CN105565805A - Composite ceramic material preparation method - Google Patents
Composite ceramic material preparation method Download PDFInfo
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- CN105565805A CN105565805A CN201510840003.0A CN201510840003A CN105565805A CN 105565805 A CN105565805 A CN 105565805A CN 201510840003 A CN201510840003 A CN 201510840003A CN 105565805 A CN105565805 A CN 105565805A
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- calcium titanate
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Abstract
The invention belongs to the field of chemical preparation and discloses a composite ceramic material preparation method. The method is characterized by including steps: mixing synthesized copper calcium titanate and calcium titanate, and performing ball milling and drying to obtain required ceramic powder; adding a binding agent, and subjecting the ceramic powder to dry pressing to obtain thin round blanks 12mm in diameter and 1.6mm in thickness approximately; putting the blanks in a muffle furnace, and sintering in air to obtain ceramic samples. By improvement of an original preparation process, the copper calcium titanate and the calcium titanate are adopted for synthesis, composite ceramic materials prepared according to the method have high dielectric coefficients and further have advantages of freeness of lead and low sintering temperature, and technical simplicity in preparation, easiness in operation and suitableness for popularization and application are realized.
Description
Technical field
The invention belongs to field of chemical preparation, particularly relate to a kind of preparation method of composite ceramic material.
Background technology
Along with the continuous progress of science and technology, various new material synthesis technology is widely used.Along with the miniaturization of ceramic condenser, the requirement for dielectric materials is more and more higher, needs it to have higher specific inductivity.In recent years had higher specific inductivity by the CaCu 3 Ti 4 O used, and have good temperature stability, but as dielectric materials, the dielectric loss of CaCu 3 Ti 4 O is too high, to technique is very responsive etc., shortcoming limits its practical application to dielectric constant values.
Summary of the invention
The present invention is intended to solve the problem, and provides a kind of preparation method of composite ceramic material.
The preparation method of a kind of composite ceramic material of the present invention, is characterized in that: carry out batch mixing with the CaCu 3 Ti 4 O synthesized and calcium titanate, after ball milling and drying, obtain required ceramic powder; Add binding agent, ceramic powder is dry-pressing formed, make the thin discs green compact that diameter is 12mm, thickness is about 1.6mm; Then green compact are placed in retort furnace, sintering obtains ceramics sample in atmosphere.
The preparation method of a kind of composite ceramic material of the present invention, is characterized in that: described caking agent is PVA.
The preparation method of a kind of composite ceramic material of the present invention, is characterized in that: described dry-pressing formed pressure is 25MPa.
The preparation method of a kind of composite ceramic material of the present invention, is characterized in that: the temperature of described sintering is 1000 DEG C; Sintering time is 5h.
The preparation method of a kind of composite ceramic material of the present invention, by the improvement to original preparation technology, CaCu 3 Ti 4 O and calcium titanate is adopted to synthesize, made composite ceramic material has higher dielectric coefficient, also have not leaded, that sintering temperature is low good characteristics concurrently simultaneously, and preparation technology is simple, easy handling, is suitable for applying.
Embodiment
The preparation method of a kind of composite ceramic material of the present invention, carries out batch mixing with the CaCu 3 Ti 4 O synthesized and calcium titanate, after ball milling and drying, obtains required ceramic powder; Add binding agent, ceramic powder is dry-pressing formed, make the thin discs green compact that diameter is 12mm, thickness is about 1.6mm; Then green compact are placed in retort furnace, sintering obtains ceramics sample in atmosphere.
The preparation method of a kind of composite ceramic material of the present invention, described caking agent is PVA.
The preparation method of a kind of composite ceramic material of the present invention, described dry-pressing formed pressure is 25MPa.
The preparation method of a kind of composite ceramic material of the present invention, the temperature of described sintering is 1000 DEG C; Sintering time is 5h.Pure calcium titanate ceramic dielectric loss is very large, and mainly cause because sintering is not fine and close, the pottery of other composition, with the increase of calcium titanate add-on, its loss diminishes, and is because the resistance that calcium titanate serves increases blocking layer causes.The composite ceramic material of preparation method's gained of composite ceramic material of the present invention specific inductivity is at room temperature adopted to be 1490.
Claims (4)
1. a preparation method for composite ceramic material, is characterized in that: carry out batch mixing with the CaCu 3 Ti 4 O synthesized and calcium titanate, after ball milling and drying, obtain required ceramic powder; Add binding agent, ceramic powder is dry-pressing formed, make the thin discs green compact that diameter is 12mm, thickness is about 1.6mm; Then green compact are placed in retort furnace, sintering obtains ceramics sample in atmosphere.
2. the preparation method of a kind of composite ceramic material according to claim 1, is characterized in that: described caking agent is PVA.
3. the preparation method of a kind of composite ceramic material according to claim 2, is characterized in that: described dry-pressing formed pressure is 25MPa.
4. the preparation method of a kind of composite ceramic material according to claim 3, is characterized in that: the temperature of described sintering is 1000 DEG C; Sintering time is 5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510840003.0A CN105565805A (en) | 2015-11-27 | 2015-11-27 | Composite ceramic material preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510840003.0A CN105565805A (en) | 2015-11-27 | 2015-11-27 | Composite ceramic material preparation method |
Publications (1)
| Publication Number | Publication Date |
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| CN105565805A true CN105565805A (en) | 2016-05-11 |
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| CN201510840003.0A Pending CN105565805A (en) | 2015-11-27 | 2015-11-27 | Composite ceramic material preparation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107129282A (en) * | 2017-05-09 | 2017-09-05 | 佛山市蓝瑞欧特信息服务有限公司 | A kind of ceramic material and preparation method thereof |
| CN107686348A (en) * | 2017-09-01 | 2018-02-13 | 安徽省德邦瓷业有限公司 | A kind of preparation method of corrosion-resistant heat preserving ceramic material |
| CN107759216A (en) * | 2017-11-03 | 2018-03-06 | 太原理工大学 | A kind of method that sol-gal process prepares strontium lanthanum manganese oxide/CaCu 3 Ti 4 O compound magnetoelectric ceramic material |
-
2015
- 2015-11-27 CN CN201510840003.0A patent/CN105565805A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107129282A (en) * | 2017-05-09 | 2017-09-05 | 佛山市蓝瑞欧特信息服务有限公司 | A kind of ceramic material and preparation method thereof |
| CN107686348A (en) * | 2017-09-01 | 2018-02-13 | 安徽省德邦瓷业有限公司 | A kind of preparation method of corrosion-resistant heat preserving ceramic material |
| CN107759216A (en) * | 2017-11-03 | 2018-03-06 | 太原理工大学 | A kind of method that sol-gal process prepares strontium lanthanum manganese oxide/CaCu 3 Ti 4 O compound magnetoelectric ceramic material |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160511 |