CN101891398A - Method for preparing high-temperature anti-oxidation coating with high infrared radiance - Google Patents
Method for preparing high-temperature anti-oxidation coating with high infrared radiance Download PDFInfo
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- CN101891398A CN101891398A CN 201010227851 CN201010227851A CN101891398A CN 101891398 A CN101891398 A CN 101891398A CN 201010227851 CN201010227851 CN 201010227851 CN 201010227851 A CN201010227851 A CN 201010227851A CN 101891398 A CN101891398 A CN 101891398A
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Abstract
The invention relates to a method for preparing a high-temperature anti-oxidation coating with high infrared radiance. Nano SiO2, nano Y2O3 and stable ZrO2 are used as base powder, and magnesium dihydrogen phosphate and sodium phosphate are used as high-temperature binding agents; and the base powder and the high-temperature binding agents are mixed, ball-milled, coated, dried and sintered to form the compact high-temperature anti-oxidation coating with high infrared radiance. The technique belongs to the technical field of inorganic nonmetallic materials. The full-range normal infrared radiance of the high-temperature anti-oxidation coating with high infrared radiance reaches 0.90, and the using temperature is up to 1,600 DEG C; and the high-temperature anti-oxidation coating has obvious anti-oxidation effect and excellent thermal shock resistance, is not easy to drop, and can meet the requirements of oxidation resistance and thermal radiation of a near-space aircraft and a high-temperature heater and applied to an infrared radiation energy-saving paint for an ultrahigh-temperature kiln.
Description
Technical field
The present invention relates to a kind of preparation method, promptly adopt nanometer SiO with high-temperature oxidation resistant coating of high infrared radiance
2With nanometer Y
2O
3Stablize ZrO
2Be matrix powder, adopt primary magnesium phosphate and sodium phosphate to add, after the mixing, obtain fine and close high-temperature oxidation resistant coating with high infrared radiance through ball milling, coating, oven dry, sintering as high temperature adhesives.This technology belongs to technical field of inorganic nonmetallic materials.
Background technology
High-temperature oxidation resistant coating with high infrared radiance mainly can be applied to the protection of high temperature heating element, Graphite Electrodes, aspects such as space flight and military affairs.Application with high-temperature oxidation resistant coating of high infrared radiance can be satisfied the needs of the recovery capsule efficient operation steady in a long-term of the power-supply system used in the space and recoverable spacecraft.The power supply of spacecraft overwhelming majority energy when the operation for total system provides power can become heat in the space, too much gathering of heat can cause total system normally to move, and adopting the heat radiation of thermal radiation form then is approach unique in the high vacuum environment.When rocket lift-off gets through the earth's atmosphere and the recovery capsule of recoverable spacecraft get through the earth's atmosphere when returning ground from sky, because with the atmosphere frictional heating, its appearance temperature is up to more than 1000 ℃, if there is not anti-oxidant and solar heat protection measure, spacecraft will aloft burn or owing to over-heat inside damages.One of solution is exactly to use the high-temperature oxidation resistant coating with high infrared radiance on the spacecraft skin-surface, prevent that as oxidation resistant coating spacecraft from being burnt, simultaneously add severe radiation as the radiative thermal protection structure, can reach the heat radiation purpose, and the lagging material of the quality thicker of this one deck coated material as thin as a wafer is light.The high temperature anti-oxidation coating that U.S. NASA will have a high infrared radiance is coated in and carries out the heat-shock resistance test on the nickel-base alloy, prepares to be used for space shuttle.
The high-temperature oxidation resistant coating that has high infrared radiance simultaneously also can be used for satisfying the anti-oxidant and efficient thermal radiation needs of multiple dual-use equipment, to improve various device to technical requirements anti-oxidant and that thermal radiation property is harsh day by day.Not only can improve its antioxidant property under hot environment such as being applied on silicon carbide, molybdenum disilicide heating element, the Graphite Electrodes, can also prolong its work-ing life; The ir radiation energy-saving coatings that is applied to the ultrahigh-temperature kiln can allow heat energy discharge with efficient thermal-radiating form, improves its thermo-efficiency, and it is more even that product is heated, and improves the quality of products, and reaches energy-efficient purpose.
Summary of the invention
The purpose of this invention is to provide a kind of high-temperature oxidation resistant coating preparation method with high infrared radiance, not only can solve anti-oxidant, the heat radiation and the anti-heat problem of multiple military equipment, can also improve antioxidant property, thermo-efficiency and the quality product of multiple civil equipment, reach the purpose of efficient energy-saving and emission-reducing.
The objective of the invention is to reach by following proposal:
A kind of preparation method with high-temperature oxidation resistant coating of high infrared radiance of the present invention is characterized in that this method comprises following technological process and step:
A. the material composition of the high-temperature oxidation resistant coating with high infrared radiance of She Dinging, unit is wt%:
Nanometer SiO
25～15
Nanometer Y
2O
3Stablize ZrO
215～25
Primary magnesium phosphate 10～20
Sodium phosphate 3～5
Deionized water 35～55
Above component content sum is 100%
B. have the high-temperature oxidation resistant coating of high infrared radiance with feedstock production among the A, its technical process and step are:
By A prescription batching → ball milling 1～3h → evenly be coated on SiC, graphite or the C-base composte material with the method that sprays or flood, thickness is 0.1～1mm → 60～100 ℃ → 1400～1700 ℃ of sintering of oven dry, sintering time is 1～3h, in stove, naturally cool to room temperature then, form the vitreous state coating of one deck densification at matrix surface.
The high-temperature oxidation resistant coating with high infrared radiance of present method preparation, its normal direction infrared emittance has reached more than 0.90, and use temperature can reach more than 1600 ℃, and antioxidant effect is obvious, the thermal shock resistance excellence, difficult drop-off has very high utility value.
Characteristics of the present invention are: 1) new coating formula: adopted nanometer SiO
2With nanometer Y
2O
3Stablize ZrO
2Be matrix powder, adopt primary magnesium phosphate and sodium phosphate to do high temperature adhesives, guarantee the coating densification, high temperature resistant, anti-oxidant, also have high infrared radiance simultaneously, and difficult drop-off.2) new preparation technology of coating: under ultra-high temperature condition, sinter fine and close vitreous state coating into, guarantee that coating has good antioxidant effect below sintering temperature.3) the new layer use that is coated with: not only can solve anti-oxidant, the heat radiation and the anti-heat problem of multiple military equipment, can also improve antioxidant property, thermo-efficiency and the quality product of multiple civil equipment, reach the purpose of efficient energy-saving and emission-reducing.
Embodiment
After now specific embodiments of the invention being described in.
Embodiment 1
The preparation method of the high-temperature oxidation resistant coating with high infrared radiance of present embodiment, this method comprises following technological process and step:
A. the material composition of the high-temperature oxidation resistant coating with high infrared radiance of She Dinging, unit is wt%:
Nanometer SiO
211
Nanometer Y
2O
3Stablize ZrO
222
Primary magnesium phosphate 14
Sodium phosphate 4
Deionized water 49
B. have the high-temperature oxidation resistant coating of high infrared radiance with feedstock production among the A, its technical process and step are:
Method by A prescription batching → ball milling 2h → dipping evenly is coated on the SiC body material, thickness is 0.5mm → 80 ℃ → 1600 ℃ of sintering of oven dry, sintering time is 2h, naturally cools to room temperature then in stove, forms the vitreous state coating of one deck densification at matrix surface.
The sample of present embodiment preparation is analyzed after tested, and its 1～22 μ m normal direction infrared emittance is that 0.90,3～5 μ m normal direction infrared emittances are that 0.88,8～14 μ m normal direction infrared emittances are 0.94 under the room temperature.Substrate surface forms the vitreous state anti-oxidation protection layer of one deck densification, does ablation experiments under 1600 ℃, and ablation phenomen does not appear in the material of matcoveredn, and unprotected material is obviously ablated.Coating obvious crackle and obscission do not occur 10 times at room temperature to 1200 a ℃ following rapid heat cycle.
Claims (1)
1. preparation method with high-temperature oxidation resistant coating of high infrared radiance is characterized in that this method comprises following technological process and step:
A. the material composition of the high-temperature oxidation resistant coating with high infrared radiance of She Dinging, unit is wt%
Nanometer SiO
25～15
Nanometer Y
2O
3Stablize ZrO
215～25
Primary magnesium phosphate 10～20
Sodium phosphate 3～5
Deionized water 35～55
Above component content sum is 100%
B. prepare coating
A prescription batching → ball milling 1～3h → evenly be coated on SiC or graphite or the C-base composte material set by step with the method that sprays or flood, thickness is 0.1～1mm → 60～100 ℃ → 1400～1700 ℃ of sintering of oven dry, sintering time is 1～3h, in stove, naturally cool to room temperature then, have the high-temperature oxidation resistant coating of high infrared radiance at the vitreous state of matrix surface formation one deck densification.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010227851 CN101891398A (en) | 2010-07-15 | 2010-07-15 | Method for preparing high-temperature anti-oxidation coating with high infrared radiance |
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|---|---|---|---|
| CN 201010227851 CN101891398A (en) | 2010-07-15 | 2010-07-15 | Method for preparing high-temperature anti-oxidation coating with high infrared radiance |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603323A (en) * | 2012-03-15 | 2012-07-25 | 上海交通大学 | Antioxidative coating for graphite product and preparation method and application thereof |
| CN102740514A (en) * | 2011-04-02 | 2012-10-17 | 佛山市达利亚热能科技有限公司 | Mica plate coating electric heating device and manufacturing method thereof |
| CN102766866A (en) * | 2012-07-09 | 2012-11-07 | 上海大学 | Method for preparing high-temperature oxidation-resistant coating with high infrared radiation rate by sol-gel method |
| CN104470000A (en) * | 2013-09-25 | 2015-03-25 | 浙江中防海峰新能源有限公司 | Method for manufacturing heating element with surface coating |
| CN105219258A (en) * | 2015-10-16 | 2016-01-06 | 李文超 | A kind of high temperature resistant anti-oxidation High Radiant Rate Coating and using method thereof |
| CN105236743A (en) * | 2015-09-17 | 2016-01-13 | 上海大学 | High-temperature antioxidation glaze layer material with infrared radiation heat-radiation effect and application thereof |
| CN108276823A (en) * | 2018-01-17 | 2018-07-13 | 天津中材工程研究中心有限公司 | SiC ceramic matrix composite material powder and preparation method thereof applied to infrared radiative energy-saving coating |
| CN113149456A (en) * | 2021-03-16 | 2021-07-23 | 湖州维德光电科技有限公司 | Nano-alumina coating process for preventing high-temperature deformation and adhesion of quartz glass |
| CN115385573A (en) * | 2022-08-29 | 2022-11-25 | 陕西科技大学 | Far infrared emitting ceramic powder for daily ceramic and preparation method thereof |
| CN115537104A (en) * | 2022-11-04 | 2022-12-30 | 浙江绿环新材料科技有限公司 | Environment-friendly high-reflectivity powder coating and preparation process thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102740514A (en) * | 2011-04-02 | 2012-10-17 | 佛山市达利亚热能科技有限公司 | Mica plate coating electric heating device and manufacturing method thereof |
| CN102740514B (en) * | 2011-04-02 | 2014-09-24 | 佛山市达利亚热能科技有限公司 | Mica plate coating electric heating device and manufacturing method thereof |
| CN102603323A (en) * | 2012-03-15 | 2012-07-25 | 上海交通大学 | Antioxidative coating for graphite product and preparation method and application thereof |
| CN102766866A (en) * | 2012-07-09 | 2012-11-07 | 上海大学 | Method for preparing high-temperature oxidation-resistant coating with high infrared radiation rate by sol-gel method |
| CN104470000A (en) * | 2013-09-25 | 2015-03-25 | 浙江中防海峰新能源有限公司 | Method for manufacturing heating element with surface coating |
| CN104470000B (en) * | 2013-09-25 | 2018-06-22 | 浙江中防海峰新能源有限公司 | Fever manufacturing method containing face coat |
| CN105236743A (en) * | 2015-09-17 | 2016-01-13 | 上海大学 | High-temperature antioxidation glaze layer material with infrared radiation heat-radiation effect and application thereof |
| CN105219258A (en) * | 2015-10-16 | 2016-01-06 | 李文超 | A kind of high temperature resistant anti-oxidation High Radiant Rate Coating and using method thereof |
| CN108276823A (en) * | 2018-01-17 | 2018-07-13 | 天津中材工程研究中心有限公司 | SiC ceramic matrix composite material powder and preparation method thereof applied to infrared radiative energy-saving coating |
| CN108276823B (en) * | 2018-01-17 | 2021-02-12 | 天津中材工程研究中心有限公司 | SiC composite material powder applied to infrared radiation energy-saving coating and preparation method thereof |
| CN113149456A (en) * | 2021-03-16 | 2021-07-23 | 湖州维德光电科技有限公司 | Nano-alumina coating process for preventing high-temperature deformation and adhesion of quartz glass |
| CN115385573A (en) * | 2022-08-29 | 2022-11-25 | 陕西科技大学 | Far infrared emitting ceramic powder for daily ceramic and preparation method thereof |
| CN115385573B (en) * | 2022-08-29 | 2023-08-18 | 陕西科技大学 | Far infrared emission ceramic powder for domestic ceramics and preparation method thereof |
| CN115537104A (en) * | 2022-11-04 | 2022-12-30 | 浙江绿环新材料科技有限公司 | Environment-friendly high-reflectivity powder coating and preparation process thereof |
| CN115537104B (en) * | 2022-11-04 | 2023-11-24 | 浙江绿环新材料科技有限公司 | Environment-friendly high-reflectivity powder coating and preparation process thereof |
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Application publication date: 20101124 |