CN1793058A - Process for preparing large particle spherical metal ceramic nano composite spraying powder - Google Patents
Process for preparing large particle spherical metal ceramic nano composite spraying powder Download PDFInfo
- Publication number
- CN1793058A CN1793058A CN 200510110207 CN200510110207A CN1793058A CN 1793058 A CN1793058 A CN 1793058A CN 200510110207 CN200510110207 CN 200510110207 CN 200510110207 A CN200510110207 A CN 200510110207A CN 1793058 A CN1793058 A CN 1793058A
- Authority
- CN
- China
- Prior art keywords
- powder
- ceramic nano
- nano composite
- metal ceramic
- large granular
- 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.)
- Pending
Links
Landscapes
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention relates to a macro aggregate spheroid metal ceramic nm compounding powder manufacture method. The primary powder constituents and the weight ratio is 50-70% titanium diboride, 10-24% cobalt, 6-13% chromium powder, 5-11% tungsten boride, and the other is rare earth powder. The process includes the following steps: making nm cobalt and chromium water solution, making metal ceramic nm compounding gel, spraying, taking grain powder stage treatment. The invention is low cost, simple method.
Description
Technical field
The present invention relates to a kind of method of cermet material technical field, specifically is a kind of preparation method of large granular spherical metal ceramic nano composite spraying powder.
Background technology
As the critical process parts of pot galvanize unit, the sinking roller of zinc-plated sinking roller system, to stablize work-ing life of roller very short because of the corrosion of molten aluminum zinc alloy always since long-term.Especially along with the increase of aluminium content in the zinc alloy, the use temperature of alloy liquid increases, thereby causes the work-ing life of zinc-plated roller sharply brief.Along with continuing to bring out of novel aluminum-zinc alloy layer, 55%Al aluminum-zinc alloy liquid demand just constantly rises, and this coating is had higher requirement to the use temperature of liquation, promptly reaches 600 degree.Therefore, to the sinking roller and stablize roller top coat demands for higher performance.
Through the literature search of prior art is found, Chinese patent application number: CN03128915.0, title: the preparation method of large granular spherical submicron/fiber ceramics composite granule.This patent relates to the preparation method of large granular spherical submicron/fiber ceramics composite granule.Its production process is: (1) obtains water base submicron/fiber ceramics colloid by wet ball grinding; (2) with water base submicron/fiber ceramics colloid by centrifugal or press atomization granulation, prepare large granular spherical submicron/fiber composite ceramics powder; (3) submicron of the large granular spherical behind the mist projection granulating/fiber composite ceramics powder is heat-treated, eliminate wherein organic component and moisture, and realize respectively the combining closely between the composition of large granular spherical submicron/fiber composite ceramics powder granule inside; (4) submicron of the large granular spherical after the thermal treatment/fiber composite ceramics powder is carried out plasma body densificationization and further spheroidization processing, obtain large granular spherical submicron/fiber composite ceramics powder.But the powder that this patent relates to mainly is large granular spherical submicron/staple fibre ceramic composite powder of the powder constituent of two or more dimensionss in submicron, nanometer, three kinds of elementary ceramics powders of staple fibre and preparation method thereof, does not relate to the nano level metal cobalt that is easy to oxidation and chromium as the preparation method who forms large granular spherical metal ceramic nano composite spraying powder phase, that be used for thermospray.Because cobalt metal and chromium reach after the nano level, its specific surface area and surface energy are bigger, very easily in air or water oxygenization, therefore, traditional powder preparing granulation process not exclusively is suitable for the preparation of this powder, need the new preparation technology of exploitation, form phase, be suitable for the preparation method of the large granular spherical metal ceramic nano composite spraying powder of used for hot spraying as part to produce by nano metal.
Summary of the invention
The present invention is directed to deficiency of the prior art and defective; a kind of large granular spherical metal ceramic nano composite spraying preparation methods is provided; make its large granular spherical that obtains submicron/fiber ceramics composite granule can directly apply to thermospray; and the pre-sprayed protection layer of sinking roller and stable roller surface by the hot-spraying techniques preparation has excellent wear-resistant, high temperature resistant, alumite liquid zinc corrosion ability; reduce generating and maintenance cost, improve the aluminum-zinc alloy strip quality.
The present invention is achieved through the following technical solutions: the elementary powder composition and the weight percent that are used for the preparation of large granular spherical metal ceramic nano composite granule are: 50～70% TiB2s, 10～24% cobalts, 6～13% chromium powders, 5～11% tungsten borides, surplus are the rare earth powder, the granularity of TiB2, tungsten boride and rare earth powder is all between 0.5 micron to 1 micron, cobalt and chromium powder granularity are all less than 100 nanometers, and preparation process of the present invention is as follows:
(1) aqueous solution of preparation nanometer cobalt, chromium;
(2) the compound colloid of preparation metal-ceramic nano;
(3) with water-base metal ceramic nano composite gel by centrifugal or press atomization granulation;
(4) the inferior large granular spherical metal ceramic nano composite granule of the large granular spherical behind the mist projection granulating is carried out vacuum or the thermal treatment of protection gas;
(5) stage treatment of granulation powder.
Described step (1), specific as follows:
Will through finishing, surface be inert nanometre grade cobalt, chromium in proportion with deionized water, dispersant, obtain the aqueous solution of finely disseminated nanometer cobalt, chromium by wet ball grinding.Its used wet ball grinding equipment is one of ball-grinding machines such as planetary ball mill, vibratory milling, agitating ball mill.With the A15 dispersion agent as dispersion medium.Deionized water is as solvent, and agate ball, alumina balls, zirconia ball, carbide ball etc. are as ball-milling medium, and wherein the diameter of ball is between 5 millimeters～15 millimeters.Difference according to colloidal dispersion, A15 content is about nanometer cobalt, chromium, TiB2, the native powder of wolfram varbide and elder generation formed in proportion and always expects 0.1～0.8% of content weight admittedly, the deionized water quality is about always expects admittedly that 0.5～4: 1 of content, the quality of ball-milling medium are about and always expects content 1～4 admittedly: 1.Rotating speed during wet ball grinding is 150r/min, and the ball milling time is 2～4 hours.
Described step (2), specific as follows:
At first, titanium diboride powder, tungsten boride powder and rare earth powder are joined in the above-mentioned aqueous solution in proportion, continuing with the rotating speed is 150r/min wet ball grinding 2～4 hours, makes powder obtain abundant stably dispersing.Secondly, add binding agent, continuing with the rotating speed is 150r/min wet ball grinding 4～8 hours.Thereafter adding defoamer, is 150r/min wet ball grinding 15～30 hours with the rotating speed, obtains stable, the compound colloid of finely disseminated water-base metal ceramic nano.With PVA, CMC etc. as binding agent, with propyl carbinol or n-Octanol as defoamer.The content of binding agent and defoamer is about titanium diboride powder, tungsten boride powder and rare earth powder and expects 0.5%～3% and 0.1%～0.5% of weight admittedly.
Described step (3), specific as follows:
The method of its mist projection granulating is centrifugal spraying or press atomization.The processing parameter of mist projection granulating is: inlet temperature is between 300～350 ℃, and air outlet temperature is between 110～120 ℃.According to the flow of different spray drying device regulations, metal-ceramic nano composite mortar flow is between 5～300kg/h.By mist projection granulating, can prepare median size is 30～60 microns, the large granular spherical submicron/fiber composite ceramics powder of size distribution between 10～100 microns.
Described step (4), specific as follows:
Handle by the vacuum or the protection gas thermal treatment process of the large granular spherical metal ceramic nano powder for preparing behind the mist projection granulating being carried out corresponding measure; to remove organic composition and remaining moisture such as the dispersion agent that wherein has, binding agent, defoamer; prevent nano metal oxide; realize respectively the combining closely between the composition of large granular spherical large granular spherical metal ceramic nano composite granule granule interior, and keep the yardstick and the shape of large granular spherical submicron/fiber composite ceramics powder.Used Equipment for Heating Processing is selected well formula, chamber type electric resistance furnace or sintering oven or vacuum heat treatment furnace for use.Thermal treatment temp is between 400～900 ℃.Selected protection gas is a kind of in high-purity hydrogen, nitrogen or the argon gas.
Described step (5), specific as follows:
Will by through the granulation powder of vacuum or protection gas disposal through stage treatment, obtain the large granular spherical metal ceramic nano composite spraying powder that particle size distribution is respectively 20～45 microns and 45～75 microns.Selected stage equipment is for revolving shake sieve or air classification equipment.
The present invention has substantive distinguishing features and marked improvement, this preparation method is simple, cost is low, easily realize industrialization production, both overcome nano level metal particulate problem of oxidation, make the spherical in shape or subsphaeroidal structure of the powder that obtains again, good fluidity is suitable for hot-spraying techniquess such as plasma spraying, supersonic spray coating and detonation flame spraying.Utilize the roll surface coating of the large granular spherical metal ceramic nano composite granule of this kind prepared by the hot-spraying techniques preparation, have excellent wear-resistant, high temperature resistant, alumite liquid zinc corrosion ability, be 18～29 days duration of service on the continuous zinc/aluminium/aluminium zinc coating unit, reduce generation and maintenance cost, improved the aluminum-zinc alloy strip quality.
Embodiment
Content below in conjunction with method provides specific embodiment:
The invention provides the preparation technology of the metal ceramic nano composite spraying powder of three kinds of compositions, the phase composite of each embodiment is as shown in table 1.The preparation technology of each embodiment such as following table 1:
| Component per-cent (weight %) | Size-grade distribution (micron) | |||||
| TiB2 | Tungsten boride | The nanometer cobalt | Nanometer chromium | Rare earth | ||
| Embodiment 1 | 70 | 8 | 12 | 8 | 2 | 45～75 |
| Embodiment 2 | 65 | 10 | 14.5 | 9 | 1.5 | 45～75 |
| Embodiment 3 | 50 | 11 | 24 | 13 | 2 | 20～45 |
(1) carries out the preparation of the aqueous solution of nanometer cobalt, chromium.
Table 2
| Dispersion agent per-cent (%) | Deionization per-cent (%) | Ball-milling medium per-cent (%) | The ball milling time | |
| Embodiment 1 | 0.25 | 43 | 200 | 2 |
| Embodiment 2 | 0.35 | 36 | 200 | 3 |
| Embodiment 3 | 0.4 | 30 | 300 | 3 |
Remarks: all per-cents are weight ratio, expect admittedly that with mutually all of composition quality is a standard.
To be inert nanometre grade cobalt, chromium in ratio among the embodiment and deionized water, dispersant through finishing, surface, obtain the aqueous solution of finely disseminated nanometer cobalt, chromium by wet ball grinding.Its used wet ball grinding equipment is planetary ball mill, and ball-milling medium is the carbide ball, and the diameter of ball is between 5 millimeters～15 millimeters.Other each parameter of each embodiment is as shown in table 2.
(2) the compound colloidal preparation of metal-ceramic nano
The table 3 ball milling time
| After adding other solid phase | After adding binding agent | After adding defoamer | |
| Embodiment 1 | 2 hours | 4 hours | 15 |
| Embodiment 2 | 2.5 hour | 6 hours | 20 |
| Embodiment 3 | 4 hours | 8 hours | 30 |
At first, titanium diboride powder, tungsten boride powder and rare earth powder are joined in the above-mentioned aqueous solution in proportion, continuing with the rotating speed is that 150r/min carries out wet ball grinding, makes powder obtain abundant stably dispersing.Secondly, add binding agent, continuing with the rotating speed is that 150r/min carries out wet ball grinding.Thereafter adding defoamer, is the 150r/min wet ball grinding with the rotating speed, obtains stable, the compound colloid of finely disseminated water-base metal ceramic nano.With PVA etc. as binding agent, with propyl carbinol as defoamer.Table 3 and table 4 are respectively the correlation parameter of each embodiment.
Table 4
| PVA content (%) | Propyl carbinol content (%) | |
| Embodiment 1 | 1.0 | 0.3 |
| Embodiment 2 | 0.8 | 0.5 |
| Embodiment 3 | 0.8 | 0.5 |
Remarks: all per-cents are weight ratio, expect admittedly that with mutually all of composition quality is a standard.
(3) with water-base metal ceramic nano composite gel by method centrifugal or its mist projection granulating of press atomization granulation: centrifugal spraying.The atomizing granulating technology parameter of each embodiment is as shown in table 5.
Table 5
| Inlet temperature | Air outlet temperature | Flow | |
| Embodiment 1 | 310 | 110 | 4 |
| Embodiment 2 | 320 | 110 | 4 |
| Embodiment 3 | 340 | 115 | 5 |
(4) the inferior large granular spherical metal ceramic nano composite granule of the large granular spherical behind mist projection granulating body is carried out vacuum or the thermal treatment of protection gas.
Handle by the vacuum or the protection gas thermal treatment process of the large granular spherical metal ceramic nano powder for preparing behind the mist projection granulating being carried out corresponding measure; to remove organic composition and remaining moisture such as the dispersion agent that wherein has, binding agent, defoamer; prevent nano metal oxide; and eliminate wherein organic component and moisture; realize respectively the combining closely between the composition of large granular spherical large granular spherical metal ceramic nano composite granule granule interior, and keep the yardstick and the shape of large granular spherical submicron/fiber composite ceramics powder.Selected used Equipment for Heating Processing and protection gas are as shown in table 6.Selected heat treatment furnace is chamber type electric resistance furnace, and the protection gas that is adopted is hydrogen.The thermal treatment temp of embodiment 1, embodiment 2 and embodiment 3 is respectively between 900 ℃, 850 ℃, 800 ℃
(5) stage treatment of granulation powder
Will be by granulation powder process stage treatment through vacuum or protection gas disposal.Selected stage equipment is for revolving the sieve that shakes, selected sieve aperture is 20 microns, 45 microns and 75 microns three kinds, the vibrational frequency that is adopted is, all obtain two kinds of size ranges, the solid spheries or the large granular spherical metal ceramic nano composite spraying powder of subsphaeroidal structure powder by each embodiment of classification, particle size distribution is respectively 20～45 microns and 45～75 microns.
Metal-ceramic nano composite granule for three embodiment that provide adopts hot-spraying techniques, through preheating-sandblast pretreatment-spraying-mill processing-polished finish, finishes roll surface coating machining process.Above-mentioned three embodiment are sinking roller and the stable roller after spraying respectively, and by the experiment of on-site assessment repeatedly to each embodiment, its life-span examination is as shown in table 6.
Table 6
| Life span (my god) | Mean lifetime (my god) | The implementation result assessment | |
| Embodiment 1 | 18-22 | 20.7 | Generally |
| Embodiment 2 | 26-29 | 27 | Best |
| Embodiment 3 | 20-25 | 23 | Better |
The sinking roller of the existing cobalt tungsten carbide powder preparation of adopting reaches and is no more than 5 days the work-ing life of stablizing roller, the sinking roller of each embodiment and the existing cobalt tungsten carbide powder preparation of adopting and to stablize roller relative, life-span is improved significantly, produce aluminum-zinc alloy belt steel surface no significant defect, strip quality obviously improves.
Claims (10)
1, a kind of preparation method of large granular spherical metal ceramic nano composite granule, it is characterized in that, the elementary powder that is used for large granular spherical metal ceramic nano composite granule preparation forms and weight percent is: 50～70% TiB2s, 10～24% cobalts, 6～13% chromium powders, 5～11% tungsten borides, surplus are the rare earth powder, and TiB2, preparation process are as follows:
(1) aqueous solution of preparation nanometer cobalt, chromium;
(2) the compound colloid of preparation metal-ceramic nano;
(3) with water-base metal ceramic nano composite gel by centrifugal or press atomization granulation;
(4) the inferior large granular spherical metal ceramic nano composite granule of the large granular spherical behind the mist projection granulating is carried out vacuum or the thermal treatment of protection gas;
(5) stage treatment of granulation powder.
2, the preparation method of large granular spherical metal ceramic nano composite granule according to claim 1 is characterized in that, all between 0.5 micron to 1 micron, cobalt and chromium powder granularity are all less than 100 nanometers for the granularity of tungsten boride and rare earth powder.
3, the preparation method of large granular spherical metal ceramic nano composite granule according to claim 1 is characterized in that, described step (1) is specific as follows:
Will through finishing, surface be inert nanometre grade cobalt, chromium in proportion with deionized water, dispersant, obtain the aqueous solution of finely disseminated nanometer cobalt, chromium by wet ball grinding, with the A15 dispersion agent as dispersion medium, deionized water is as solvent, A15 content is that nanometer cobalt, chromium, TiB2, the native powder of wolfram varbide and elder generation formed are in proportion always expected 0.1～0.8% of content weight admittedly, and the deionized water quality is always expected 0.5～4: 1 of content admittedly for nanometer cobalt, chromium, TiB2, the native powder of wolfram varbide and elder generation formed in proportion.
4, the preparation method of large granular spherical metal ceramic nano composite granule according to claim 3, it is characterized in that, described wet ball grinding, adopt agate ball, alumina balls, zirconia ball or carbide ball as ball-milling medium, wherein the diameter of ball is between 5 millimeters～15 millimeters, and the quality of ball-milling medium is always expected 1～4: 1 of content admittedly for nanometer cobalt, chromium, TiB2, the native powder of wolfram varbide and elder generation formed in proportion.
5, according to the preparation method of claim 3 or 4 described large granular spherical metal ceramic nano composite granules, it is characterized in that, described wet ball grinding, its used wet ball grinding equipment is planetary ball mill, vibratory milling or agitating ball mill, rotating speed during wet ball grinding is 150r/min, and the ball milling time is 2～4 hours.
6, the preparation method of large granular spherical metal ceramic nano composite granule according to claim 1 is characterized in that, described step (2) is specific as follows:
At first, titanium diboride powder, tungsten boride powder and rare earth powder are joined in the above-mentioned aqueous solution in proportion, continuing with the rotating speed is 150r/min wet ball grinding 2～4 hours, makes powder obtain abundant stably dispersing; Secondly, add binding agent, continuing with the rotating speed is 150r/min wet ball grinding 4～8 hours; Thereafter adding defoamer, is 150r/min wet ball grinding 15～30 hours with the rotating speed, obtains stable, the compound colloid of finely disseminated water-base metal ceramic nano.
7, the preparation method of large granular spherical metal ceramic nano composite granule according to claim 6, it is characterized in that, described binding agent is with PVA or CMC, described defoamer is propyl carbinol or n-Octanol, the content of binding agent and defoamer be titanium diboride powder, tungsten boride powder and rare earth powder expect weight admittedly 0.5%～3% and 0.1%～0.5%.
8, the preparation method of large granular spherical metal ceramic nano composite granule according to claim 1 is characterized in that, described step (3) is specific as follows:
The method of its mist projection granulating is centrifugal spraying or press atomization, the processing parameter of mist projection granulating is: inlet temperature is between 300～350 ℃, air outlet temperature is between 110～120 ℃, flow according to the spray drying device regulation, metal-ceramic nano composite mortar flow is between 5～300kg/h, by mist projection granulating, preparing median size is 30～60 microns, the large granular spherical submicron/fiber composite ceramics powder of size distribution between 10～100 microns.
9, the preparation method of large granular spherical metal ceramic nano composite granule according to claim 1 is characterized in that, described step (4) is specific as follows:
Used Equipment for Heating Processing is selected well formula, chamber type electric resistance furnace or sintering oven or vacuum heat treatment furnace for use, and thermal treatment temp is between 400～900 ℃, and selected protection gas is a kind of in high-purity hydrogen, nitrogen or the argon gas.
10, the preparation method of large granular spherical metal ceramic nano composite granule according to claim 1 is characterized in that, described step (5) is specific as follows:
Will be by granulation powder process stage treatment through vacuum or protection gas disposal; obtain the large granular spherical metal ceramic nano composite spraying powder that particle size distribution is respectively 20～45 microns and 45～75 microns, selected stage equipment is for revolving shake sieve or air classification equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510110207 CN1793058A (en) | 2005-11-10 | 2005-11-10 | Process for preparing large particle spherical metal ceramic nano composite spraying powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510110207 CN1793058A (en) | 2005-11-10 | 2005-11-10 | Process for preparing large particle spherical metal ceramic nano composite spraying powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1793058A true CN1793058A (en) | 2006-06-28 |
Family
ID=36804723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510110207 Pending CN1793058A (en) | 2005-11-10 | 2005-11-10 | Process for preparing large particle spherical metal ceramic nano composite spraying powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1793058A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100423873C (en) * | 2006-09-22 | 2008-10-08 | 北京工业大学 | Preparation method of TiB2 nanometer micrometer structure feeding for hot spraying |
| CN102245717A (en) * | 2008-10-15 | 2011-11-16 | 拉夫伯勒大学 | Deformable granule production |
| CN102383030A (en) * | 2011-11-14 | 2012-03-21 | 江苏银宇模具材料有限公司 | Preparation process for nano strengthened wear-resistant die steel |
| CN106862551A (en) * | 2017-03-06 | 2017-06-20 | 自贡长城硬面材料有限公司 | A kind of preparation method of cermet spherolite |
| CN108264356A (en) * | 2018-03-06 | 2018-07-10 | 济南大学 | One kind is molded TiB for 3DP2The preparation method of composite ceramic material |
| CN108436077A (en) * | 2018-03-30 | 2018-08-24 | 河北工业大学 | A kind of addition nano-TiO2The preparation method of alloy powder |
| CN109485420A (en) * | 2019-01-15 | 2019-03-19 | 景德镇陶瓷大学 | A method of improving the wet forming and agglutinating property of ceramic nano-powder body |
| CN114394604A (en) * | 2022-01-20 | 2022-04-26 | 上海海事大学 | Preparation method of superhard spherical tungsten boride powder |
-
2005
- 2005-11-10 CN CN 200510110207 patent/CN1793058A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100423873C (en) * | 2006-09-22 | 2008-10-08 | 北京工业大学 | Preparation method of TiB2 nanometer micrometer structure feeding for hot spraying |
| CN102245717A (en) * | 2008-10-15 | 2011-11-16 | 拉夫伯勒大学 | Deformable granule production |
| CN102245717B (en) * | 2008-10-15 | 2014-07-09 | 拉夫伯勒大学 | Deformable granule production |
| CN102383030A (en) * | 2011-11-14 | 2012-03-21 | 江苏银宇模具材料有限公司 | Preparation process for nano strengthened wear-resistant die steel |
| CN106862551A (en) * | 2017-03-06 | 2017-06-20 | 自贡长城硬面材料有限公司 | A kind of preparation method of cermet spherolite |
| CN108264356A (en) * | 2018-03-06 | 2018-07-10 | 济南大学 | One kind is molded TiB for 3DP2The preparation method of composite ceramic material |
| CN108436077A (en) * | 2018-03-30 | 2018-08-24 | 河北工业大学 | A kind of addition nano-TiO2The preparation method of alloy powder |
| CN108436077B (en) * | 2018-03-30 | 2019-10-01 | 河北工业大学 | One kind being added with nano-TiO2Alloy powder preparation method |
| CN109485420A (en) * | 2019-01-15 | 2019-03-19 | 景德镇陶瓷大学 | A method of improving the wet forming and agglutinating property of ceramic nano-powder body |
| CN114394604A (en) * | 2022-01-20 | 2022-04-26 | 上海海事大学 | Preparation method of superhard spherical tungsten boride powder |
| CN114394604B (en) * | 2022-01-20 | 2024-04-02 | 上海海事大学 | Preparation method of superhard spherical tungsten boride powder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1793058A (en) | Process for preparing large particle spherical metal ceramic nano composite spraying powder | |
| CN101037771B (en) | Method for preparing TiC-TiB2 nano-micrometre multiple phase ceramic coating | |
| CN103484814B (en) | The preparation method of titanium boride base inorganic composite materials coating | |
| CN107354421B (en) | A kind of preparation method of graphene-copper-amorphous composite coating | |
| CN1962942A (en) | Process for in-situ formation of TiC/metal composite cladding layer controlled by plasma | |
| WO2015169132A1 (en) | Method for preparing wc-co powder used for thermal spraying | |
| Wu et al. | Structure and mechanical properties of ceramic coatings fabricated by plasma electrolytic oxidation on aluminized steel | |
| CN1865190A (en) | Zirconia/silicon carbide composite nano powder for hot spraying and its production method | |
| CN1202043C (en) | Prepn of large grain spherical submicron/nano composite fiber-ceramic powder | |
| CN1540028A (en) | Thermal spraying powder and method of forming thermal sprayed coating using same | |
| CN109023220A (en) | A kind of method that reaction and plasma spraying prepares Ti-SiC-C composite coating | |
| CN111041398A (en) | Method for enhancing tribological performance of nickel-based coating by using ceramic nanoparticles | |
| Chen et al. | Influence of feedstock and spraying parameters on the depositing efficiency and microhardness of plasma-sprayed zirconia coatings | |
| CN106048596A (en) | Method for preparing Ti2AlC phase ceramic coating through cold spraying in-situ formation | |
| CN110396002A (en) | A kind of preparation method of the high-temperature oxidation resistant non-oxidized substance of resistance to ablation base dense coating | |
| CN106756719A (en) | A kind of coupling coating with high-intensity high-tenacity and preparation method thereof | |
| CN1793048A (en) | Large granular spherical metal ceramic nano composite spraying powder | |
| CN107630184A (en) | A kind of method for preparing niobium silicide coating in niobium or niobium alloy surface | |
| CN112974799B (en) | Composite powder for preparing self-repairing coating, preparation method of composite powder, titanium-based wear-resistant self-repairing coating and preparation method of titanium-based wear-resistant self-repairing coating | |
| CN104032253B (en) | A kind of Ti-B-C-N ceramic coating and preparation method thereof | |
| CN111410201A (en) | Preparation method of nano-structure ytterbium silicate feed suitable for plasma spraying | |
| CN104372284A (en) | Preparation method of plasma sprayed TiN coating layer having relatively good hardness and toughness | |
| CN101050123A (en) | Method for preparing clad material of hard alloy in solidness phase of composite ceramic | |
| Zhu et al. | In-situ synthesis and microstructure of TiC–Fe36Ni composite coatings by reactive detonation-gun spraying | |
| US10047014B2 (en) | Plasma-sprayed tin coating having excellent hardness and toughness, the preparation method therefor, and a mold coated with said tin coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |