CN103242032A - Rare-earth composite ceramic material applied to illumination industry and manufacturing method thereof - Google Patents
Rare-earth composite ceramic material applied to illumination industry and manufacturing method thereof Download PDFInfo
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- CN103242032A CN103242032A CN2013101454149A CN201310145414A CN103242032A CN 103242032 A CN103242032 A CN 103242032A CN 2013101454149 A CN2013101454149 A CN 2013101454149A CN 201310145414 A CN201310145414 A CN 201310145414A CN 103242032 A CN103242032 A CN 103242032A
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- rare earth
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Abstract
The invention relates to a rare-earth composite ceramic material applied to an illumination industry and a manufacturing method thereof. The rare-earth composite ceramic material is characterized by comprising the following substance components in percentage by volume: 70% of a-AL2O3, 20% of TI(C,N), 4% of MO, 3.2% of Ni, 2.5% of Y2O3 and 0.3% of MgO, wherein the mole ratio of the C,N elements of TI(C,N) is (0.4-0.6):(0.6-0.4). The production method comprises the following steps of: mixing component raw materials in proportion; carrying out wet-type ball milling for 40 hours by taking an N2 gas as a protective atmosphere; drying, and screening in N2 gas flows; and finally carrying out hot-pressed sintering for forming, wherein the hot-pressed process parameters are as follows: the hot-pressed pressure is 30-35 Mpa, the hot-pressed temperature is 1600-1700 DEG C, and the heat preservation time is 4-5 minutes. The method disclosed by the invention has the advantages of high reliability, safety, electricity saving, and the like when manufacturing rare-earth composite ceramics.
Description
Technical field:
The invention belongs to the technical field of rare earth composite ceramics, refer more particularly to a kind of manufacture method of novel rare-earth composite ceramic material.
Background technology:
Rare earth oxide refers to 15 kinds of lanthanide oxides of period of element atom ordinal number 57 to 71, and the scandium similar to the lanthanon chemical property (Sc) and yttrium (Y) oxide compound of totally 17 kinds of elements.Rare earth element has all obtained in fields such as oil, chemical industry, metallurgy, weaving, pottery, glass, hydromagnetic materials using widely, 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, 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
3And Gd
2O
3Deng rare earth oxide, can obtain the novel material that specific inductivity is little, the electromechanical coupling anisotropy is big, this material has wide application that report is arranged at the aspects such as ultrasonic transducer of high frequency, highly sensitive, high resolution more, has caused the very big concern of domestic and international material educational circles in recent years.But with regard to professional Application of composite in illuminating industry and make the LED substrate and have the rare earth composite ceramics of joining to yet there are no report.
Summary of the invention:
For the poor toughness that overcomes existing rare earth composite ceramics existence, the problem that intensity is not high, the invention provides a kind of novel rare-earth composite ceramic material and manufacture method thereof that is applied to the good enhancing alumina series ceramics toughness of having of illuminating industry and intensity.
The present invention realizes its goal of the invention by following technology.
A kind of rare earth composite ceramic material and manufacture method thereof that is applied to illuminating industry is characterized in that being made up of the material component of following volume percent:
A-AL
2O
370%, TI (C, N) 20%, MO4%, Ni3.2%, Y
2O
32.5%, MgO O.3%, (C, the mol ratio of C N), N element is for O.4-0.6: 0.6-0.4 for above-mentioned TI.
The purity of above-mentioned each component is greater than 99%, and mean diameter is less than 1 μ m.
A kind of rare earth composite ceramic material and manufacture method thereof that is applied to illuminating industry is characterized in that producing in accordance with the following methods:
Each component raw material is mixed in proportion, with N
2Gas is protective atmosphere, wet ball-milling 40h, and drying is at N
2Sieve in the air-flow, last Thermocompressed sintering and forming, hot pressing parameters is: hot pressing pressure is 30-35Mpa, 1600 ℃-1700 ℃ of hot pressing temperatures, soaking time is 4-5min.
Production method of the present invention is in order to improve purity, so at a-Al
2O
3(C N) before the powder mixes, all adopts rare earth HNO for powder and TI
3With dilute NaOH solution heated wash 1O-30min.
In matrix material of the present invention, by adding metal-powder MO and Ni, play the effect of bonding phase, can improve the intensity of matrix material.
In matrix material of the present invention, by adding Y
2O
3Powder plays clean interface, improves interface bond strength, helps the use mechanism of sintering, improves the mechanical property of material.
The present invention is with ceramic raw material Al
2O
3(C, N) hot pressing is compound, thereby forms Al with TI
2O
3The base TI (C, N) matrix material, this multiple tangerine material have good mechanical generation performance and high temperature resistant, corrosion-resistant, oxidation-resistance is clear and coherent.
Stupalith among the present invention, its test result shows: the bending strength of the composite ceramic material of developing is up to 965Mpa, and fracture toughness property reaches 6.1Mpa
1/2, respectively than pure Al
2O
3Stupalith improves 95% and 61%, improves about 15% and 18% than the corresponding stupalith that does not contain rare earth oxide, and the hardness of material reaches 19.5Gpa, is subjected to the influence of rare earth oxide little.
Compare with existing invention, principal feature of the present invention is by at Al
2O
3(C N) adds rare earth oxide Y in the composite ceramics with TI
2O
3, succeed in developing rare earth reinforcement Al
2O
3(its mechanical property especially more corresponding stupalith and other the existing alumina series stupaliths that contains rare earth element that does not contain rare earth oxide of bending strength has a more substantial increase base TI for C, N) material.
Have advantages such as reliability height, safety, economize on electricity during the prepared rare earth composite ceramics of the present invention.
Compared with prior art, material therefor low price of the present invention, sintering energy consumption is few, sintering time is short, the rare earth composite ceramics product grains that sintering makes is tiny, pore-free, density height, make product have good intensity and toughness, its performance (as thermal conductivity, electric conductivity, specific inductivity etc.) is more reliable and more stable.
Production method of the present invention has simple to operate, the advantage that the goods mechanical property is high.
Embodiment:
The invention will be further described below in conjunction with specific embodiment.
Embodiment:
Get a-AL
2O
370%, TI (C, N) 20%, MO4%, Ni3.2%, Y
2O
32.5%, MgO0.3%, (C, the mol ratio of C N), N element is 0,4-0.6: 0.6-0.4 to above-mentioned TI.
The purity of above-mentioned each component is 99%, and mean diameter is 1 μ m.
Each component raw material is mixed in proportion, with N
2Gas is protective atmosphere, wet ball-milling 40h, and drying is at N
2Sieve in the air-flow, last Thermocompressed sintering and forming, hot pressing parameters is: hot pressing pressure is 35Mpa, 1700 ℃ of hot pressing temperatures, soaking time are 4min.
Production method of the present invention is in order to improve purity, so at a-Al
2O
3(C N) before the powder mixes, adopts rare earth HNO for powder and TI
3With dilute NaOH solution heated wash 20min.
In matrix material of the present invention, by adding metal-powder MO and Ni, play the effect of bonding phase, can improve the intensity of matrix material.
In matrix material of the present invention, by adding Y
2O
3Powder plays clean interface, improves interface bond strength, helps the use mechanism of sintering, improves the mechanical property of material.
The present invention is with ceramic raw material Al
2O
3(C, N) hot pressing is compound, thereby forms Al with TI
2O
3The base TI (C, N) matrix material, this multiple tangerine material have good mechanical generation performance and high temperature resistant, corrosion-resistant, oxidation-resistance is clear and coherent.
Stupalith among the present invention, its test result shows: the bending strength of the composite ceramic material of developing is up to 965Mpa, and fracture toughness property reaches 6.1Mpa
1/2, respectively than pure Al
2O
3Stupalith improves 95% and 61%, improves about 15% and 18% than the corresponding stupalith that does not contain rare earth oxide, and the hardness of material reaches 19.5Gpa, is subjected to the influence of rare earth oxide little.
Claims (2)
1. rare earth composite ceramic material and a manufacture method thereof that is applied to illuminating industry is characterized in that being made up of the material component of following volume percent: a-AL
2O
370%, TI (C, N) 20%, MO4%, Ni3.2%, Y
2O
32.5%, MgO0.3%, and above-mentioned TI (C, the mol ratio of C N), N element is 0.4-0.6: 0.6-0.4; The purity of above-mentioned each component is greater than 99%, and mean diameter is less than 1 μ m.
2. a kind of rare earth composite ceramic material that is applied to illuminating industry according to claim 1, its manufacture method is:
(1) each component raw material is mixed in proportion, with N
2Gas is protective atmosphere, wet ball-milling 40h, and drying is at N
2Sieve in the air-flow, last Thermocompressed sintering and forming, hot pressing parameters is: hot pressing pressure is 30-35Mpa, 1600 ℃-1700 ℃ of hot pressing temperatures, soaking time is 4-5min;
(2) in order to improve purity, so at a-Al
2O
3(C N) before the powder mixes, all adopts rare earth HNO for powder and TI
3With dilute NaOH solution heated wash 10-30min;
(3) by adding metal-powder MO and Ni, play the effect of bonding phase, can improve the intensity of matrix material;
(4) by adding Y
2O
3Powder plays clean interface, improves interface bond strength, helps the use mechanism of sintering, improves the mechanical property of material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101454149A CN103242032A (en) | 2013-04-25 | 2013-04-25 | Rare-earth composite ceramic material applied to illumination industry and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101454149A CN103242032A (en) | 2013-04-25 | 2013-04-25 | Rare-earth composite ceramic material applied to illumination industry and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103242032A true CN103242032A (en) | 2013-08-14 |
Family
ID=48921941
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101454149A Pending CN103242032A (en) | 2013-04-25 | 2013-04-25 | Rare-earth composite ceramic material applied to illumination industry and manufacturing method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1569732A (en) * | 2004-05-11 | 2005-01-26 | 山东轻工业学院 | Rare earth reinforced alumina ceramic composite materials and production method thereof |
| CN102219483A (en) * | 2011-05-04 | 2011-10-19 | 山东大学 | Al2O3-TiN nano-composite ceramic material and preparation method thereof |
-
2013
- 2013-04-25 CN CN2013101454149A patent/CN103242032A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1569732A (en) * | 2004-05-11 | 2005-01-26 | 山东轻工业学院 | Rare earth reinforced alumina ceramic composite materials and production method thereof |
| CN102219483A (en) * | 2011-05-04 | 2011-10-19 | 山东大学 | Al2O3-TiN nano-composite ceramic material and preparation method thereof |
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Application publication date: 20130814 |