CN105272219A - Thermosensitive ceramic resistance material and preparation method thereof - Google Patents
Thermosensitive ceramic resistance material and preparation method thereof Download PDFInfo
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- CN105272219A CN105272219A CN201510778184.9A CN201510778184A CN105272219A CN 105272219 A CN105272219 A CN 105272219A CN 201510778184 A CN201510778184 A CN 201510778184A CN 105272219 A CN105272219 A CN 105272219A
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Abstract
The invention provides a composite ceramic resistance material. The general chemical formula of the composite ceramic resistance material is (Al0.5Na0.5)xBa[1-x]TiO[3-y]GeO[2-z]As2O3, wherein X is 0.05-0.1, y is 0.01-0.1, and z is 0.001-0.005. The composite ceramic resistance material has a good microstructure and good high-temperature resistance performance and can be widely applied to the field of industrial and civil electronic equipment.
Description
Technical field
The present invention relates to a kind of composite ceramic resistor and preparation method thereof, belong to field of electronic devices.Ceramic resistor of the present invention is applicable to the multiple environment such as breaker closing resistance, high-voltage pulse circuit.
Background technology
Positive temperature coefficient (PTC) thermistor refers to the resistance element that resistivity increases with the rising of temperature, ptc material has the performance of many uniquenesses, as: electricity Zu – temperature profile, electricity Ya – current characteristics, electricity Liu – time response and voltage endurance etc., the electric heating physicals of these uniquenesses makes this material be widely used in industry and consumer electronic device field just.
For a long time, adulterate BaTiO
3pottery be always people the typical ptc material be familiar with, donor doping BaTiO
3pottery its resistance near 120 DEG C increases by 10
3~ 10
7doubly, significant ptc characteristics is demonstrated.But due to BaTiO
3curie temperature own is lower, and a lot of field requires that it has higher Curie temperature in actual applications, so the Curie temperature in order to improve this material, generally all can add a certain amount of Curie temperature in the material moves peak agent, but the additive of its Curie temperature effectively to the movement of high temperature direction can be made little.Constantly study through researcher, find to adopt appropriate Pb to replace the method for Ba, Curie temperature can be made to move to high temperature direction, but the harm of lead to environment and human body is very large, and along with the enhancing of people's environmental consciousness, the unleaded basic demand having become future electronic product, material and the product of preparing unleaded green acquire a special sense.
Summary of the invention
Technical scheme of the present invention is as follows:
A kind of composite ceramic resistor material, its chemical general formula is: (Al
0.5na
0.5)
xba
1-xtiO
3-yGeO
2-zAs
2o
3, wherein X is 0.05-0.1, y be 0.01-0.1, z is 0.001-0.005.Preferred described x is 0.06-0.08, y be 0.05-0.07, z is 0.002-0.003.
The preparation method of described resistive material, comprises the steps:
Take high-purity BaCO by a certain percentage
3and TiO
2powder, puts into powder after grinding 5-10h in ball mill and takes out, and puts into retort furnace and at 1050-1250 DEG C, sinter 2h form high-purity BaTiO at 100-150 DEG C after being dried by its mixture subsequently
3, then take out for subsequent use.Then proportionally GeO
2, Al
2o
3, NaOH and TiO
2powder takes out after putting into ball mill ball milling 24h, by its mixture 120 DEG C of oven dry, then puts in retort furnace and at 850 DEG C, sinters 2h to form high-purity Curie temperature migration agent powder.
Take the BaTiO prepared by a certain percentage
3with Curie temperature migration agent powder, powder is put into ball mill, and add the As of trace
2o
3, after mixed powder ball milling, drying, carry out with a certain amount of PVA caking agent mixing, granulation, and compression moulding under 150MPa, the sample after shaping is put into retort furnace, with the ramp of 150 ~ 300 DEG C/h, at 1100 ~ 1200 DEG C, sinter 50min, after furnace cooling, obtain resistor ceramic.Resistive performance subsequently in order to improve sample adds the CaCO of trace in the above conditions
3with Ni (NO
3)
2, preferred addition is As
2o
3add the 0.1-10 of mole number doubly, preferably 0.5-2 doubly.
The present invention is by introducing Curie temperature migration agent powder, the microcosmic particle diameter of ceramic powder is diminished, this may be because the existence of Al2O3 makes ceramic powder produce defect qualitative in the process of sintering, the existence of a large amount of barium vacancies makes the mass transfer process of particle surface be hindered, the growth of crystal grain just becomes slow, thus inhibits the size of microcrystal of product.
The present inventor also finds CaCO
3with Ni (NO
3)
2add the decomposition that effectively inhibit Curie temperature migration agent, control the amount of the foreign ion causing valence compensation, semiconductor transformation be achieved.But too much CaCO
3with Ni (NO
3)
2add membership to exist with the form of impurity, affect the performance of stupalith.
Embodiment
Be described in detail below in conjunction with the technical scheme of specific embodiment to invention.
Embodiment 1
Take high-purity BaCO by a certain percentage
3and TiO
2powder, puts into powder after grinding 10h in ball mill and takes out, and puts into retort furnace and at 1050 DEG C, sinter 2h form high-purity BaTiO at 110 DEG C after being dried by its mixture subsequently
3, then take out for subsequent use.Then proportionally GeO
2, Al
2o
3, NaOH and TiO
2powder takes out after putting into ball mill ball milling 24h, by its mixture 120 DEG C of oven dry, then puts in retort furnace and at 850 DEG C, sinters 2h to form high-purity Curie temperature migration agent powder.
Take the BaTiO prepared by a certain percentage
3with Curie temperature migration agent powder, powder is put into ball mill, and add the As of trace
2o
3, after mixed powder ball milling, drying, carry out with a certain amount of PVA caking agent mixing, granulation, and compression moulding under 150MPa, the sample after shaping is put into retort furnace, with the ramp of 150 DEG C/h, at 1150 DEG C, sinter 50min, after furnace cooling, obtain resistor ceramic.The general structure finally obtaining product is (Al
0.5na
0.5)
0.07ba
0.93tiO
3-0.05GeO
2-0.008As
2o
3.
Test for the product that embodiment 1 is obtained, following table is the resistive performance under differing temps
| Temperature | 0 | 50 | 100 | 150 | 200 | 250 |
| Resistance | 369 | 402 | 2310 | 3683 | 6894 | 12867 |
The present invention can summarize with other the specific form without prejudice to spirit of the present invention or principal character.All embodiments of the present invention all can only be thought explanation of the present invention instead of restriction, every any trickle amendment done by technology contents of the present invention or equivalently to replace, and all belong within technical scheme of the present invention.
Claims (4)
1. a composite ceramic resistor material, its chemical general formula is: (Al
0.5na
0.5)
xba
1-xtiO
3-yGeO
2-zAs
2o
3, wherein X is 0.05-0.1, y be 0.01-0.1, z is 0.001-0.005.
2. composite ceramic resistor material as claimed in claim 1, is characterized in that described x be 0.06-0.08, y be 0.05-0.07, z is 0.002-0.003.
3. ceramic resistor material as claimed in claim 1, is characterized in that can also adding CaCO in described composite ceramic resistor material
3with Ni (NO
3)
2, addition is As
2o
3doubly, preferably 0.5-2 doubly for the 0.1-10 of mole number consumption.
4. the preparation method of ceramic resistor material as claimed in claim 1, comprises the steps:
Take high-purity BaCO by a certain percentage
3and TiO
2powder, puts into powder after grinding 5-10h in ball mill and takes out, and puts into retort furnace and at 1050-1250 DEG C, sinter 2h form high-purity BaTiO at 100-150 DEG C after being dried by its mixture subsequently
3, then take out for subsequent use.Then proportionally GeO
2, Al
2o
3, NaOH and TiO
2powder takes out after putting into ball mill ball milling 24h, by its mixture 120 DEG C of oven dry, then puts in retort furnace and at 850 DEG C, sinters 2h to form high-purity Curie temperature migration agent powder; Take the BaTiO prepared by a certain percentage
3with Curie temperature migration agent powder, powder is put into ball mill, and add the As of trace
2o
3, after mixed powder ball milling, drying, carry out with a certain amount of PVA caking agent mixing, granulation, and compression moulding under 150MPa, the sample after shaping is put into retort furnace, with the ramp of 150 ~ 300 DEG C/h, at 1100 ~ 1200 DEG C, sinter 50min, after furnace cooling, obtain resistor ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778184.9A CN105272219A (en) | 2015-11-13 | 2015-11-13 | Thermosensitive ceramic resistance material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778184.9A CN105272219A (en) | 2015-11-13 | 2015-11-13 | Thermosensitive ceramic resistance material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105272219A true CN105272219A (en) | 2016-01-27 |
Family
ID=55142142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510778184.9A Pending CN105272219A (en) | 2015-11-13 | 2015-11-13 | Thermosensitive ceramic resistance material and preparation method thereof |
Country Status (1)
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|---|---|
| CN (1) | CN105272219A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113651612A (en) * | 2021-08-13 | 2021-11-16 | 湖州南木纳米科技有限公司 | Barium titanate PTC thermal sensitive ceramic material and application thereof in lithium battery |
| WO2024103887A1 (en) * | 2022-11-15 | 2024-05-23 | 欣旺达动力科技股份有限公司 | Electrode sheet, secondary battery, and electric device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219908A (en) * | 2007-09-21 | 2008-07-16 | 南京大学 | Multi-component metal oxide semiconductor mesoporous material and synthesizing method thereof |
-
2015
- 2015-11-13 CN CN201510778184.9A patent/CN105272219A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219908A (en) * | 2007-09-21 | 2008-07-16 | 南京大学 | Multi-component metal oxide semiconductor mesoporous material and synthesizing method thereof |
Non-Patent Citations (5)
| Title |
|---|
| HITESH BORKAR ET AL.: "Anomalous change in leakage and displacement currents after electrical poling on lead-free ferroelectric ceramics", 《APPLIED PHYSICS LETTERS》 * |
| 江向平等: "（Ba0.85Ca0.15）(Ti0.9Zr0.1-xSnx)O3陶瓷结构与性能研究", 《无机材料学报》 * |
| 沈振江等: "Al2O3不同掺杂方式对钛酸钡介电性能的影响", 《绝缘材料》 * |
| 蒋悦清等: "BaTiO3基无铅PTC热敏电阻材料的制备与研究", 《电子元件与材料》 * |
| 郑占申等: "Ni、Mn加入量及工艺对PTCR复合材料的性能影响", 《复合材料学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113651612A (en) * | 2021-08-13 | 2021-11-16 | 湖州南木纳米科技有限公司 | Barium titanate PTC thermal sensitive ceramic material and application thereof in lithium battery |
| WO2024103887A1 (en) * | 2022-11-15 | 2024-05-23 | 欣旺达动力科技股份有限公司 | Electrode sheet, secondary battery, and electric device |
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Application publication date: 20160127 |
|
| RJ01 | Rejection of invention patent application after publication |