CN101113093A - Castorite/cordierite multi-phase low-buckling ceramic and preparation method thereof - Google Patents
Castorite/cordierite multi-phase low-buckling ceramic and preparation method thereof Download PDFInfo
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- CN101113093A CN101113093A CNA2007101293029A CN200710129302A CN101113093A CN 101113093 A CN101113093 A CN 101113093A CN A2007101293029 A CNA2007101293029 A CN A2007101293029A CN 200710129302 A CN200710129302 A CN 200710129302A CN 101113093 A CN101113093 A CN 101113093A
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- cordierite
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Abstract
The invention relates to a petalite/cordierite multiphase low expansion ceramic and preparation method thereof. The invention is characterized in that: the invented low expansion ceramic with a main crystal phase of compound petalite and cordierite multiphase crystal structure is made from the following materials that are: petalite, kaolin and talc, and adopts common sintering method of ceramic. The heat expansion coefficient Alpha is 1.0-2.0 multiplied by 10-6 DEG C. The low expansion ceramic with good thermal stability can be made without using expensive lithium containing material such as spodumene and lithium carbonate. The invention can be broadly used in making kiln furniture, high temperature clamp, high temperature radiation baffle, homely heat-resistant tableware, and thermocouple protective tube, etc.
Description
Technical field
The invention belongs to ceramic (pottery) field, related to petalite/trichroite complex phase ceramic with low expansion character and preparation method thereof.
Background technology
Low expansion ceramic is meant that thermal expansivity is less than 2.0 * 10
-6/ ℃ pottery.Low-expansion material is widely used at aspects such as pottery, metallurgy, enamel, special glass, chemical industry, and lithium matter low expansion ceramic enjoys favor owing to its good high temperature resistant, thermal shock resistance and stability at elevated temperature, is widely used in the base, glaze, kiln furnitures, induction heating parts (as the microwave oven pad), astronomical telescope mirror base, home-use oven-to-table ware of pottery etc.
At present, Chang Yong lithium matter low expansion ceramic mainly adopts industrial lithium carbonate (Li
2CO
3) and natural lithium pyroxene (Li
2OAl
2O
34SiO
2) mineral.Quilonum Retard is artificial synthetic material, and its cost is higher than other lithium raw material.Though and triphane can improve the heat-shock resistance of ceramic as ceramic raw material, corrosion resistance, but because there are three crystalline modifications in the triphane crystal, be respectively α-triphane, β-triphane, γ-triphane, and being forms with α-triphane, natural triphane mineral exist, because α-triphane can change the β-triphane structure of high-temperature stable in the high temperature sintering process, about 30% volumetric expansion can take place in this process, cause distortion and the cracking of pottery in sintering process easily, therefore the natural lithium pyroxene needs to form β-triphane 1100 ℃ of calcinings earlier before use, has increased the cost of raw material.And if the lithium matter pottery that will obtain to have the low bulk performance, the triphane consumption must reach more than 50%.
In addition, the principal crystalline phase of the most frequently used lithium matter low expansion ceramic product is triphane and petalite both at home and abroad at present, does not see that as yet principal crystalline phase is the report of compound petalite/trichroite.As Chinese patent literature 200510023142.0 described " a kind of highly heatproof and shockproof ceramic and manufacture method thereof ", its blank adopts calcining triphane powder, high grade kaolinite, quartz and sintering aidses such as titanium dioxide, zirconium dioxide, synthesized β-triphane principal crystalline phase, although have lower thermal expansivity (0.2-1.5 * 10
-6℃), but the consumption of triphane is up to 35-55%, and added industrial chemicals such as titanium dioxide, zirconium dioxide, and cost is higher; Patent documentation 200510035605.5 disclosed " middle temperature heat-stable ceramic and manufacture method thereof " and for example, batching adopts petalite, kaolin and Quilonum Retard, synthesized the petalite principal crystalline phase, wherein the consumption of petalite is 42-70%, the consumption of Quilonum Retard is 0-8%, its cost is apparently higher than patent of the present invention, but its thermal expansivity is higher, reaches 2.0-3.0 * 10
-6/ ℃.
Summary of the invention
One of purpose of the present invention is to develop a kind of cheap, Castorite/cordierite multi-phase low-buckling ceramic that thermal expansivity is low, and another object of the present invention provides a kind of method for preparing above-mentioned materials.
A kind of Castorite/cordierite multi-phase low-buckling ceramic of the present invention is characterized in that forming to fill a prescription by weight:
Petalite: 25～40%, kaolin: 45～60%, quartz: 0～5%, talcum: 8～20% is raw material, adopts the conventional ceramic sintering method, generating principal crystalline phase is the low expansion ceramic of compound petalite/trichroite complex phase crystalline structure.
The method for preparing above-mentioned Castorite/cordierite multi-phase low-buckling ceramic, its feature comprises: by described prescription accurate feed proportioning, according to material: ball: water=1: 1.8～2: 0.8, slip are crossed 250 mesh sieves and are tailed over less than 0.1%, and slurry dewatering becomes plastic pug, through moulding, drying, 1250～1300 ℃ of temperature, sintering under insulation 15～45min condition, acquisition has the low expansion ceramic of petalite/trichroite complex phase crystalline structure, and its thermalexpansioncoefficient is 1.0～2.0 * 10
-6In/℃ the scope.
The present invention utilizes natural mineral raw; the petalite that is adopted need not be calcined in advance; adopt the preparation method of conventional ceramic; prepare whiteness height, physical strength is good, thermostability is excellent stupalith; the extensive application prospect can be widely used in kiln furnitures, high-temperature clamp, hyperthermia radiation baffle plate, home-use oven-to-table ware and protecting tube etc.
Description of drawings
Accompanying drawing 1～7 is the XRD figure spectrum of following embodiment 1～7 obtained material correspondence.
Embodiment
Embodiment 1～7:
Press table 1 and form preparation raw material, through pulverizing, mixing and ball milling, sieve, petalite/trichroite complex phase ceramic that moulding, sintering have obtained having the low bulk performance.
The composition and performance of table 1 petalite/trichroite complex phase ceramic
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Example 7 | |
| Petalite | 28 | 32 | 34 | 34 | 35 | 37 | 40 |
| Talcum | 14 | 10 | 11 | 16 | 9 | 9 | 9 |
| Kaolin | 53 | 54 | 52 | 47 | 54 | 54 | 51 |
| Quartzy | 5 | 4 | 3 | 3 | 2 | 0 | 0 |
| Firing temperature (℃) | 1260 | 1260 | 1260 | 1270 | 1270 | 1260 | 1270 |
| Soaking time (min) | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Coefficient of expansion α (0～600 ℃) (* 10 -6/℃) | 1.821 | 1.891 | 1.951 | 1.481 | 1.052 | 1.209 | 1.345 |
| Folding strength (MPa) | 61.2 | 63.4 | 58.6 | 66.7 | 62.8 | 69.1 | 65.8 |
Claims (2)
1. Castorite/cordierite multi-phase low-buckling ceramic is characterized in that forming with prescription by weight:
Petalite: 25～40%, kaolin: 45～60%, quartz: 0～5%, talcum: 8～20% is raw material, adopts the conventional ceramic sintering method, generating principal crystalline phase is the low expansion ceramic of compound petalite/trichroite complex phase crystalline structure.
2. preparation method of Castorite/cordierite multi-phase low-buckling ceramic according to claim 1, its feature comprises: by described prescription accurate feed proportioning, according to material: ball: water=1: 1.8～2: 0.8, slip is crossed 250 mesh sieves and is tailed over less than 0.1%, slurry dewatering becomes plastic pug, through moulding, drying, sintering obtains goods under 1250～1300 ℃ of temperature, insulation 15～45min condition.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101293029A CN101113093A (en) | 2007-06-30 | 2007-06-30 | Castorite/cordierite multi-phase low-buckling ceramic and preparation method thereof |
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|---|---|---|---|
| CNA2007101293029A CN101113093A (en) | 2007-06-30 | 2007-06-30 | Castorite/cordierite multi-phase low-buckling ceramic and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
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Family
ID=39021650
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199034A (en) * | 2011-04-06 | 2011-09-28 | 湖南嘉盛电陶新材料股份有限公司 | Method for preparing cordierite-based microwave dielectric ceramic material |
| CN101717248B (en) * | 2009-11-20 | 2012-01-18 | 景德镇陶瓷学院 | Mid-lower-temperature sintering daily talc ceramic and production method thereof |
| CN102485691A (en) * | 2011-11-14 | 2012-06-06 | 邓宗禹 | Tile with thermal shock resistance, pressure resistance and acid resistance as well as its manufacturing method |
| CN102515730A (en) * | 2011-10-20 | 2012-06-27 | 景德镇陶瓷学院 | Ultra-low-expansion ceramic pot and manufacturing method thereof |
| CN102690105A (en) * | 2012-05-30 | 2012-09-26 | 福建冠福现代家用股份有限公司 | High heat-resistant porcelain and preparation method thereof |
| CN101838138B (en) * | 2009-03-18 | 2012-10-24 | 温克仁 | Novel transparent high-level porcelain mud material and porcelain product thereof |
| CN103232230A (en) * | 2013-04-23 | 2013-08-07 | 陆连锁 | Low-expansion barbecue ceramic having antibacterial function and grill made of same |
| CN107793128A (en) * | 2017-11-07 | 2018-03-13 | 湖南嘉盛电陶新材料股份有限公司 | Low expansion ceramic blank and its preparation method and application |
| CN108101525A (en) * | 2017-12-26 | 2018-06-01 | 江西京尚实业有限公司 | Petalite heat resistant ceramic wok and its preparation process |
| CN109970440A (en) * | 2017-12-28 | 2019-07-05 | 无锡海天臻陶科技有限公司 | A kind of novel high-strength low expansion ceramic cookware and its manufacturing method |
| CN110028307A (en) * | 2019-04-26 | 2019-07-19 | 景德镇陶瓷大学 | A kind of lithium-matrix heat resisting porcelain and preparation method thereof being burnt into reducing flame |
| CN114890430A (en) * | 2022-05-13 | 2022-08-12 | 苏州锦艺新材料科技股份有限公司 | Preparation method of tetragonal crystal petalite powder |
-
2007
- 2007-06-30 CN CNA2007101293029A patent/CN101113093A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838138B (en) * | 2009-03-18 | 2012-10-24 | 温克仁 | Novel transparent high-level porcelain mud material and porcelain product thereof |
| CN101717248B (en) * | 2009-11-20 | 2012-01-18 | 景德镇陶瓷学院 | Mid-lower-temperature sintering daily talc ceramic and production method thereof |
| CN102199034B (en) * | 2011-04-06 | 2012-10-10 | 湖南嘉盛电陶新材料股份有限公司 | Method for preparing cordierite-based microwave dielectric ceramic material |
| CN102199034A (en) * | 2011-04-06 | 2011-09-28 | 湖南嘉盛电陶新材料股份有限公司 | Method for preparing cordierite-based microwave dielectric ceramic material |
| CN102515730B (en) * | 2011-10-20 | 2014-02-26 | 景德镇陶瓷学院 | Ultra-low-expansion ceramic pot and manufacturing method thereof |
| CN102515730A (en) * | 2011-10-20 | 2012-06-27 | 景德镇陶瓷学院 | Ultra-low-expansion ceramic pot and manufacturing method thereof |
| CN102485691A (en) * | 2011-11-14 | 2012-06-06 | 邓宗禹 | Tile with thermal shock resistance, pressure resistance and acid resistance as well as its manufacturing method |
| CN102485691B (en) * | 2011-11-14 | 2012-11-21 | 邓宗禹 | Tile with thermal shock resistance, pressure resistance and acid resistance as well as its manufacturing method |
| CN102690105A (en) * | 2012-05-30 | 2012-09-26 | 福建冠福现代家用股份有限公司 | High heat-resistant porcelain and preparation method thereof |
| CN103232230A (en) * | 2013-04-23 | 2013-08-07 | 陆连锁 | Low-expansion barbecue ceramic having antibacterial function and grill made of same |
| CN107793128A (en) * | 2017-11-07 | 2018-03-13 | 湖南嘉盛电陶新材料股份有限公司 | Low expansion ceramic blank and its preparation method and application |
| CN107793128B (en) * | 2017-11-07 | 2020-03-31 | 湖南嘉盛电陶新材料股份有限公司 | Low-expansion ceramic blank and preparation method and application thereof |
| CN108101525A (en) * | 2017-12-26 | 2018-06-01 | 江西京尚实业有限公司 | Petalite heat resistant ceramic wok and its preparation process |
| CN108101525B (en) * | 2017-12-26 | 2020-10-16 | 江西京尚实业有限公司 | Petalite heat-resistant ceramic frying pan and preparation process thereof |
| CN109970440A (en) * | 2017-12-28 | 2019-07-05 | 无锡海天臻陶科技有限公司 | A kind of novel high-strength low expansion ceramic cookware and its manufacturing method |
| CN110028307A (en) * | 2019-04-26 | 2019-07-19 | 景德镇陶瓷大学 | A kind of lithium-matrix heat resisting porcelain and preparation method thereof being burnt into reducing flame |
| CN114890430A (en) * | 2022-05-13 | 2022-08-12 | 苏州锦艺新材料科技股份有限公司 | Preparation method of tetragonal crystal petalite powder |
| CN114890430B (en) * | 2022-05-13 | 2023-11-21 | 苏州锦艺新材料科技股份有限公司 | Preparation method of tetragonal petalite powder |
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