CN1377854A - Process for synthesizing rare-earth ceramic material - Google Patents
Process for synthesizing rare-earth ceramic material Download PDFInfo
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- CN1377854A CN1377854A CN 01112512 CN01112512A CN1377854A CN 1377854 A CN1377854 A CN 1377854A CN 01112512 CN01112512 CN 01112512 CN 01112512 A CN01112512 A CN 01112512A CN 1377854 A CN1377854 A CN 1377854A
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- ceramic
- ceramic material
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- rare
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- Compositions Of Oxide Ceramics (AREA)
Abstract
The present invention provides a process of synthesizing RE ceramic material. Re generatant is diffused to the surface interface or even to the bulk phase. The method is favorable to the interaction between RE and other ceramic components and can improve obviously the comprehensive performance, including piezoelectric performance, electromechanical coupling performance, high temperature antioxidant performance, strength, toughness, etc. The present invention has wide application foreground in functional ceramic and engineering ceramic fields.
Description
The present invention proposes a kind of processing method that is used for synthesizing rare-earth ceramic material, specifically a kind of processing method that is used for synthesizing rare-earth function ceramics and engineering ceramic material, stupalith comes into one's own day by day in science that develops rapidly and application project field, be penetrated into each stratosphere again, and the trend of continuous expansion is arranged.For example, all need the stupalith that application performance is good, manufacturing is easy in the fields such as space technology, ocean exploitation, electronic technology, automatic control, and its requirement is increased day by day, also more and more higher to the requirement of its quality.Rare earth element is playing an important role it owing to have special electronic configuration and outstanding chemically reactive thereof aspect the stupalith study on the modification.For example at PbTio
3In the ceramic based material, doping La
2O
3, CeO
2, Nd
2O
3, Sm
2O
3, Eu
2O
3, and Gd
2O
3, wait rare earth oxide, it is little to obtain specific inductivity, the novel material that the electromechanical coupling anisotropy is big, this material has wide application prospect at aspects such as high frequency, highly sensitive, high-resolution ultrasonic transducers.In stupalith, much more the performance of improving stupalith by the method for doped with rare-earth elements has report, caused the very big concern of domestic and international material educational circles in recent years, but in existing a large amount of synthetic methods, all be adopt solid phase add and adulterated processing technology routine.These methods are difficult to make solid phase hotchpotch uniform distribution in hybrid process, finally affect the microstructure and the crystal boundary characteristic of material, are unfavorable for the improvement of ceramic material property, directly have influence on the application of material.
Purpose of the present invention proposes a kind of processing method that is used for synthesizing rare-earth ceramic material at the deficiency that prior art exists, and this method is a kind of processing method that is used for the engineering ceramic material of synthesizing rare-earth function ceramics.
The present invention realizes according to the following steps:
1, at first ceramic powder is made ceramic plate.
2, expansion is oozed air eliminating in the stove, cause reducing atmosphere.
3, ceramic plate is put into expansion and oozed stove, temperature is about 900 ℃ in the stove.
4, rare earth being mixed with penetration enhancer drips to expansion and oozes in the stove.
Through above-mentioned processing method, rare earth is seeped into the surface of stupalith with expansion and spreads mutually to body, thereby changes the performance of stupalith.
The present invention has rare earth element and adds evenly, method is simple to operate, be easy to advantages such as control, and help the interaction of rare earth and ceramic phase unit, thereby make the piezoelectric property of stupalith, the electromechanical coupling performance, over-all propertieies such as high-temperature oxidation resistance, intensity and toughness significantly improve, and have a wide range of applications at function ceramics and engineering ceramic material field.
Embodiment:
The present invention by with vapor phase process by solid-air interface reaction with rare earth at 900 ℃, to expand surface and interfaces that are seeped into stupalith be to the body phase with 100 droplets/minute the speed of dripping, the rare earth solvent is formulated by rare earth, carbon, nitrogen ternary penetration enhancer.Expansion through 6-8 hour is oozed, and the resistivity of stupalith has reduced by 10
2-10
3About.
Claims (1)
1, a kind of processing method that is used for synthesizing rare-earth ceramic material is characterized in that: realize according to the following steps:
1, at first ceramic powder is made ceramic plate.
2, expansion is oozed air eliminating in the stove, cause reducing atmosphere.
3, ceramic plate is put into expansion and oozed stove, temperature is about 900 ℃ in the stove.
4, rare earth being mixed with penetration enhancer drips to expansion and oozes in the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01112512 CN1377854A (en) | 2001-03-29 | 2001-03-29 | Process for synthesizing rare-earth ceramic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01112512 CN1377854A (en) | 2001-03-29 | 2001-03-29 | Process for synthesizing rare-earth ceramic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1377854A true CN1377854A (en) | 2002-11-06 |
Family
ID=4659298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01112512 Pending CN1377854A (en) | 2001-03-29 | 2001-03-29 | Process for synthesizing rare-earth ceramic material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1377854A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913869A (en) * | 2010-08-12 | 2010-12-15 | 哈尔滨工业大学 | Oxide thermoelectric material capable of being sintered at low temperature and preparation method thereof |
| CN106747289A (en) * | 2016-12-27 | 2017-05-31 | 钦州华安陶艺有限公司 | The slip-casting shaping process of the large-scale vessel of Nixing pottery |
-
2001
- 2001-03-29 CN CN 01112512 patent/CN1377854A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913869A (en) * | 2010-08-12 | 2010-12-15 | 哈尔滨工业大学 | Oxide thermoelectric material capable of being sintered at low temperature and preparation method thereof |
| CN101913869B (en) * | 2010-08-12 | 2012-10-03 | 哈尔滨工业大学 | Oxide thermoelectric material capable of being sintered at low temperature and preparation method thereof |
| CN106747289A (en) * | 2016-12-27 | 2017-05-31 | 钦州华安陶艺有限公司 | The slip-casting shaping process of the large-scale vessel of Nixing pottery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |