CN107759189A - Thermostable heat-isolating coating and the method for improving single crystal growing furnace crucible side service life - Google Patents
Thermostable heat-isolating coating and the method for improving single crystal growing furnace crucible side service life Download PDFInfo
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- CN107759189A CN107759189A CN201610702300.3A CN201610702300A CN107759189A CN 107759189 A CN107759189 A CN 107759189A CN 201610702300 A CN201610702300 A CN 201610702300A CN 107759189 A CN107759189 A CN 107759189A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B30/00—Compositions for artificial stone, not containing binders
- C04B30/02—Compositions for artificial stone, not containing binders containing fibrous materials
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/10—Crucibles or containers for supporting the melt
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/02—Elements
- C30B29/06—Silicon
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metallurgy (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Ceramic Products (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Thermostable heat-isolating coating disclosed by the invention, by mass fraction be respectively 80% aluminium oxide ceramics cenosphere, 4% silicate powder, 6% deionized water and 10% exotic material by mixing together.The method disclosed by the invention for improving single crystal growing furnace crucible side service life, including：Thermostable heat-isolating coating is made by mixing in aluminium oxide ceramics cenosphere, 4% silicate powder, 6% deionized water and 10% exotic material that mass fraction is respectively 80%, then crucible side inwall is applied to, finally by crucible side natural cooling after vacuum calcining in single crystal growing furnace.The present invention thermostable heat-isolating coating except with high temperature resistant, heat-insulation and heat-preservation attribute in addition to, and at high temperature not with SiO2React.Thermostable heat-isolating coating is applied to crucible side inner side by the method for the raising single crystal growing furnace crucible side service life of the present invention, and crucible side can be prevented to be reacted with silica crucible after vacuum calcining, reach the purpose for improving the crucible side life-span.
Description
Technical field
The invention belongs to field of material technology, and in particular to a kind of thermostable heat-isolating coating, further relate to a kind of utilization
The method that the thermostable heat-isolating coating improves single crystal growing furnace crucible side service life.
Background technology
In today of global resources increasingly scarcity, the utilization of solar energy enjoys the favor of people, and photovoltaic generation industry also exists
Fast development, it is more during photovoltaic generation received using monocrystalline silicon piece, conversion solar energy, and monocrystalline silicon piece typically all uses
Pulling of crystals method is drawn, and needs to use single crystal growing furnace when producing monocrystalline silicon piece using pulling of crystals method, crucible support, crucible side are as single
Important thermal field component plays a part of to support and fix silica crucible in vertical pulling method produces monocrystalline silicon in brilliant stove, is given birth in vertical pulling method
Crucible side and silica crucible can react SiO under the high temperature conditions during production monocrystalline silicon2+ C=CO+SiO, this can cause crucible to help
The defects of service life is low.
The content of the invention
It is an object of the invention to provide a kind of thermostable heat-isolating coating, and it can not only be resistant to high temperature, but also
With excellent heat preservation and insulation.
The present invention also aims to provide a kind of method for improving single crystal growing furnace crucible side service life, it is by high temperature resistant heat insulation
Thermal insulation coatings are applied to crucible side inner side, solve and cause crucible side service life after crucible side reacts at high temperature with silica crucible
The problem of shortening.
A kind of technical scheme of the present invention is：Thermostable heat-isolating coating, it is respectively 80% by mass fraction
Aluminium oxide ceramics cenosphere, 4% silicate powder, 6% deionized water and 10% exotic material pass through it is mixed
Close stirring to form, the mass fraction sum of above-mentioned each material is 100%.
The features of the present invention also resides in,
Mass fraction is that 10% exotic material is respectively 1.5% alumina silicate fibre, 1% oxidation by mass fraction
Zirconium powder, 1% silicon carbide powder, 1% yttria powder, 1% Dysprosium trioxide, 0.5 dolomite powder,
1% alpha-silicon nitride powders, 2% barium carbonate powder and 1% lanthanum sesquioxide powder uniformly mix composition.
Another technical solution of the present invention is：The method for improving single crystal growing furnace crucible side service life, including step：
By mass fraction be respectively 80% aluminium oxide ceramics cenosphere, 4% silicate powder, 6% deionized water and
Thermostable heat-isolating coating is made by mixing in 10% exotic material, and the mass fraction sum of above-mentioned each material is
100%, then thermostable heat-isolating coating is uniformly applied to crucible side inwall, finally by crucible side vacuum calcining in single crystal growing furnace
Natural cooling afterwards.
The features of the present invention also resides in,
Mass fraction is that 10% exotic material is respectively 1.5% alumina silicate fibre, 1% oxidation by mass fraction
Zirconium powder, 1% silicon carbide powder, 1% yttria powder, 1% Dysprosium trioxide, 0.5 dolomite powder,
1% alpha-silicon nitride powders, 2% barium carbonate powder and 1% lanthanum sesquioxide powder uniformly mix composition.
The thickness that thermostable heat-isolating coating is uniformly applied to crucible side inwall is 0.7mm-1.5mm.
The time of vacuum calcining is 3h-5h.
The beneficial effects of the invention are as follows：The thermostable heat-isolating coating of the present invention is except with high temperature resistant, heat-insulation and heat-preservation
Attribute outside, and at high temperature not with SiO2React, therefore can be used for needing to completely cut off SiO2Manufacture field.This hair
Above-mentioned thermostable heat-isolating coating is applied to single crystal growing furnace crucible side inner side by the method for bright raising single crystal growing furnace crucible side service life,
Crucible side can be prevented to be reacted with silica crucible after vacuum calcining, so as to reach the purpose for improving crucible side service life.
Brief description of the drawings
Fig. 1 is the structural representation of the single crystal growing furnace used in the method for improving single crystal growing furnace crucible side service life of the present invention.
In figure, 1. single crystal growing furnaces, 2. heaters, 3. crucibles side, 4. thermostable heat-isolating coatings, 5. silica crucibles, 6. pressure pins.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
Thermostable heat-isolating coating provided by the invention, be respectively by mass fraction 80% aluminium oxide ceramics it is hollow micro-
Pearl, 4% silicate powder, 6% deionized water and 10% exotic material are by mixing together, above-mentioned each thing
The mass fraction sum of matter is 100%.
Example, mass fraction be 10% exotic material by mass fraction be respectively 1.5% alumina silicate fibre,
1% Zirconium oxide powder, 1% silicon carbide powder, 1% yttria powder, 1% Dysprosium trioxide, 0.5 white clouds
Stone powder, 1% alpha-silicon nitride powders, 2% barium carbonate powder and 1% lanthanum sesquioxide powder uniformly mix composition.
The method provided by the invention for improving single crystal growing furnace crucible side service life, including step：It is respectively by mass fraction
80% aluminium oxide ceramics cenosphere, 4% silicate powder, 6% deionized water and 10% exotic material leads to
Cross mixing and thermostable heat-isolating coating is made, the mass fraction sum of above-mentioned each material is 100%, then will be described resistance to
High temperature insulating thermal insulation coatings are uniformly applied to crucible side inwall, finally by crucible side natural cooling after vacuum calcining in single crystal growing furnace
.
Example, mass fraction be 10% exotic material by mass fraction be respectively 1.5% alumina silicate fibre,
1% Zirconium oxide powder, 1% silicon carbide powder, 1% yttria powder, 1% Dysprosium trioxide, 0.5% it is white
Marble powder, 1% alpha-silicon nitride powders, 2% barium carbonate powder and 1% lanthanum sesquioxide powder uniformly mix composition.
Example, the thickness that thermostable heat-isolating coating is uniformly applied to crucible side inwall is 0.7mm-1.5mm.It is preferred that
, smearing thickness 1mm.
Preferably, crucible side can be with 85kw power vacuum calcining 3h-5h in single crystal growing furnace.
The method provided by the invention for improving single crystal growing furnace crucible side service life can be used in single crystal growing furnace 1 as shown in Figure 1,
Single crystal growing furnace 1 include setting heater 2 in the inner and through its bottom pressure pin 6 and be arranged at the crucible side at the top of pressure pin 6
3, pressure pin 6 and crucible side 3 coordinate support silica crucible 5, and heater 2 is used to heat silica crucible 5, and crucible side 3 is relative to stone
The inner side of English crucible 5 is coated with thermostable heat-isolating coating 4, finally by single crystal growing furnace 1 with 85kw power vacuum calcining 4h after
After natural cooling, when recycling single crystal growing furnace after this using pulling of crystals method production monocrystalline silicon, due to thermostable heat-isolating
Coating 4 prevents crucible side 3 and silica crucible 5 from reacting, so adding the service life of crucible side 3, calculates record by experiment,
The service life of crucible side 3 improves 10 heats compared to before.
Claims (6)
1. thermostable heat-isolating coating, it is characterised in that by mass fraction be respectively 80% aluminium oxide ceramics cenosphere,
4% silicate powder, 6% deionized water and 10% exotic material are by mixing together, above-mentioned each material
Mass fraction sum be 100%.
2. thermostable heat-isolating coating as claimed in claim 1, it is characterised in that the mass fraction is 10% resistance to height
Adiabator is by alumina silicate fibre that mass fraction is respectively 1.5%, 1% Zirconium oxide powder, 1% silicon carbide powder, 1%
Yttria powder, 1% Dysprosium trioxide, 0.5 dolomite powder, 1% alpha-silicon nitride powders, 2% barium carbonate powder
End and 1% lanthanum sesquioxide powder uniformly mix composition.
3. improve the method for single crystal growing furnace crucible side service life, it is characterised in that including step：It is respectively 80% by mass fraction
Aluminium oxide ceramics cenosphere, 4% silicate powder, 6% deionized water and 10% exotic material pass through mixing
Stirring is made thermostable heat-isolating coating, and the mass fraction sum of above-mentioned each material is 100%, then by the high temperature resistant every
Hot thermal insulation coatings are uniformly applied to crucible side inwall, finally by crucible side natural cooling after vacuum calcining in single crystal growing furnace.
4. the method for single crystal growing furnace crucible side service life is improved as claimed in claim 3, it is characterised in that the mass fraction is
10% exotic material is by alumina silicate fibre, 1% Zirconium oxide powder, 1% carborundum that mass fraction is respectively 1.5%
Powder, 1% yttria powder, 1% Dysprosium trioxide, 0.5 dolomite powder, 1% alpha-silicon nitride powders, 2%
Barium carbonate powder and 1% lanthanum sesquioxide powder uniformly mix composition.
5. the method for improving single crystal growing furnace crucible side service life as described in claim 3 or 4, it is characterised in that the high temperature resistant
The thickness that heat insulating coatings are uniformly applied to crucible side inwall is 0.7mm-1.5mm.
6. the method for improving single crystal growing furnace crucible side service life as described in claim 3 or 4, it is characterised in that the vacuum is forged
The time of burning is 3h-5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610702300.3A CN107759189B (en) | 2016-08-22 | 2016-08-22 | High-temperature-resistant heat-insulating coating and method for prolonging service life of crucible side of single crystal furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610702300.3A CN107759189B (en) | 2016-08-22 | 2016-08-22 | High-temperature-resistant heat-insulating coating and method for prolonging service life of crucible side of single crystal furnace |
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| Publication Number | Publication Date |
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| CN107759189A true CN107759189A (en) | 2018-03-06 |
| CN107759189B CN107759189B (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610702300.3A Active CN107759189B (en) | 2016-08-22 | 2016-08-22 | High-temperature-resistant heat-insulating coating and method for prolonging service life of crucible side of single crystal furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016715A (en) * | 2019-03-14 | 2019-07-16 | 包头美科硅能源有限公司 | A kind of preparation method of polycrystalline cast ingot crucible coating layer |
| CN115198349A (en) * | 2022-07-28 | 2022-10-18 | 宁夏中晶半导体材料有限公司 | Crucible and crucible side cooling assembly |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103525206A (en) * | 2013-09-13 | 2014-01-22 | 任振州 | Stain-resistant heat insulation coating |
| CN104761274A (en) * | 2015-03-26 | 2015-07-08 | 安徽中鼎美达环保科技有限公司 | Silicon carbide porous ceramic and preparation technique thereof |
| CN108298814A (en) * | 2018-02-08 | 2018-07-20 | 合肥利裕泰玻璃制品有限公司 | A kind of novel building glass and preparation method thereof |
-
2016
- 2016-08-22 CN CN201610702300.3A patent/CN107759189B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103525206A (en) * | 2013-09-13 | 2014-01-22 | 任振州 | Stain-resistant heat insulation coating |
| CN104761274A (en) * | 2015-03-26 | 2015-07-08 | 安徽中鼎美达环保科技有限公司 | Silicon carbide porous ceramic and preparation technique thereof |
| CN108298814A (en) * | 2018-02-08 | 2018-07-20 | 合肥利裕泰玻璃制品有限公司 | A kind of novel building glass and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016715A (en) * | 2019-03-14 | 2019-07-16 | 包头美科硅能源有限公司 | A kind of preparation method of polycrystalline cast ingot crucible coating layer |
| CN115198349A (en) * | 2022-07-28 | 2022-10-18 | 宁夏中晶半导体材料有限公司 | Crucible and crucible side cooling assembly |
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| Publication number | Publication date |
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| CN107759189B (en) | 2020-07-24 |
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