CN115323384B - Efficient corrosion inhibitor for magnetic refrigeration material and application thereof - Google Patents
Efficient corrosion inhibitor for magnetic refrigeration material and application thereof Download PDFInfo
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- CN115323384B CN115323384B CN202210794046.XA CN202210794046A CN115323384B CN 115323384 B CN115323384 B CN 115323384B CN 202210794046 A CN202210794046 A CN 202210794046A CN 115323384 B CN115323384 B CN 115323384B
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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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
- C23F11/187—Mixtures of inorganic inhibitors
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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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
- C23F11/187—Mixtures of inorganic inhibitors
- C23F11/188—Mixtures of inorganic inhibitors containing phosphates
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The invention provides a high-efficiency corrosion inhibitor for a magnetic refrigeration technology and application thereof, and relates to the technical field of magnetic refrigeration, wherein the high-efficiency corrosion inhibitor comprises at least 3 of the following components: na (Na) 2 MoO 4 ·2H 2 O、Na 2 HPO 4 ·12H 2 O、Na 2 B 4 O 7 ·10H 2 O、Na 2 SiO 3 ·9H 2 O、NaH 2 PO 4 、Na 2 CO 3 、NaNO 2 、K 2 CrO 7 、ZnSO 4 The method comprises the steps of carrying out a first treatment on the surface of the And the pH value of the efficient corrosion inhibitor is 6-8. Compared with the method for improving the intrinsic corrosion resistance of the magnetic refrigeration material by changing the chemical components and the tissue structure of the magnetic refrigeration material, the high-efficiency corrosion inhibitor prepared by the method has the advantages of simple component proportion, easy preparation operation, better corrosion inhibition effect and wider universality, has great significance for practical application and can greatly promoteApplication of magnetic refrigeration technology.
Description
Technical Field
The invention relates to the technical field of magnetic refrigeration, in particular to a high-efficiency corrosion inhibitor of a magnetic refrigeration material and application of the high-efficiency corrosion inhibitor in the magnetic refrigeration technology.
Background
In modern society, refrigeration technology has been widely used in various industries of human life. The energy consumption ratio for refrigeration in daily life reaches 28%, and the greenhouse gas CO is brought by the energy consumption ratio 2 The discharge rate is more up to 30%. The efficiency of the traditional gas compression refrigeration technology is only about 40%, and a large amount of greenhouse gas emission is caused, so that people are urged to find novel efficient, energy-saving and environment-friendly refrigeration technology. Compared with the traditional gas compression refrigeration technology, the continuously developed novel solid-state phase-change refrigeration technology has the advantages of environmental protection, high efficiency and energy conservation, and the Kano efficiency theoretical value (60%) is far higher than that of the semiconductor refrigeration technology (5-10%) commonly used in the microelectronics industry. Today, the energy and environmental crisis are increasingly emphasized, and the development of novel solid refrigeration materials and technologies has important social and economic benefits. And a great deal of financial resources and material resources are invested in all countries in the world to research solid card effect materials and technologies.
The magnetic refrigeration technology is a green refrigeration technology which uses magnetic materials as working media and utilizes the magnetocaloric effect of the materials to refrigerate. Compared with the traditional gas compression-expansion refrigeration technology, the magnetic refrigeration technology has the following advantages: 1) Green and environment-friendly: the magnetic refrigeration adopts a solid refrigeration working medium, so that the problems of toxic gas, easy leakage, flammability, ozone layer damage, greenhouse effect and the like are solved; 2) High efficiency and energy saving: the thermodynamic process of magnetic refrigeration to produce magnetocaloric effect is efficient and reversible, and the intrinsic thermodynamic efficiency can reach 60-70% of Kano efficiency; 3) Stable and reliable: the magnetic refrigeration does not need a gas compressor, and has the advantages of small vibration and noise, long service life and high reliability. Therefore, magnetic refrigeration technology has gained widespread attention worldwide in recent years.
In recent years, when a magnetic refrigeration material is used as a refrigeration working medium in a refrigerator, a water-based heat exchange fluid is mainly adopted as a heat exchange medium of a refrigeration cycle, so that the magnetic refrigeration material has serious corrosion problem. Particularly, the continuous change of cold-heat exchange fluid and alternating magnetic field greatly hinders the development and application of magnetic refrigeration materials and technologies due to the more serious corrosion of the magnetic refrigeration materials. Therefore, the problem of corrosion of the magnetic refrigeration material in the application process is a key problem to be solved urgently.
In previous studies, researchers have improved the intrinsic corrosion resistance of magnetic refrigeration materials by changing the chemical composition and the structure of the magnetic refrigeration materials. For example, patent 201310014932.7 proposes the incorporation of Cr element in rare earth magnetic refrigerant materials to improve their corrosion properties. In addition, patent 201910792374.4 proposes to prepare a complex-phase magnetic refrigeration material to form a special hetero-phase with high corrosion resistance, thereby improving corrosion resistance. However, the above method is complicated, the improvement of corrosion resistance is not remarkable, and the method does not have universality applicable to different kinds of magnetic refrigeration materials. In contrast, it is generally easier to operate, has better corrosion inhibition effect and wider universality by introducing corrosion inhibitors into water-based heat exchange fluids.
CN101514458B provides a water-soluble corrosion inhibitor for La-Fe-Si series room temperature magnetic refrigeration materials, which can significantly improve corrosion resistance of La-Fe-Si series room temperature magnetic refrigeration materials in aqueous heat exchange fluid, specifically comprises 0.1-10wt% aluminate, 0-5wt% dichromate, 0-8wt% nitrite, 0.5-3wt% orthophosphate, 0.05-2wt% silicate, 0-1wt% borate, 0-3wt% sodium benzoate, 0-0.1wt% zinc sulfate, 0-0.5wt% sodium carbonate and 0-10wt% triethanolamine, and the base solution is distilled water. However, the pH value of the corrosion inhibitor is not considered, so that a strong alkaline corrosion inhibitor can be adopted, and although the magnetic refrigeration material is subjected to corrosion inhibition, the corrosion inhibitor can erode other parts of the magnetic refrigeration system, so that the magnetic refrigeration system cannot be practically applied.
In view of the above research background and the need of practical application of magnetic refrigeration technology, in recent years, searching for a high-efficiency corrosion inhibitor for magnetic refrigeration materials has become a new hotspot in the research field of magnetic refrigeration technology.
Disclosure of Invention
The invention aims to provide a high-efficiency corrosion inhibitor for a magnetic refrigeration technology, which has the advantages of simple component proportion, easy preparation operation, better corrosion inhibition effect and wider universality, and can greatly promote the application of the magnetic refrigeration technology. The invention fully considers the pH value of the corrosion inhibitor, and achieves the effects of good corrosion inhibition effect and neutral pH value by adopting different chemical components and proportions and meeting the corrosion inhibitor with specific pH value, thereby being friendly to equipment and avoiding corrosion.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a high-efficiency corrosion inhibitor for magnetic refrigeration materials comprises at least 3 of the following components: na (Na) 2 MoO 4 ·2H 2 O、Na 2 HPO 4 ·12H 2 O、Na 2 B 4 O 7 ·10H 2 O、Na 2 SiO 3 ·9H 2 O、NaH 2 PO 4 、Na 2 CO 3 、NaNO 2 、K 2 CrO 7 、ZnSO 4 The method comprises the steps of carrying out a first treatment on the surface of the The pH value of the efficient corrosion inhibitor is 6-8; wherein, relative to the base liquid water, na 2 MoO 4 ·2H 2 The concentration of O is 0-20 g/L, na 2 HPO 4 ·12H 2 The concentration of O is 0-20 g/L, na 2 B 4 O 7 ·10H 2 The concentration of O is 0-20 g/L; na (Na) 2 SiO 3 ·9H 2 The concentration of O is 0-10 g/L, naH 2 PO 4 The concentration of Na is 0-10 g/L 2 CO 3 The concentration of (2) is 0-10 g/L, naNO 2 The concentration of K is 0-10 g/L 2 CrO 7 The concentration of (2) is 0-10 g/L, znSO 4 The concentration of (2) is 0 to 10g/L。
According to the scheme, the components are proportioned according to the concentrations, added into water for physical mixing, and stirred uniformly.
In the present invention, the concentrations of the above components refer to the grams of the corresponding components present in each liter of water. That is, the concentrations of the components are measured relative to the base liquid water of the high-efficiency corrosion inhibitor.
In some preferred embodiments of the present invention, the high-efficiency corrosion inhibitor consists of the following components: na (Na) 2 MoO 4 ·2H 2 O、Na 2 HPO 4 ·12H 2 O and NaH 2 PO 4 Relative to the base liquid water, na 2 MoO 4 ·2H 2 The concentration of O is 1-5 g/L, na 2 HPO 4 ·12H 2 The concentration of O is 0.5-4 g/L, naH 2 PO 4 The concentration of (C) is 0.1-1.5 g/L. The invention can only adopt 3 compositions and can maintain a certain pH value, thus obtaining excellent slow release effect.
In some preferred embodiments of the present invention, the high-efficiency corrosion inhibitor consists of the following components: na (Na) 2 MoO 4 ·2H 2 O、Na 2 B 4 O 7 ·10H 2 O、Na 2 SiO 3 ·9H 2 O and NaH 2 PO 4 Relative to the base liquid water, na 2 MoO 4 ·2H 2 The concentration of O is 1-5 g/L, na 2 B 4 O 7 ·10H 2 The concentration of O is 1-3 g/L, na 2 SiO 3 ·9H 2 The concentration of O is 1-3 g/L, naH 2 PO 4 The concentration of (C) is 1-3 g/L.
In some preferred embodiments of the present invention, the high-efficiency corrosion inhibitor consists of the following components: na (Na) 2 MoO 4 ·2H 2 O、Na 2 HPO 4 ·12H 2 O、Na 2 B 4 O 7 ·10H 2 O、Na 2 CO 3 And NaNO 2 The method comprises the steps of carrying out a first treatment on the surface of the Relative to the base liquid water, na 2 MoO 4 ·2H 2 The concentration of O is 3-7 g/L, na 2 HPO 4 ·12H 2 The concentration of O is 0.5-3g/L，Na 2 B 4 O 7 ·10H 2 The concentration of O is 1-6 g/L, na 2 CO 3 The concentration of (2) is 7-15 g/L, naNO 2 The concentration of (C) is 0.5-4 g/L.
In some preferred embodiments of the present invention, the high-efficiency corrosion inhibitor consists of the following components: na (Na) 2 HPO 4 ·12H 2 O、Na 2 B 4 O 7 ·10H 2 O、Na 2 SiO 3 ·9H 2 O、NaH 2 PO 4 、K 2 CrO 7 、ZnSO 4 The method comprises the steps of carrying out a first treatment on the surface of the Relative to the base liquid water, na 2 HPO 4 ·12H 2 The concentration of O is 1-3 g/L, na 2 B 4 O 7 ·10H 2 The concentration of O is 4-6 g/L, na 2 SiO 3 ·9H 2 The concentration of O is 7-9 g/L, naH 2 PO 4 The concentration of K is 5-7 g/L 2 CrO 7 The concentration of (2) is 11-13 g/L, znSO 4 The concentration of (C) is 0.1-1 g/L.
The magnetic refrigeration material of the invention can be La (Fe, si) 13 MnFe (P, X) (x=si or Ge), gd or Gd 5 (Si,Ge) 4 A base magnetic refrigeration material. Because the corrosion mechanisms of different materials are different, the requirements of the required corrosion inhibitors are different, and the high-efficiency corrosion inhibitor is particularly suitable for the magnetic refrigeration materials, and can obtain excellent slow-release effect.
According to the scheme, the corrosion current density value of the magnetic refrigeration material soaked in the high-efficiency corrosion inhibitor for 500 hours is 0-5 mu A/cm 2 Corrosion rate of<0.005g/m 2 h。
The invention also provides application of the high-efficiency corrosion inhibitor in corrosion prevention of magnetic refrigeration materials.
Compared with the prior art, the invention has the beneficial effects that:
compared with the corrosion inhibitor in the prior art, the corrosion inhibitor disclosed by the invention has the advantages that due to the adoption of special components and the specific content, and the specific pH value is met, an effective passivation film can be formed on the surface of a material, the efficient corrosion inhibition effect is achieved, and the pH value neutrality of the corrosion inhibitor can be considered, so that the synergistic corrosion resistance effect of all components is achieved.
Compared with the method for improving the intrinsic corrosion resistance of the magnetic refrigeration material by changing the chemical components and the tissue structure of the magnetic refrigeration material, the high-efficiency corrosion inhibitor prepared by the invention has simple component proportion and easy preparation operation; has better corrosion inhibition effect and wider universality, and has important significance for practical application.
Drawings
FIG. 1 shows a typical La (Fe, si) 13 The base magnetic refrigeration materials are respectively soaked in the corrosion inhibitors obtained in the example 1, the comparative example 1 and the comparative example 2 for 1 day;
FIG. 2 shows a typical La (Fe, si) 13 Electric polarization curves of the base magnetic refrigeration materials in the example 1 and the comparative example 1 of the present invention, respectively;
FIG. 3 shows a typical La (Fe, si) 13 The base magnetic refrigeration material was immersed for a corrosion rate of 504 hours in example 1 and comparative example 1 of the present invention, respectively.
Detailed Description
The technical scheme of the invention is described below with reference to the accompanying drawings and examples.
Example 1:
the invention provides a high-efficiency corrosion inhibitor, which comprises the following components: na (Na) 2 MoO 4 ·2H 2 O、Na 2 HPO 4 ·12H 2 O、NaH 2 PO 4 。
Na in the component 2 MoO 4 ·2H 2 The concentration of O is 3.1g/L, na 2 HPO 4 ·12H 2 The concentration of O is 1.55g/L, naH 2 PO 4 The concentration of (C) was 0.2g/L.
The components are mixed according to the concentration, added into water for physical mixing and stirred uniformly.
Example 2:
the invention provides a high-efficiency corrosion inhibitor, which comprises the following components: na (Na) 2 MoO 4 ·2H 2 O、Na 2 B 4 O 7 ·10H 2 O、Na 2 SiO 3 ·9H 2 O、NaH 2 PO 4 。
Na in the component 2 MoO 4 ·2H 2 The concentration of O is 4.5g/L, na 2 B 4 O 7 ·10H 2 The concentration of O is 2.5g/L, na 2 SiO 3 ·9H 2 The concentration of O is 2.5g/L, naH 2 PO 4 The concentration of (C) was 2.5g/L.
The components are mixed according to the concentration, added into water for physical mixing and stirred uniformly.
Example 3:
the invention provides a high-efficiency corrosion inhibitor, which comprises the following components: na (Na) 2 MoO 4 ·2H 2 O、Na 2 HPO 4 ·12H 2 O、Na 2 B 4 O 7 ·10H 2 O、Na 2 CO 3 、NaNO 2 。
Na in the component 2 MoO 4 ·2H 2 The concentration of O is 5.0g/L, na 2 HPO 4 ·12H 2 The concentration of O is 1.0g/L, na 2 B 4 O 7 ·10H 2 The concentration of O is 3.2g/L, na 2 CO 3 Is 10.0g/L, naNO 2 The concentration of (C) was 0.5g/L.
The components are mixed according to the concentration, added into water for physical mixing and stirred uniformly.
Example 4:
the invention provides a high-efficiency corrosion inhibitor, which comprises the following components: na (Na) 2 HPO 4 ·12H 2 O、Na 2 B 4 O 7 ·10H 2 O、Na 2 SiO 3 ·9H 2 O、NaH 2 PO 4 、K 2 CrO 7 、ZnSO 4 。
Na in the component 2 HPO 4 ·12H 2 The concentration of O is 2.1g/L, na 2 B 4 O 7 ·10H 2 The concentration of O is 5.2g/L, na 2 SiO 3 ·9H 2 O concentration is 8.2g/L, naH 2 PO 4 Is 6.6g/L, K 2 CrO 7 Is 12.5g/L, znSO 4 Concentration of (2)0.3g/L.
The components are mixed according to the concentration, added into water for physical mixing and stirred uniformly.
Comparative example 1:
unlike the above examples, the composition of this comparative example was deionized water, and did not contain 9 components (Na 2 MoO 4 ·2H 2 O、Na 2 HPO 4 ·12H 2 O、Na 2 B 4 O 7 ·10H 2 O、Na 2 SiO 3 ·9H 2 O, etc.).
Comparative example 2:
unlike the above examples, this comparative example employed a corrosion inhibitor provided by CN101514458B, which comprises the following components in concentrations: 10wt% aluminate, 0.1wt% dichromate, 8wt% nitrite, 3wt% orthophosphate, 2wt% silicate, 1wt% borate, 3wt% sodium benzoate, and 10wt% triethanolamine, the base liquid being distilled water.
Test case
Effect comparison was performed using example 1 as an example and comparative examples 1 to 2:
the corrosion inhibitor in example 1 had a pH of 7.5 and comparative example 1 had a pH of 7.0, both of which were neutral, as measured by a pH meter; whereas comparative example 2 has a pH of 11, exhibits significantly strong alkalinity and can cause severe corrosion to the magnetic refrigeration system.
FIG. 1 shows a typical La (Fe, si) 13 The surface morphology of the base magnetic refrigeration material is respectively compared with that of corrosion inhibitors obtained in example 1, comparative example 1 and comparative example 2 before and after soaking for 1 day. As can be seen, la (Fe, si) 13 After the base magnetic refrigeration material is soaked in deionized water of comparative example 1 and the corrosion inhibitor of comparative example 2 for 1 day, obvious corrosion phenomena appear on the surface. And the surface morphology remained substantially consistent before and after the soaking of the corrosion inhibitor of example 1, without significant corrosion.
FIG. 2 shows a typical La (Fe, si) 13 The electric polarization curves of the base magnetic refrigeration materials in example 1 and comparative example 1, respectively. As can be seen, in the deionized water of comparative example 1, the etching current density of the material was 17.21. Mu.A +.cm 2 Whereas the corrosion current density in the corrosion inhibitor of example 1 was 1.33. Mu.A/cm 2 Significantly lower than the results of comparative example 1, it is well known to those skilled in the art that the lower the corrosion current density, the better the corrosion inhibition.
The significantly lower current density of example 1 demonstrates good corrosion inhibition performance.
FIG. 3 shows a typical La (Fe, si) 13 The base magnetic refrigeration material was immersed for a corrosion rate of 504 hours in example 1 and comparative example 1, respectively. As can be seen from the graph, the corrosion rate in comparative example 1 was 0.25g/m 2 h. Although the corrosion rate of the magnetic refrigeration material in comparative example 2 is lower than that in comparative example 1, the composition ratio is complex, and the pH value is too high, so that the magnetic refrigeration system is severely corroded. Whereas the sample in example 1 had a corrosion rate of only 8.5X10 －4 g/m 2 h, which is much lower than the corrosion rate of the sample of comparative example 1, is also significantly lower than 0.005g/m 2 h, the corrosion inhibitor in the example 1 has high-efficiency corrosion inhibition effect.
The above embodiments are only for illustrating the technical solution of the present invention, and although the above embodiments are described in detail, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, and any modifications and equivalents are intended to be included within the scope of the claims.
Claims (2)
1. The high-efficiency corrosion inhibitor for the magnetic refrigeration material is characterized by comprising the following components: na (Na) 2 MoO 4 ·2H 2 O、Na 2 HPO 4 ·12H 2 O and NaH 2 PO 4 Relative to the base liquid water, na 2 MoO 4 ·2H 2 The concentration of O is 3.1g/L, na 2 HPO 4 ·12H 2 The concentration of O is 1.55g/L, naH 2 PO 4 The concentration of (2) is 0.2g/L, and the pH value of the high-efficiency corrosion inhibitor is 7.5.
2. Use of the high-efficiency corrosion inhibitor according to claim 1 for corrosion protection of magnetic refrigeration materials.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6228283B1 (en) * | 1998-05-22 | 2001-05-08 | Ashland Inc. | Aqueous corrosion inhibitor |
| WO2007084150A2 (en) * | 2005-03-01 | 2007-07-26 | University Of Mississippi Medical Center | Synergistic combinations of chromate-free corrosion inhibitors |
| CN101514458A (en) * | 2007-11-27 | 2009-08-26 | 北京科技大学 | Inhibitor in aqueous heat exchange medium for La-Fe-Si series room temperature magnetic refrigeration materials |
| CN103060692A (en) * | 2013-01-15 | 2013-04-24 | 北京科技大学 | High corrosion resistance rare earth-iron chromium silicon carbon magnetocaloric material and preparation method thereof |
| CN110504076A (en) * | 2019-08-26 | 2019-11-26 | 北京科技大学 | A kind of highly anticorrosive rare earth magnetic refrigerating material and the application method in refrigeration machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112016006653A2 (en) * | 2013-09-27 | 2017-08-01 | Basf Se | use of a composition and cooling systems, climate control units, heat pumps and magnetocaloric generators |
-
2022
- 2022-07-07 CN CN202210794046.XA patent/CN115323384B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6228283B1 (en) * | 1998-05-22 | 2001-05-08 | Ashland Inc. | Aqueous corrosion inhibitor |
| WO2007084150A2 (en) * | 2005-03-01 | 2007-07-26 | University Of Mississippi Medical Center | Synergistic combinations of chromate-free corrosion inhibitors |
| CN101514458A (en) * | 2007-11-27 | 2009-08-26 | 北京科技大学 | Inhibitor in aqueous heat exchange medium for La-Fe-Si series room temperature magnetic refrigeration materials |
| CN103060692A (en) * | 2013-01-15 | 2013-04-24 | 北京科技大学 | High corrosion resistance rare earth-iron chromium silicon carbon magnetocaloric material and preparation method thereof |
| CN110504076A (en) * | 2019-08-26 | 2019-11-26 | 北京科技大学 | A kind of highly anticorrosive rare earth magnetic refrigerating material and the application method in refrigeration machine |
Non-Patent Citations (8)
| Title |
|---|
| "磁致冷材料钆的腐蚀与防腐研究";郝春;《中国优秀硕士学位论文全文数据库 工程科技I辑》;第37页 * |
| "缓蚀剂对LaFe10.8Co0.7Si1.5C0.2磁制冷材料在水介质中腐蚀行为的影响;胡洁;《腐蚀与防护》;说明书第683页右栏第1段、第685页表2、第685页右栏 * |
| Data driven accelerated design of high-efficiency corrosion inhibitor for magnetic refrigeration materials;Zhao, Q et.al;《Corrosion Science》;全文 * |
| LaFe_(11.6)Si_(1.4)合金在水溶液中的缓蚀;张恩耀;陈云贵;唐永柏;谢荣华;涂铭旌;刘涛;王金伟;;稀有金属材料与工程(第09期);全文 * |
| Refrigeration effect of La(FeCoSi)_(13)B_(0.25) compounds and gadolinium metal in reciprocating magnetic refrigerator;程娟;刘国栋;黄焦宏;刘翠兰;金培育;闫宏伟;;Journal of Rare Earths(第12期);全文 * |
| 协同缓蚀剂;曾兆民;;腐蚀与防护(第02期);全文 * |
| 缓蚀剂对金属钆在水介质中腐蚀行为的影响;张泽玉, 龙毅, 叶荣昌, 常永勤, 万发荣;中国稀土学报(第04期);全文 * |
| 钼酸盐及其复配盐对水中钆的缓蚀作用;郝春, 肖素芬, 杨涛;四川化工与腐蚀控制(第04期);全文 * |
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