CN104630864A - Hole-sealing method for magnesium alloy micro-arc oxidation coating - Google Patents
Hole-sealing method for magnesium alloy micro-arc oxidation coating Download PDFInfo
- Publication number
- CN104630864A CN104630864A CN201510076185.9A CN201510076185A CN104630864A CN 104630864 A CN104630864 A CN 104630864A CN 201510076185 A CN201510076185 A CN 201510076185A CN 104630864 A CN104630864 A CN 104630864A
- Authority
- CN
- China
- Prior art keywords
- sample
- magnesium alloy
- arc oxidation
- concentration
- mixing solutions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/246—Chemical after-treatment for sealing layers
Abstract
The invention provides a simple and effective hole-sealing method for a magnesium alloy micro-arc oxidation coating. The method comprises the following steps: preparing a PVDF solution; adding sodium orthosilicate, potassium hydroxide or sodium hydroxide, selectively adding benzoyl peroxide (BPO) and divinylbenzene DVB, stirring and reacting for a period of time at the temperature of 30 DEG C and filtering, thereby obtaining the filtrate; soaking a magnesium alloy sample of which the surface is coated with a micro-arc oxidation coating in the filtrate for a period of time, taking out the sample and drying in a drying oven, thereby obtaining the hole-sealed sample. According to the method disclosed by the invention, the problems that pores exist in the magnesium alloy micro-arc oxidation coating and the corrosion resistance is low are solved, so that the pores of the magnesium alloy micro-arc oxidation coating are greatly reduced and the corrosion resistance of the film is greatly improved.
Description
Technical field:
The invention belongs to magnesium alloy differential arc oxidation film hole sealing technology field, specifically relate to a kind of method for sealing of magnesium alloy differential arc oxidation film.
Background technology:
Along with the development of society, magnesium alloy because its there is the capability of electromagnetic shielding that density is low, specific tenacity is high, good, excellent machining property and obtaining in automobile making, space flight and aviation, computer, communication, household electrical appliance applies more and more widely.But because magnesium is a kind of comparatively active metal, Mg-based hydrogen storage very easily corrodes when it is applied.The poor solidity to corrosion of Mg-based hydrogen storage seriously limits their application in each field, thus developed rapidly in the last few years to the Research on Surface Modification of Mg-based hydrogen storage, its Anodic Oxidation, chemical conversion film, differential arc oxidation, electroless plating, plating, thermospray etc. promote the method for corrosion stability of magnesium alloy all more application, wherein differential arc oxidation be a kind of emerging comparatively for convenience of and the good a kind of processing mode of effect.But the ceramic membrane that differential arc oxidation is formed is not fine and close, there is crackle and hole, so just make the Mg alloy surface solidity to corrosion after differential arc oxidation still poor, therefore need to carry out sealing pores to these holes on micro-arc oxidation films surface, thus promote the solidity to corrosion of micro-arc oxidation films.
The present invention adopts macromolecular material polyvinylidene difluoride (PVDF) (PVDF) to carry out sealing of hole to magnesium alloy differential arc oxidation film, obtains good effect, greatly improves the corrosion resistance of magnesium alloy differential arc oxidation film.
Summary of the invention:
Goal of the invention:
Hole and the low problem of resistance to corrosion is there is in order to solve above-mentioned magnesium alloy differential arc oxidation film, the present invention proposes a kind of simple and effective magnesium alloy differential arc oxidation film method for sealing, magnesium alloy differential arc oxidation film hole is greatly reduced, and the resistance to corrosion of film has had very large lifting.
Technical scheme:
A method for sealing for magnesium alloy differential arc oxidation film, is characterized in that: the method is carried out according to the following steps:
(1) compound concentration is the PVDF solution of 20g/L-50g/L, stirs 0.5h and makes its uniform dissolution, then add sodium orthosilicate, potassium hydroxide or sodium hydroxide, and make its concentration in mixing solutions be 3 × 10
-3mol/L-1 × 10
-2mol/L, then after stirring 3h at 30 DEG C, adding the concentration that dibenzoyl peroxide (BPO) makes it in mixing solutions is again that 0mg/ml-1.2mg/ml and divinylbenzene DVB make its volume percent accounted in mixing solutions be 0-0.8%, continues to stir 0.5h and filters, obtain filtrate;
(2) magnesium alloy sample levels surface being coated with micro-arc oxidation films is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, is not all had by sample, then remains on 30 DEG C and places 1h-5h, finally sample is placed in 70 DEG C of baking ovens dry.
Described in step (1), the concentration of divinylbenzene reagent is 54%.
Advantage and effect:
The present invention proposes a kind of method for sealing of magnesium alloy differential arc oxidation film, tool has the following advantages:
(1), can effectively polymer PVDF be incorporated in micro-arc oxidation films, hole is sealed, considerably reduce the porosity of film or completely membrane pores sealed, effectively improve the corrosion resistance of magnesium alloy differential arc oxidation film.
(2), the inventive method is simple to operate, and raw material sources are convenient, and the feature of environmental protection is better, and cost is lower, is easy to realize large-scale industrial and produces.
(3) the magnesium alloy sample, after sealing of hole has good solidity to corrosion, is expected to apply to some extent in fields such as automobile making, computer, communication and household electrical appliance.
Accompanying drawing illustrates:
Alternating-current impedance figure when Fig. 1 is matrix sample (a), uncrosslinked sample (b) and cross-linked samples (c) soak different time in 3.5% sodium chloride solution.
As can be seen from the figure uncrosslinked sample corrosion resistance in sodium chloride solution is better than matrix sample and the corrosion resistance of cross-linked samples in sodium chloride solution.Sample corrosion resistance after crosslinking Treatment is also better than matrix sample.Illustrate that magnesium alloy differential arc oxidation film is after sealing pores, corrosion resisting property improves a lot.
Reference picture 1 is respectively 1 × 10 for sodium orthosilicate concentration
-2mol/L, 8 × 10
-3mol/L, 4 × 10
-3with 3 × 10
-3the PVDF solution of mol/L, as can be seen from the figure, along with sodium orthosilicate strength of solution declines, the color of PVDF solution is also corresponding to shoal.
Figure Central Plains sodium silicate silicate is respectively 1 × 10
-2mol/L, 8 × 10
-3mol/L, 4 × 10
-3with 3 × 10
-3the PVDF solution of mol/L.
Reference picture 2 is through PVDF solution soaking and dried sample photo, and as can be seen from the figure, magnesium alloy differential arc oxidation film is after PVDF sealing of hole, and sample surfaces is very smooth, still presents the color of micro-arc oxidation films.
Embodiment:
Below in conjunction with specific embodiment, the present invention is described further, but protection scope of the present invention is not by the restriction of embodiment.
The present invention relates to a kind of method for sealing of magnesium alloy differential arc oxidation film, it is characterized in that: the method is carried out according to the following steps: the method is carried out according to the following steps:
(1) compound concentration is the PVDF solution of 20g/L-50g/L, stirs 0.5h and makes its uniform dissolution, then add sodium orthosilicate, potassium hydroxide or sodium hydroxide, and make its concentration in mixing solutions be 3 × 10
-3mol/L-1 × 10
-2mol/L, then after stirring 3h at 30 DEG C, adding the concentration that dibenzoyl peroxide (BPO) makes it in mixing solutions is again that 0mg/ml-1.2mg/ml and divinylbenzene DVB make its volume percent accounted in mixing solutions be 0-0.8%, continues to stir 0.5h and filters, obtain filtrate;
(2) magnesium alloy sample levels surface being coated with micro-arc oxidation films is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, is not all had by sample, then remains on 30 DEG C and places 1h-5h, finally sample is placed in 70 DEG C of baking ovens dry.
Described in step (1), the concentration of divinylbenzene reagent is 54%.
Embodiment 1
Compound concentration is the PVDF solution of 20g/L, stirs 0.5h and makes its uniform dissolution, then add sodium orthosilicate, and make its concentration in mixing solutions be 4 × 10
-3mol/L, then after stirring 3h at 30 DEG C, adding the concentration that dibenzoyl peroxide (BPO) makes it in mixing solutions is again that 0.8mg/ml and DVB (concentration is 54%) makes its volume percent accounted in mixing solutions be 0.4%, continue to stir 0.5h to filter, filter, obtain filtrate.Sample levels is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, sample was not all had, then remain on 30 DEG C and place 3h, finally sample is placed in 70 DEG C of baking ovens dry.
Embodiment 2:
Compound concentration is the PVDF solution of 20g/L, stirs 0.5h and makes its uniform dissolution, then add sodium orthosilicate, and make its concentration in mixing solutions be 4 × 10
-3mol/L, then after stirring 3h at 30 DEG C, adding the concentration that dibenzoyl peroxide (BPO) makes it in mixing solutions is again that 1.2mg/ml and DVB (concentration is 54%) makes its volume percent accounted in mixing solutions be 0.4%, continue to stir 0.5h to filter, filter, obtain filtrate.Sample levels is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, sample was not all had, then remain on 30 DEG C and place 3h, finally sample is placed in 70 DEG C of baking ovens dry.
Embodiment 3:
Compound concentration is the PVDF solution of 20g/L, stirs 0.5h and makes its uniform dissolution, then add sodium orthosilicate, and make its concentration in mixing solutions be 4 × 10
-3mol/L, then after stirring 3h at 30 DEG C, adding the concentration that dibenzoyl peroxide (BPO) makes it in mixing solutions is again that 0.8mg/ml and DVB (concentration is 54%) makes its volume percent accounted in mixing solutions be 0.8%, continue to stir 0.5h to filter, filter, obtain filtrate.Sample levels is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, sample was not all had, then remain on 30 DEG C and place 3h, finally sample is placed in 70 DEG C of baking ovens dry.
Embodiment 4:
Compound concentration is the PVDF solution of 20g/L, stirs 0.5h and makes its uniform dissolution, then add sodium orthosilicate, and make its concentration in mixing solutions be 1 × 10
-2mol/L, then after stirring 3h at 30 DEG C, adding the concentration that dibenzoyl peroxide (BPO) makes it in mixing solutions is again that 0.8mg/ml and DVB (concentration is 54%) makes its volume percent accounted in mixing solutions be 0.4%, continue to stir 0.5h to filter, filter, obtain filtrate.Sample levels is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, sample was not all had, then remain on 30 DEG C and place 3h, finally sample is placed in 70 DEG C of baking ovens dry.
Embodiment 5:
Compound concentration is the PVDF solution of 20g/L, stirs 0.5h and makes its uniform dissolution, then add sodium orthosilicate, and make its concentration in mixing solutions be 8 × 10
-3mol/L, then after stirring 3h at 30 DEG C, adding the concentration that dibenzoyl peroxide (BPO) makes it in mixing solutions is again that 0.8mg/ml and DVB (concentration is 54%) makes its volume percent accounted in mixing solutions be 0.4%, continue to stir 0.5h to filter, filter, obtain filtrate.Sample levels is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, sample was not all had, then remain on 30 DEG C and place 3h, finally sample is placed in 70 DEG C of baking ovens dry.
Embodiment 6:
Compound concentration is the PVDF solution of 20g/L, stirs 0.5h and makes its uniform dissolution, then add sodium orthosilicate, and make its concentration in mixing solutions be 3 × 10
-3mol/L, then after stirring 3h at 30 DEG C, adding the concentration that dibenzoyl peroxide (BPO) makes it in mixing solutions is again that 0.8mg/ml and DVB (concentration is 54%) makes its volume percent accounted in mixing solutions be 0.4%, continue to stir 0.5h to filter, filter, obtain filtrate.Sample levels is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, sample was not all had, then remain on 30 DEG C and place 5h, finally sample is placed in 70 DEG C of baking ovens dry.
Embodiment 7:
Compound concentration is the PVDF solution of 20g/L, stirs 0.5h and makes its uniform dissolution, then add sodium orthosilicate, and make its concentration in mixing solutions be 4 × 10
-3mol/L, then after stirring 3h at 30 DEG C, adding the concentration that dibenzoyl peroxide (BPO) makes it in mixing solutions is again that 0.8mg/ml and DVB (concentration is 54%) makes its volume percent accounted in mixing solutions be 0.4%, continue to stir 0.5h to filter, filter, obtain filtrate.Sample levels is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, sample was not all had, then remain on 30 DEG C and place 3h, finally sample is placed in 70 DEG C of baking ovens dry.
Embodiment 8:
Compound concentration is the PVDF solution of 20g/L, stirs 0.5h and makes its uniform dissolution, then add sodium orthosilicate, and make its concentration in mixing solutions be 4 × 10
-3mol/L, after then stirring 3h at 30 DEG C, filters, obtains filtrate.Sample levels is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, sample was not all had, then remain on 30 DEG C and place 3h, finally sample is placed in 70 DEG C of baking ovens dry.
Embodiment 9:
Compound concentration is the PVDF solution of 30g/L, stirs 0.5h and makes its uniform dissolution, then add sodium orthosilicate, and make its concentration in mixing solutions be 4 × 10
-3mol/L, after then stirring 3h at 30 DEG C, filters, obtains filtrate.Sample levels is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, sample was not all had, then remain on 30 DEG C and place 3h, finally sample is placed in 70 DEG C of baking ovens dry.
Embodiment 10:
Compound concentration is the PVDF solution of 40g/L, stirs 0.5h and makes its uniform dissolution, then add sodium orthosilicate, and make its concentration in mixing solutions be 4 × 10
-3mol/L, after then stirring 3h at 30 DEG C, filters, obtains filtrate.Sample levels is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, sample was not all had, then remain on 30 DEG C and place 3h, finally sample is placed in 70 DEG C of baking ovens dry.
Embodiment 11:
Compound concentration is the PVDF solution of 30g/L, stirs 0.5h and makes its uniform dissolution, then add sodium orthosilicate, and make its concentration in mixing solutions be 4 × 10
-3mol/L, after then stirring 3h at 30 DEG C, filters, obtains filtrate.Sample levels is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, sample was not all had, then remain on 30 DEG C and place 4h, finally sample is placed in 70 DEG C of baking ovens dry.
Embodiment 12:
Compound concentration is the PVDF solution of 50g/L, stirs 0.5h and makes its uniform dissolution, then add sodium hydroxide, and make its concentration in mixing solutions be 3 × 10
-3mol/L, after then stirring 3h at 30 DEG C, filters, obtains filtrate.Sample levels is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, sample was not all had, then remain on 30 DEG C and place 2h, finally sample is placed in 70 DEG C of baking ovens dry.
Embodiment 13:
Compound concentration is the PVDF solution of 50g/L, stirs 0.5h and makes its uniform dissolution, then add potassium hydroxide, and make its concentration in mixing solutions be 1 × 10
-2mol/L, after then stirring 3h at 30 DEG C, filters, obtains filtrate.Sample levels is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, sample was not all had, then remain on 30 DEG C and place 1h, finally sample is placed in 70 DEG C of baking ovens dry.
Conclusion: the experiment proved that, the inventive method successfully seals magnesium alloy differential arc oxidation film.After sealing of hole, the solidity to corrosion of magnesium alloy sample is much better than the sample of non-sealing pores, and sealing material and basal body binding force are better simultaneously, in sodium chloride solution after long-time immersion, still keep good solidity to corrosion.
Claims (2)
1. a method for sealing for magnesium alloy differential arc oxidation film, is characterized in that: the method is carried out according to the following steps:
(1) compound concentration is the PVDF solution of 20g/L-50g/L, stirs 0.5h and makes its uniform dissolution, then add sodium orthosilicate, potassium hydroxide or sodium hydroxide, and make its concentration in mixing solutions be 3 × 10
-3mol/L-1 × 10
-2mol/L, then after stirring 3h at 30 DEG C, adding the concentration that dibenzoyl peroxide (BPO) makes it in mixing solutions is again that 0mg/ml-1.2mg/ml and divinylbenzene DVB make its volume percent accounted in mixing solutions be 0-0.8%, continues to stir 0.5h and filters, obtain filtrate;
(2) magnesium alloy sample levels surface being coated with micro-arc oxidation films is positioned over beaker bottom, then filtrate is slowly poured into along walls of beaker, is not all had by sample, then remains on 30 DEG C and places 1h-5h, finally sample is placed in 70 DEG C of baking ovens dry.
2. the method for sealing of magnesium alloy differential arc oxidation film according to claim 1, is characterized in that: described in step (1), the concentration of divinylbenzene reagent is 54%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076185.9A CN104630864B (en) | 2014-11-21 | 2015-02-12 | The method for sealing of magnesium alloy differential arc oxidation film |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014106717925 | 2014-11-21 | ||
| CN201410671792 | 2014-11-21 | ||
| CN201510076185.9A CN104630864B (en) | 2014-11-21 | 2015-02-12 | The method for sealing of magnesium alloy differential arc oxidation film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104630864A true CN104630864A (en) | 2015-05-20 |
| CN104630864B CN104630864B (en) | 2017-07-21 |
Family
ID=53210098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510076185.9A Expired - Fee Related CN104630864B (en) | 2014-11-21 | 2015-02-12 | The method for sealing of magnesium alloy differential arc oxidation film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104630864B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2614917C1 (en) * | 2016-02-09 | 2017-03-30 | Федеральное государственное бюджетное учреждение науки Институт химии Дальневосточного отделения Российской академии наук (ИХ ДВО РАН) | Method for protective composite coatings production on magnesium alloy |
| CN109023470A (en) * | 2018-09-25 | 2018-12-18 | 巩义市宏盛稀有金属有限公司 | The modified aluminium alloy extrusions of a kind of aluminium alloy section surface differential arc oxidation method of modifying and surface |
| CN109137041A (en) * | 2018-09-25 | 2019-01-04 | 巩义市宏盛稀有金属有限公司 | A kind of method for sealing of micro-arc oxidation of aluminum alloy surface film layer |
| CN109811385A (en) * | 2019-02-27 | 2019-05-28 | 长安大学 | Aluminium and aluminum alloy surface polyvinylidene fluoride/aluminum oxide composite membrane and preparation method thereof |
| RU2734426C1 (en) * | 2020-04-23 | 2020-10-16 | Федеральное государственное бюджетное учреждение науки Институт химии Дальневосточного отделения Российской академии наук (ИХ ДВО РАН) | Method of producing protective coatings on magnesium-containing alloys of aluminum |
| RU2782788C1 (en) * | 2022-06-24 | 2022-11-02 | Федеральное государственное бюджетное учреждение науки Институт химии Дальневосточного отделения Российской академии наук (ИХ ДВО РАН) | Method for obtaining conductive superhydrophobic coatings on magnesium alloys |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687488A (en) * | 2005-03-18 | 2005-10-26 | 中国兵器工业第五九研究所 | Technique for treating synergism coat of aluminium alloy material and fluorine polymer |
| CN101649479A (en) * | 2008-08-14 | 2010-02-17 | 深圳富泰宏精密工业有限公司 | Method for sealing micro-arc oxidation films |
| US20120031765A1 (en) * | 2009-04-03 | 2012-02-09 | Keronite International Ltd | Process for the enhanced corrosion protection of valve metals |
| CN102634833A (en) * | 2012-05-02 | 2012-08-15 | 山东理工大学 | Method for composite surface treatment of aluminum alloy tire mold |
| CN102828216A (en) * | 2012-09-24 | 2012-12-19 | 西南石油大学 | Method for sealing holes of micro arc oxidation film at room temperature |
| CN103668386A (en) * | 2013-12-17 | 2014-03-26 | 广西理工职业技术学院 | Aluminum and aluminum alloy surface treatment method |
-
2015
- 2015-02-12 CN CN201510076185.9A patent/CN104630864B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687488A (en) * | 2005-03-18 | 2005-10-26 | 中国兵器工业第五九研究所 | Technique for treating synergism coat of aluminium alloy material and fluorine polymer |
| CN101649479A (en) * | 2008-08-14 | 2010-02-17 | 深圳富泰宏精密工业有限公司 | Method for sealing micro-arc oxidation films |
| US20120031765A1 (en) * | 2009-04-03 | 2012-02-09 | Keronite International Ltd | Process for the enhanced corrosion protection of valve metals |
| CN102634833A (en) * | 2012-05-02 | 2012-08-15 | 山东理工大学 | Method for composite surface treatment of aluminum alloy tire mold |
| CN102828216A (en) * | 2012-09-24 | 2012-12-19 | 西南石油大学 | Method for sealing holes of micro arc oxidation film at room temperature |
| CN103668386A (en) * | 2013-12-17 | 2014-03-26 | 广西理工职业技术学院 | Aluminum and aluminum alloy surface treatment method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2614917C1 (en) * | 2016-02-09 | 2017-03-30 | Федеральное государственное бюджетное учреждение науки Институт химии Дальневосточного отделения Российской академии наук (ИХ ДВО РАН) | Method for protective composite coatings production on magnesium alloy |
| CN109023470A (en) * | 2018-09-25 | 2018-12-18 | 巩义市宏盛稀有金属有限公司 | The modified aluminium alloy extrusions of a kind of aluminium alloy section surface differential arc oxidation method of modifying and surface |
| CN109137041A (en) * | 2018-09-25 | 2019-01-04 | 巩义市宏盛稀有金属有限公司 | A kind of method for sealing of micro-arc oxidation of aluminum alloy surface film layer |
| CN109811385A (en) * | 2019-02-27 | 2019-05-28 | 长安大学 | Aluminium and aluminum alloy surface polyvinylidene fluoride/aluminum oxide composite membrane and preparation method thereof |
| CN109811385B (en) * | 2019-02-27 | 2020-10-27 | 长安大学 | Polyvinylidene fluoride/aluminum oxide composite film on surface of aluminum and aluminum alloy and preparation method thereof |
| RU2734426C1 (en) * | 2020-04-23 | 2020-10-16 | Федеральное государственное бюджетное учреждение науки Институт химии Дальневосточного отделения Российской академии наук (ИХ ДВО РАН) | Method of producing protective coatings on magnesium-containing alloys of aluminum |
| RU2782788C1 (en) * | 2022-06-24 | 2022-11-02 | Федеральное государственное бюджетное учреждение науки Институт химии Дальневосточного отделения Российской академии наук (ИХ ДВО РАН) | Method for obtaining conductive superhydrophobic coatings on magnesium alloys |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104630864B (en) | 2017-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104630864A (en) | Hole-sealing method for magnesium alloy micro-arc oxidation coating | |
| CN109574092B (en) | Preparation method of full-concentration gradient nickel-cobalt-aluminum ternary precursor | |
| CN106992329B (en) | A kind of resource utilization reuse method of waste and old lithium ion battery lithium iron phosphate positive material | |
| CN106947994B (en) | A kind of coat of metal based on cupric oxide nano line | |
| CN104973595A (en) | Three-dimensional porous graphene material, and preparation method and applications thereof | |
| CN113620334B (en) | Dendritic ordered mesoporous copper oxide nano material and preparation method and application thereof | |
| CN107287641A (en) | A kind of method of anodic oxidation of magnetism alloy liquid, preparation method and anodic oxidation of magnetism alloy | |
| CN109234773A (en) | A kind of preparation method of Mg alloy surface composite coating | |
| CN106531994A (en) | Modification method of nickel ferrite negative electrode material | |
| CN109860488A (en) | Lithium battery diaphragm coating paste and preparation method thereof and diaphragm containing the slurry | |
| CN105788882A (en) | Hydrothermal preparation method of cobaltosic oxide nanocube and application of cobaltosic oxide nanocube in electrode slice preparation | |
| CN106119926A (en) | A kind of ceramic coating formed by micro-arc oxidation and preparation method thereof | |
| CN104372394A (en) | Preparation method for oxide ceramic layer | |
| CN109797420B (en) | High-temperature-resistant ceramic oxide film and processing technology thereof | |
| CN109904434A (en) | A kind of porous lithium salts aeroge coated graphite composite material and preparation method | |
| CN104451616A (en) | Chemical nickel plating method for 4Cr13 stainless steel | |
| CN109205684A (en) | A kind of preparation method of small grain size cobaltosic oxide | |
| CN108946825A (en) | A kind of preparation method of small grain size cobaltosic oxide | |
| CN102206847A (en) | Microarc oxidation/sol-gel compound treatment process for magnesium alloy | |
| CN110960990A (en) | Preparation method of inorganic nano homogeneous hybrid PVDF (polyvinylidene fluoride) super-hydrophilic ultrafiltration membrane | |
| CN103311536B (en) | β type covers the preparation method of cobalt hydroxy nickel oxide | |
| CN106119914B (en) | A kind of cobalt manganese alloy electroplate liquid and its application | |
| CN101984514B (en) | Glue solution for surface treatment of nickel-metal hydride (NI-MH) battery plate and gum dipping device | |
| CN105032352A (en) | One-pot method for synthesizing magnetic 3D graphene composite adsorbing material | |
| Abrishamkar et al. | Electrocatalytic oxidation of hydrogen peroxide on the surface of nano zeolite modified carbon paste electrode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20180212 |