preparation method thereof | |
| CN101891474A (en) | Potassium-sodium niobate-sodium potassium bismuth titanate piezoelectric ceramics and preparation method thereof | |
| CN102674832A (en) | Barium-titanate-base lead-free bismuth-containing relaxation ferroelectric ceramic material and preparation method thereof | |
| CN101747051A (en) | Low-temperature sintering method of CaCu3Ti4O12 ceramic material | |
| CN101786880B (en) | Sodium potassium niobate-potassium lithium niobate piezoelectric ceramics and preparation method thereof | |
| CN110128128B (en) | Bismuth ferrite-bismuth aluminate-bismuth zinc titanate high-temperature piezoelectric ceramic with zero temperature coefficient and high-temperature stability and preparation method thereof | |
| CN106518071B (en) | A kind of high-curie temperature, piezoceramic material of high-temperature stability and its preparation method and application | |
| Yamatoh et al. | Polymerizable complex synthesis of lead-free ferroelectric Na0. 5Bi0. 5TiO3 suppressing evaporation of sodium and bismuth | |
| CN105272215A (en) | Preparation method of barium strontium titanate ceramic | |
| CN104557035A (en) | Potassium-sodium niobate ceramic target material for sputtering and preparation method thereof | |
| CN106518058B (en) | A kind of unleaded compound ferroelectric ceramics being made of bismuth potassium titanate and zinc oxide and preparation | |
| CN103503185B (en) | Piezoelectric ceramic composition and method for producing same | |
| CN101891465A (en) | Barium-strontium stannate titanate lead-free piezoelectric ceramics with high piezoelectric constant | |
| CN108603276A (en) | Polycrystalline dielectric body thin film and capacity cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151104 |