CN115216754A - Novel multi-principal-element amorphous hydrogen-resistant isotope coating and preparation method thereof - Google Patents
Novel multi-principal-element amorphous hydrogen-resistant isotope coating and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
- C23C18/1208—Oxides, e.g. ceramics
- C23C18/1216—Metal oxides
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
- C23C18/1208—Oxides, e.g. ceramics
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/125—Process of deposition of the inorganic material
- C23C18/1254—Sol or sol-gel processing
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/125—Process of deposition of the inorganic material
- C23C18/1291—Process of deposition of the inorganic material by heating of the substrate
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21B—FUSION REACTORS
- G21B1/00—Thermonuclear fusion reactors
- G21B1/11—Details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Abstract
The invention provides a novel multi-principal element amorphous hydrogen-resistant isotope coating and a preparation method thereof, the coating is a multi-principal element amorphous oxide composed of five components of Al, ti, cr, zr and Er or Al, ti, cr, zr and Si, and the coating covers the base material completely, has uniform element distribution and compact structure and has no defects of pores or cracks and the like. By carrying out component design and structure optimization on the multi-principal-element amorphous coating, excellent hydrogen isotope permeability resistance is obtained, the deuterium resistance factor at 500 ℃ reaches more than three orders of magnitude, and the hydrogen isotope permeability resistance is remarkably improved compared with a single oxide coating and a binary composite coating. The multi-principal-element amorphous coating is prepared by adopting a sol-gel combined dipping process, has simple method, easy operation and low cost, is suitable for preparing coatings on complex surfaces and in pipe fittings, and has important application prospect and value.
Description
Technical Field
The invention belongs to the field of tritium-resistant coatings, and relates to a novel multi-principal-element amorphous oxide, which improves the hydrogen isotope permeability resistance of a coating through the component design and structure optimization of the multi-principal-element amorphous coating.
Background
Deuterium and tritium, which are isotopes of hydrogen, are important raw materials of a nuclear fusion reactor, and in a fusion reactor, because the atomic radii of the deuterium and the tritium are small, the deuterium and the tritium are easy to leak from a hydrogen breeding cladding, so that the serious problems of hydrogen brittleness of structural materials, fuel leakage, nuclear pollution and the like are caused. The preparation of the tritium-resistant coating on the surface of the structural material is an effective method for preventing nuclear fuel leakage and maintaining the fusion reactor tritium self-sustaining function, and is one of the key problems in fusion reactor engineering. The ceramic has the characteristics of low tritium permeability, good high-temperature stability, high dielectric constant, high corrosion resistance and the like, and is an ideal tritium-resistant coating material.
Oxide ceramics such as Al 2 O 3 、Cr 2 O 3 、Er 2 O 3 And the like attract extensive attention due to excellent chemical stability, corrosion resistance, liquid Li-Pb compatibility and certain tritium resistance. However, the tritium-resistant coating formed by a single oxide phase is influenced by factors such as compactness, pores, cracks, a phase structure and the like, and the tritium-resistant performance of the tritium-resistant coating is insufficient. Although recent researches show that the tritium resistance performance can be improved by preparing the binary oxide composite tritium resistance coating, the improvement range is limited. Therefore, development of a new tritium-resistant material to obtain high tritium resistance is urgently needed to solve the problem of tritium permeation leakage in fusion reactor construction.
Disclosure of Invention
Aiming at the problem that the existing tritium resistance material has insufficient tritium resistance, the invention provides a novel multi-principal-element amorphous hydrogen-resistant isotope coating and a preparation method thereof. The sol-gel combined dipping process adopted by the coating preparation has the advantages of simple method, low cost, suitability for complex parts and the like.
In order to realize the purpose, the invention adopts the following technical scheme:
a novel multi-principal element amorphous hydrogen-resistant isotope coating is a multi-principal element amorphous oxide composed of Al, ti, cr, zr and Er or Al, ti, cr, zr and Si.
Further, the coating is formed by single-layer compounding or multi-layer compounding, and the thickness of the coating is 10nm-5 mu m.
The preparation method of the novel multi-principal-element amorphous hydrogen-resistant isotope coating comprises the following steps:
(1) Preparing a liquid precursor, namely taking an aluminum source, a titanium source, a chromium source, a zirconium source, an erbium source or a silicon source, absolute ethyl alcohol, acetone and glacial acetic acid as raw materials, fully stirring and dissolving to form a clear and transparent mixed sol, wherein five components are added according to a molar ratio of 1;
(2) Dipping a stainless steel substrate into the amorphous oxide liquid precursor obtained in the step (1) by adopting a dipping and pulling method, uniformly coating the liquid precursor on the stainless steel substrate to obtain a precursor coating, controlling the rising speed of the substrate to be 100-600 mu m/s, putting the substrate into an oven for drying and shaping after the substrate is completely lifted out of the liquid level, wherein the drying temperature is 50-100 ℃, and the drying time is 0.5-3 h;
(3) Placing the precursor coating obtained in the step (2) in a muffle furnace at 100-600 ℃ for heat preservation for 10-90 min to remove organic matters in the coating, quickly taking out the coating, and cooling the coating to room temperature in air;
(4) Repeating the steps (1) - (3) for 1-20 times, and finally performing heat treatment for 0.5-5 h at 400-1000 ℃ in an air atmosphere by using a muffle furnace at the heating rate of 2-20 ℃/min to form the coating.
Further, the aluminum source comprises one of aluminum acetate, aluminum nitrate, aluminum isopropoxide or a mixture thereof.
Further, the titanium source comprises one of tetrabutyl titanate, titanium ethoxide or a mixture thereof.
Further, the chromium source comprises one or a mixture of chromium acetate, chromium nitrate and chromium chloride.
Further, the zirconium source comprises one of zirconium acetate, zirconium nitrate, zirconium oxychloride or a mixture thereof.
Further, the erbium source comprises one or a mixture of erbium acetate, erbium nitrate and erbium chloride.
Further, the silicon source comprises one of tetraethyl silicate, tetrabutyl silicate or a mixture thereof.
The invention has the following beneficial effects:
1. the invention provides a new tritium-resistant coating design idea, a multi-principal-element amorphous oxide coating is designed and prepared, extremely excellent hydrogen isotope permeability resistance is obtained, and the deuterium permeability reduction factor of the amorphous coating after 650 ℃ heat treatment at 500 ℃ can reach more than 2000;
2. the multi-principal-element amorphous oxide coating is prepared by adopting a sol-gel combined dipping process, can be prepared under the low-temperature condition that the structure and the performance of a steel substrate are not influenced, has simple preparation process and low cost, can be applied to the surface of a part with a complex shape, has strong repeatability, and is suitable for large-scale production.
Drawings
FIG. 1 is an XRD pattern formed by calcination at 650 ℃ of the novel multi-principal element amorphous hydrogen-blocking isotope coating of example 2 of the present invention;
FIG. 2 is a SEM scan of the novel multi-principal element amorphous hydrogen-occluding isotope coating of example 2 during calcination at 650 ℃;
FIG. 3 is a steady-state current diagram of deuterium ion permeation obtained from a high-temperature gas-phase deuterium inhibition experiment in example 1 of the present invention, wherein the calcination temperature is 600 ℃;
FIG. 4 is a steady-state current diagram of deuterium ion permeation obtained from a high-temperature gas phase deuterium inhibition experiment in example 2 of the present invention, wherein the calcination temperature is 650 ℃;
FIG. 5 is a steady-state current diagram of deuterium ion permeation obtained from a high-temperature gas phase deuterium inhibition experiment in example 3 of the present invention, wherein the calcination temperature is 700 ℃;
FIG. 6 is a steady state current diagram of deuterium ion permeation obtained from a high temperature gas phase deuterium inhibition experiment of 321 stainless steel substrates in all examples of the present invention;
fig. 7 is a surface SEM image of a novel multi-principal element amorphous hydrogen-occluding isotope coating in example 2 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
A novel multi-principal-element amorphous hydrogen-resistant isotope coating is prepared by the following method:
1. and (3) polishing 321 stainless steel by using 800#, 1200# and 2000# sandpaper in sequence, ultrasonically treating for 15min by using ethanol, and then cleaning by using acetone and deionized water for later use.
2. Weighing 0.42g of zirconium acetate, 0.56g of aluminum nitrate, 0.34g of chromium acetate and 0.62g of erbium acetate according to a molar ratio of main elements of 1.
3. Dipping a 321 stainless steel substrate into a liquid precursor, setting a pulling speed of 300 mu m/s by a pulling machine, drying the precursor coating at 80 ℃ for 1h, preserving heat at 400 ℃ for 30min, pulling a second layer after cooling, repeating the previous operations, pulling for three times, and finally performing heat treatment,
heat treatment is carried out for 1h at the temperature of 600 ℃, and the heating rate is 10 ℃/min.
The deuterium ion permeation steady-state current in the high temperature gas phase deuterium inhibition experiment of the present example is shown in fig. 3.
Example 2
A novel multi-principal-element amorphous hydrogen-resistant isotope coating is prepared by the following method:
1. and (3) polishing 321 stainless steel by using 800#, 1200# and 2000# sandpaper in sequence, ultrasonically treating for 15min by using ethanol, and then cleaning by using acetone and deionized water for later use.
2. Weighing 0.42g of zirconium acetate, 0.56g of aluminum nitrate, 0.34g of chromium acetate and 0.62g of erbium acetate according to a molar ratio of main elements of 1.
3. Soaking a 321 stainless steel substrate into a liquid precursor, setting a pulling speed of 300 mu m/s by a pulling machine, drying the precursor coating at 80 ℃ for 1h, preserving heat at 400 ℃ for 30min, pulling a second layer after cooling, repeating the previous operations, pulling for three times, and finally performing heat treatment, wherein the heat treatment is performed at 650 ℃ for 1h, and the heating rate is 10 ℃/min.
Deuterium ion permeation steady state current for high temperature gas phase deuterium inhibition experiment of this example is shown in figure 4.
Example 3
A novel multi-principal-element amorphous hydrogen-resistant isotope coating is prepared by the following method:
1. and (3) polishing 321 stainless steel by using 800#, 1200# and 2000# sandpaper in sequence, ultrasonically treating for 15min by using ethanol, and then cleaning by using acetone and deionized water for later use.
2. Weighing 0.42g of zirconium acetate, 0.56g of aluminum nitrate, 0.34g of chromium acetate and 0.62g of erbium acetate according to a molar ratio of main elements of 1.
3. Soaking a 321 stainless steel substrate into a liquid precursor, setting a pulling speed of 300 mu m/s by a pulling machine, drying the precursor coating at 80 ℃ for 1h, preserving heat at 400 ℃ for 30min, pulling a second layer after cooling, repeating the previous operations, pulling for three times, and finally performing heat treatment, wherein the heat treatment is performed at 700 ℃ for 1h, and the heating rate is 10 ℃/min.
The deuterium ion permeation steady state current of the high temperature gas phase deuterium inhibition experiment of this example is shown in fig. 5.
Example 4
A novel multi-principal-element amorphous hydrogen-resistant isotope coating is prepared by the following method:
1. and (3) polishing 321 stainless steel by using 800#, 1200# and 2000# sandpaper in sequence, ultrasonically treating for 15min by using ethanol, and then cleaning by using acetone and deionized water for later use.
2. Weighing 0.42g of zirconium acetate, 0.56g of aluminum nitrate, 0.34g of chromium acetate, 0.51ml of tetrabutyl titanate and 319 μ L of tetraethyl silicate according to a molar ratio of main elements of 1.
3. Soaking a 321 stainless steel substrate into a liquid precursor, setting a pulling speed of 300 mu m/s by a pulling machine, drying the precursor coating at 80 ℃ for 1h, preserving heat at 400 ℃ for 30min, pulling a second layer after cooling, repeating the previous operations, pulling for three times, and finally performing heat treatment, wherein the heat treatment is performed at 600 ℃ for 1h, and the heating rate is 10 ℃/min.
Referring to fig. 1, it can be seen that the XRD pattern of the coating prepared by heat treatment in air at 650 c confirms that the coating is amorphous.
Referring to fig. 2, as a result of scanning SEM images of the surface of the coating, the coating is mainly composed of oxides of five elements, i.e., al, ti, cr, zr, and Er, it can be seen from the atomic ratio of the surface that Fe and Cr elements of the 321 stainless steel substrate diffuse into the coating, and the presence of O element content proves that the metal oxides diffuse into the substrate to some extent, which proves that the coating and the substrate diffuse into each other, which greatly improves the bonding strength between the coating and the substrate.
Referring to fig. 3, 4, 5 and 6, deuterium ion permeation current graphs obtained from gas phase barrier deuterium permeation tests performed on the novel multi-principal element coatings prepared in examples 1, 2 and 3 and 321 stainless steel at 550 ℃ -450 ℃. It can be seen that the steady state current for high temperature gas phase deuterium ion permeation of the coatings obtained at different heat treatment temperatures is at a lower level. At 500 deg.C, the 650 deg.C heat treatment produced the lowest steady state current values for the coating, which was about 1/2740 of the uncoated substrate. The tritium resistance of the coating is evaluated by the ratio of the deuterium permeability of the substrate to the deuterium permeability of the coated substrate, namely PRF, and the deuterium Permeability Reduction Factors (PRF) of the coating prepared by heat treatment at 600 ℃,650 ℃ and 700 ℃ at 500 ℃ are respectively 747, 2740 and 137. It can be seen that the PRF value of the coating prepared in example 2 is the highest, reaching three orders of magnitude, while pure ZrO 2 The PRF value of the coating was about 50,cr 2 O 3 /ZrO 2 The composite coating had a PRF of about 256. Therefore, the deuterium permeation resistance of the novel multi-principal-element coating is remarkably improved compared with that of single and two-element composite coatings.
Fig. 7 is an SEM image of the surface of the novel multi-principal element amorphous hydrogen-blocking isotope coating in example 2, and it can be seen that the coating is dense and has no defects such as pores or cracks, and the dense structure of the coating is very favorable for improving the permeation blocking effect of hydrogen and isotopes.
Example 4, adjusting the types of five components of the liquid precursor to be Al, si, ti, cr, zr, the ratio is still 1.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (9)
1. A novel multi-principal-element amorphous hydrogen-resistant isotope coating is characterized in that: the coating is a multi-principal-element amorphous oxide consisting of Al, ti, cr, zr and Er or five components of Al, ti, cr, zr and Si.
2. The novel multi-principal-element amorphous hydrogen-isotope resistant coating as claimed in claim 1, wherein: the coating is formed by single-layer compounding or multi-layer compounding, and the thickness of the coating is 10nm-5 mu m.
3. A method for preparing a novel multi-principal element amorphous hydrogen-blocking isotope coating as claimed in claim 1 or 2, characterized in that: the method comprises the following steps:
(1) Preparing a liquid precursor, namely taking an aluminum source, a titanium source, a chromium source, a zirconium source, an erbium source or a silicon source, absolute ethyl alcohol, acetone and glacial acetic acid as raw materials, fully stirring and dissolving to form a clear and transparent mixed sol, wherein the five components are added according to a molar ratio of 1;
(2) Dipping a stainless steel substrate into the amorphous oxide liquid precursor obtained in the step (1) by adopting a dipping and pulling method, uniformly coating the liquid precursor on the stainless steel substrate to obtain a precursor coating, controlling the rising speed of the substrate to be 100-600 mu m/s, putting the substrate into an oven for drying and shaping after the substrate is completely lifted out of the liquid level, wherein the drying temperature is 50-100 ℃, and the drying time is 0.5-3 h;
(3) Placing the precursor coating obtained in the step (2) in a muffle furnace at 300-500 ℃ for heat preservation for 10-90 min to remove organic matters in the coating, and quickly taking out the coating and cooling the coating to room temperature in air;
(4) Repeating the steps (1) - (3) for 1-20 times, and finally performing heat treatment for 0.5-5 h at 400-1000 ℃ in an air atmosphere by using a muffle furnace, wherein the heating rate is 5-10 ℃/min, so as to form the coating.
4. The method for preparing a novel multi-principal-element amorphous hydrogen-blocking isotope coating as claimed in claim 3, wherein: the aluminum source comprises one of aluminum acetate, aluminum nitrate, aluminum isopropoxide or a mixture thereof.
5. The method for preparing a novel multi-principal-element amorphous hydrogen-blocking isotope coating as claimed in claim 3, wherein: the titanium source comprises one or a mixture of tetrabutyl titanate and titanium ethoxide.
6. The method for preparing a novel multi-principal-element amorphous hydrogen-blocking isotope coating as claimed in claim 3, wherein: the chromium source comprises one or a mixture of chromium acetate, chromium nitrate and chromium chloride.
7. The method for preparing a novel multi-principal-element amorphous hydrogen-blocking isotope coating as claimed in claim 3, wherein: the zirconium source comprises one or a mixture of zirconium acetate, zirconium nitrate and zirconium oxychloride.
8. The method for preparing a novel multi-principal element amorphous hydrogen-blocking isotope coating as claimed in claim 3, wherein: the erbium source comprises one or a mixture of erbium acetate, erbium nitrate and erbium chloride.
9. The method for preparing a novel multi-principal element amorphous hydrogen-blocking isotope coating as claimed in claim 3, wherein: the silicon source comprises one of tetraethyl silicate and tetrabutyl silicate or a mixture thereof.
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|---|---|---|---|---|
| CN115872725A (en) * | 2022-12-08 | 2023-03-31 | 中国科学院合肥物质科学研究院 | Al-Y-Cr-Fe-Zr-Nb-Ti-Ta-O high-entropy composite oxide hydrogen-resistant coating |
| CN115872725B (en) * | 2022-12-08 | 2023-07-25 | 中国科学院合肥物质科学研究院 | High-entropy composite oxide hydrogen-resistant coating of Al-Y-Cr-Fe-Zr-Nb-Ti-Ta-O |
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