CN102863213A - High-density magnesium-stabilized zirconia ceramic - Google Patents
High-density magnesium-stabilized zirconia ceramic Download PDFInfo
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Abstract
The invention relates to a high-density magnesium-stabilized zirconia ceramic which is prepared from the following raw materials: 80-99 mol% of ZrO2, 0.1-10 mol% of MgO, 0.1-0.5 mol% of Y2O3, 0.1-0.5 mol% of CaO and 0.1-5 wt% of sintering accelerator. The preparation technique comprises the following steps: A. preparing powder; and B. preparing ceramic: a. preparing a mixture, b. granulating, c. making a blank, d. discharging adhesive, and e. sintering at high temperature. According to the invention, the firing temperature of the ceramic material is greatly lowered, and the high-density ceramic material can be obtained only at 1600-1690 DEG C; and the relative density is up to 97% or so. The material has the advantages of high bending strength, favorable thermal shock resistance and high ionic conductivity.
Description
Technical field
This invention relates to the zirconia ceramics field.
Technical background
The magnesium partial stabilization zirconium oxide ceramic has very good heat-shock resistance, therefore manufactures oxygen concentration cell with it, is widely used in metallurgy industry, and the oxygen activity of molten metal is measured, and realizes the online detection in the smelting process.Produce the oxygen cell of deciding of excellent property, require the magnesium stabilization zirconium oxide ceramic to have than high density; Very high mechanical bending strength; Very good heat-shock resistance and higher high temperature ionic conductivity.At present for obtaining the magnesium partial stabilization zirconium oxide ceramic material of this premium properties, usually produce powder with chemical precipitation method, must burn till being higher than under 1700 ℃ the temperature, or adopt isostatic pressing, complex process, production cost is high.
Summary of the invention
The present invention produces powder with chemical precipitation method usually for present magnesium partial stabilization zirconium oxide ceramic material exactly, must burn till being higher than under 1700 ℃ the temperature, or employing isostatic pressing, complex process, the deficiency of production cost height, and a kind of high-density magnesium stabilization zirconium oxide ceramic and preparation technology are provided.
High-density magnesium stabilization zirconium oxide ceramic, its proportioning raw materials is:
ZrO
2 80～99mol％ MgO 0.1～10mol％
Y
2O
3 0.1～0.5mol％ CaO 0.1～0.5mol％
Sintering aids 0.1～5wt%
Sintering aids is by Al
2O
3, SiO
2, TiO
2, Fe
2O
3Form, its proportioning is:
Al
2O
3 10～40mol％ SiO
2 30～60mol％
TiO
2 20～50mol％ Fe
2O
3 0.5～20mol％。
Preparation technology is:
B, preparation: will carry out ball milling by the raw material that above proportioning prepares, and adopt planetary mills wet grinding 5-7 hour, then oven dry fills alms bowl, through 1000～1300 ℃ of calcinings, crosses 100～200 mesh sieves, makes powder;
The preparation of B, pottery:
A, batch mixing processed: by weight powder 70～88, paraffin 1～10, polyethylene or polypropylene 10～30, oleic acid 1～10 are mixed, make batch mixing;
B, granulation: batch mixing is passed through tablets press granulation, ∮ 3～5mm;
C, base: with particle injection moulding machine injection moulding, make base substrate;
D, binder removal: base substrate is inserted in the box-type furnace, temperature 100-500 ℃ binder removal 48～72 hours,
E, high temperature sintering: the base substrate behind the binder removal is put in corundum crucible, through 1600～1690 ℃ of sintering, obtained highdensity zircite product.
Advantage of the present invention is: the present invention adopts one package stabilizer MgO, Y
2O
3, CaO and add a certain amount of sintering aids: Al
2o
3, SiO
2, TiO
2, Fe
2O
3Deng, use solid reaction process powder process.The stupalith firing temperature is reduced greatly, just can obtain the high density ceramic material under 1600～1690 ℃, its relative density reaches about 97%.The bending strength of material is high, good thermal shock, and ionic conductivity is high.Can produce the high performance oxygen cell of deciding with this material.
Embodiment
Raw material is pressed the mol proportioning:
ZrO
290mol% MgO 5mol% Y
2O
30.3mol% CaO 0.3mol% sintering aids 0.3wt%;
Sintering aids by the mol proportioning is:
Al
2O
3 25mol％ SiO
2 40mol％
TiO
2 40mol％ Fe
2O
3 10mol％。
A, preparation: will carry out ball milling by the raw material that above proportioning prepares, and adopt planetary mills wet grinding 5-7 hour, then oven dry fills alms bowl, through 1000～1300 ℃ of calcinings, crosses 100～200 mesh sieves, makes powder;
The preparation of B, pottery:
A, batch mixing processed: powder 80kg, paraffin 5kg, polyethylene or polypropylene 20kg, oleic acid 5kg are mixed, make batch mixing;
B, granulation: batch mixing is passed through tablets press granulation, ∮ 3～5mm;
C, base: with particle injection moulding machine injection molding, produce oxygen cell zirconium pipe body;
D, binder removal: base substrate is inserted in the box-type furnace, temperature 100-500 ℃ binder removal 48～72 hours,
E, high temperature sintering: the base substrate behind the binder removal is put in corundum crucible, through 1600～1690 ℃ of sintering, obtained highdensity oxygen cell zirconium tubing products.
Performance: measure the relative density of zirconium pipe with Archimedes's weighting method, its relative density can reach 97%.The bending strength of measuring the zirconium pipe with the mechanics measurement mechanical reaches 2000MPa.Heat-shock resistance, serviceability rate reaches more than 98%.Oxygen cell is light yellow with the zirconium tube exterior.
Claims (2)
1. high-density magnesium stabilization zirconium oxide ceramic is characterized in that its proportioning raw materials is:
ZrO
2 80～99mol％ MgO 0.1～10mol％
Y
2O
3 0.1～0.5mol％ CaO 0.1～0.5mol％
Sintering aids 0.1～5wt%;
Sintering aids is by Al
2O
3, SiO
2, TiO
2, Fe
2O
3Form, its proportioning is:
Al
2O
3 10～40mol％ SiO
2 30～60mol％
TiO
2 20～50mol％ Fe
2O
3 0.5～20mol％。
2. high-density magnesium stabilization zirconium oxide ceramic according to claim 1, it is characterized in that: preparation technology is:
A, preparation: will carry out ball milling by the raw material that above proportioning prepares, and adopt planetary mills wet grinding 5-7 hour, then oven dry fills alms bowl, through 1000～1300 ℃ of calcinings, crosses 100～200 mesh sieves, makes powder;
The preparation of B, pottery:
A, batch mixing processed: by weight powder 70～88, paraffin 1～10, polyethylene or polypropylene 10～30, oleic acid 1～10 are mixed, make batch mixing;
B, granulation: batch mixing is passed through tablets press granulation, ∮ 3～5mm;
C, base: with particle injection moulding machine injection moulding, make base substrate;
D, binder removal: base substrate is inserted in the box-type furnace, temperature 100-500 ℃ binder removal 48～72 hours,
E, high temperature sintering: the base substrate behind the binder removal is put in corundum crucible, through 1600～1690 ℃ of sintering, obtained zircite product.
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|---|---|---|---|
| CN201210345193.5A CN102863213B (en) | 2012-09-14 | 2012-09-14 | High-density magnesium-stabilized zirconia ceramic |
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|---|---|---|---|
| CN201210345193.5A CN102863213B (en) | 2012-09-14 | 2012-09-14 | High-density magnesium-stabilized zirconia ceramic |
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| CN102863213A true CN102863213A (en) | 2013-01-09 |
| CN102863213B CN102863213B (en) | 2014-02-05 |
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Cited By (15)
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|---|---|---|---|---|
| CN103601490A (en) * | 2013-12-02 | 2014-02-26 | 泰州市旺鑫耐火材料有限公司 | Low-temperature sintering method of nozzle zirconium core |
| CN104609857A (en) * | 2015-01-12 | 2015-05-13 | 吴江佳亿电子科技有限公司 | Magnetic ceramic material and preparation method thereof |
| CN104829226A (en) * | 2015-03-27 | 2015-08-12 | 山东中厦电子科技有限公司 | A sensitive functional material used for a planar oxygen sensor and a preparing method thereof |
| CN104926299A (en) * | 2015-06-20 | 2015-09-23 | 宁波博莱特光电科技有限公司 | Production method of ceramic ferrule |
| CN104944948A (en) * | 2015-06-20 | 2015-09-30 | 宁波博莱特光电科技有限公司 | Preparation method for zirconia ceramic ferrule |
| CN105036737A (en) * | 2015-06-20 | 2015-11-11 | 宁波高新区夏远科技有限公司 | Preparation method of high-precision ceramic ferrule |
| CN105813964A (en) * | 2013-12-17 | 2016-07-27 | 京瓷株式会社 | Fiber guide |
| CN106546648A (en) * | 2016-10-27 | 2017-03-29 | 钟祥市中原电子有限责任公司 | A kind of novel liquid steel determines oxygen cell and its preparation technology |
| CN106588037A (en) * | 2016-11-02 | 2017-04-26 | 湖北扬攀冶金科技有限公司 | Zirconium oxide high temperature furnace being high temperature impact resistant |
| CN106866137A (en) * | 2015-12-12 | 2017-06-20 | 中国科学院大连化学物理研究所 | A kind of preparation method of electrolyte |
| CN107324801A (en) * | 2017-06-21 | 2017-11-07 | 东莞华晶粉末冶金有限公司 | A kind of ceramic injection forming material and preparation method thereof |
| CN107778005A (en) * | 2016-08-25 | 2018-03-09 | 上海普拉博冶金检测探头有限公司 | The zirconia ceramics sensor and manufacture craft of a kind of stabilized with yttrium oxide |
| CN109896854A (en) * | 2019-03-01 | 2019-06-18 | 上海景瑞阳实业有限公司 | A kind of electrode material and its preparation method and application |
| CN110467458A (en) * | 2019-08-15 | 2019-11-19 | 上海普拉博冶金检测探头有限公司 | Zirconia ceramics powder and preparation method thereof and zirconia ceramics prepared therefrom |
| CN110655399A (en) * | 2019-09-06 | 2020-01-07 | 钟祥市中原电子有限责任公司 | Breathable ceramic head for molten steel hydrogen determination probe and preparation method thereof |
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| CN103601490B (en) * | 2013-12-02 | 2015-08-05 | 泰州市旺鑫耐火材料有限公司 | A kind of method of low-temperature sintering nozzle zirconium core |
| CN103601490A (en) * | 2013-12-02 | 2014-02-26 | 泰州市旺鑫耐火材料有限公司 | Low-temperature sintering method of nozzle zirconium core |
| CN105813964A (en) * | 2013-12-17 | 2016-07-27 | 京瓷株式会社 | Fiber guide |
| CN104609857A (en) * | 2015-01-12 | 2015-05-13 | 吴江佳亿电子科技有限公司 | Magnetic ceramic material and preparation method thereof |
| CN104829226A (en) * | 2015-03-27 | 2015-08-12 | 山东中厦电子科技有限公司 | A sensitive functional material used for a planar oxygen sensor and a preparing method thereof |
| CN104926299A (en) * | 2015-06-20 | 2015-09-23 | 宁波博莱特光电科技有限公司 | Production method of ceramic ferrule |
| CN104944948A (en) * | 2015-06-20 | 2015-09-30 | 宁波博莱特光电科技有限公司 | Preparation method for zirconia ceramic ferrule |
| CN105036737A (en) * | 2015-06-20 | 2015-11-11 | 宁波高新区夏远科技有限公司 | Preparation method of high-precision ceramic ferrule |
| CN106866137A (en) * | 2015-12-12 | 2017-06-20 | 中国科学院大连化学物理研究所 | A kind of preparation method of electrolyte |
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| CN106588037A (en) * | 2016-11-02 | 2017-04-26 | 湖北扬攀冶金科技有限公司 | Zirconium oxide high temperature furnace being high temperature impact resistant |
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