CN105728733A - Method for preparing nanometer Co-CeO2 composite powder through mechanical alloying - Google Patents
Method for preparing nanometer Co-CeO2 composite powder through mechanical alloying Download PDFInfo
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- CN105728733A CN105728733A CN201610106115.8A CN201610106115A CN105728733A CN 105728733 A CN105728733 A CN 105728733A CN 201610106115 A CN201610106115 A CN 201610106115A CN 105728733 A CN105728733 A CN 105728733A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/041—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by mechanical alloying, e.g. blending, milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
Abstract
The invention discloses a method for preparing nanometer Co-CeO2 composite powder through mechanical alloying. According to the method, Co powder and CeO2 powder are prepared at the mass ratio of 10:0.4; cemented carbide grinding balls 20-40 times of the total mass of the powder and a volatile organic solvent 1-3% of the total mass of the powder are added as ball-milling media; ball milling is conducted for 12-36 hours in a cemented carbide ball-milling tank with atmosphere protection or under a vacuum condition; the powder is subjected to standing for a certain period of time after ball milling is done; and the powder is taken out of a glove box after sufficient cooling and then the evenly distributed nanometer Co-CeO2 composite powder is obtained. The method has the characteristics of being uniform in rare earth oxide distribution and easy in preparing process. The obtained nanometer Co-CeO2 composite powder is high in quality performance and low in manufacturing cost.
Description
Technical field
The invention belongs to composite nano-powder preparing technical field, be specifically related to one mechanical alloying and prepare nanometer
Co- CeO2The method of composite powder.
Background technology
WC-Co series hard alloy is owing to having the excellent properties such as high-wearing feature, high rigidity, high intensity, high red hardness, extensively
It is applied to the fields such as metal-cutting machine tool, miniature graver cutter (bar), electronics industry (such as micro-brill), wood cutter.Research
Showing, the interpolation of rare earth oxide can improve the performance of WC-Co series hard alloy: one is that rare earth oxide can be distributed in crystal boundary
On, effectively stop crystal boundary migration and WC dissolving in Co, thus suppress the agglomeration of crystal grain；Two is can to purify in crystal boundary
Impurity, not only Binder Phase is played dispersion-strengthened action, moreover it is possible to reduce hard alloy sintering temperature.Therefore, the method is more come
More come into one's own, the most commonly used by mechanical mixing by WC powder, Co powder and the preparation side of rare earth oxide mix homogeneously
Method, the method has the disadvantage that owing to rare earth oxide addition is less so that it is be difficult to uniformly mix with WC powder and Co powder,
Make rare earth oxide skewness, sintering process there will be the phenomenon of local grain agglomeration, reduce product quality
Performance.CN201410184144.7 discloses one, and " WC-rare earth-Co is successively coated with the preparation side of composite hard alloy powder
Method ", it uses chemical activation liquid that WC powder body is carried out ultrasonic activation pretreatment the most at normal temperatures, is subsequently placed in rare earth oxide and hangs
In turbid liquid, after ultrasonic agitation one timing is asked, obtain being coated with the WC composite granule of rare earth oxide, then by electroless cobalt plating, obtain
WC-rare earth-Co is successively coated with composite hard alloy powder.But the method complex process, and processing procedure easily there is impurity residual
Stay.
Summary of the invention
Rare earth oxide is evenly distributed, prepared by the simple mechanical alloying of preparation technology to it is an object of the invention to provide one
Nano Co-CeO2The method of composite powder, to obtain the nano Co-CeO that capability and performance is good, cost of manufacture is low2Composite powder.
For realizing object above, nano Co-CeO is prepared in present invention one mechanical alloying2The behaviour of the method for composite powder
Make step as follows:
Step a: by Co powder and CeO2The proportions of powder 10:0.4 in mass ratio, puts in ball grinder；
Step b: in ball grinder, the volatile organic solvent of the 1-3% adding powder body gross mass makees ball-milling medium and powder body is total
The hard alloy abrading-ball of 20-40 times of quality；
Step c: carry out atmosphere process in ball grinder, starts ball milling, and Ball-milling Time is 12-36 hour, and ball milling stands after terminating,
In glove box, powder is taken out, it is thus achieved that equally distributed nano Co-CeO after powder and abrading-ball are sufficiently cool2Composite powder.
Described volatile organic solvent is dehydrated alcohol.
It is to be filled with noble gas in ball grinder that described atmosphere processes.
Described noble gas is the one in nitrogen or argon or both mixed gas.
It is evacuation in ball grinder that described atmosphere processes.
The Fisher particle size of described Co powder is 1 μm.
Described CeO2The purity of powder is more than 99.99%.
Described hard alloy abrading-ball is the sintered carbide ball of different size and ratio.
Described ball grinder uses hard alloy material.
Nano Co-CeO is prepared in present invention one mechanical alloying2The method of composite powder has the following characteristics that
1, ball-milling medium is dehydrated alcohol, prevents from occurring in ma process " cold welding " phenomenon.
2, abrading-ball is the sintered carbide ball of different size and ratio, to improve the composite effect of mechanical alloying.
3, ball grinder is hard alloy material, to reduce the ball grinder pollution to powder body in ma process.
4, the protective gas being filled with in ball grinder is nitrogen or argon, it is to avoid powder body generation oxygen in ma process
Change phenomenon.
Nano Co-CeO is prepared in above-mentioned one mechanical alloying2The method of composite powder can obtain equally distributed nanometer
Co-CeO2Composite powder, has the advantage that constant product quality is good, cost of manufacture is low.
Detailed description of the invention
Below in conjunction with detailed description of the invention, nano Co-CeO is prepared in present invention one mechanical alloying2The side of composite powder
Method is described in further detail.
Nano Co-CeO is prepared in present invention one mechanical alloying2The concrete operation step of the method for composite powder is:
By Co powder and CeO2The proportions of powder 10:0.4 in mass ratio, puts in hard alloy ball grinder, adds powder in ball grinder
The dehydrated alcohol of body gross mass 1-3% and the hard alloy abrading-ball of 20-40 times of powder body gross mass, protect there being inert gas atmosphere
Protect or under vacuum condition, ball milling 12-36 hour, ball milling terminate after stand, after powder and hard alloy abrading-ball are sufficiently cool
Glove box takes out powder, it is thus achieved that equally distributed nano Co-CeO2Composite powder.
Enumerating three below embodiment according to different parameters, wherein embodiment 2 is most preferred embodiment.
Embodiment 1: by Co powder and CeO2The proportions of powder 10:0.4 in mass ratio, puts in hard alloy ball grinder.
In hard alloy ball grinder, the ball-milling medium of addition powder body gross mass 1% and the hard alloy abrading-ball of 40 times, protect at nitrogen
Under, ball milling 12 hours, ball milling stands after terminating, and takes out powder after powder and hard alloy abrading-ball are sufficiently cool in glove box
End, it is thus achieved that equally distributed nano Co-CeO2Composite powder.
Embodiment 2: by Co powder and CeO2The proportions of powder 10:0.4 in mass ratio, puts in hard alloy ball grinder.
In hard alloy ball grinder, the ball-milling medium of addition powder body gross mass 2% and the hard alloy abrading-ball of 30 times, in argon shield
Under, ball milling 24 hours, ball milling stands after terminating, and takes out powder after powder and hard alloy abrading-ball are sufficiently cool in glove box
End, it is thus achieved that equally distributed nano Co-CeO2Composite powder.
Embodiment 3: by Co powder and CeO2The proportions of powder 10:0.4 in mass ratio, puts in hard alloy ball grinder.
In hard alloy ball grinder, the ball-milling medium of addition powder body gross mass 3% and the hard alloy abrading-ball of 20 times, at vacuum condition
Under, ball milling 36 hours, ball milling stands after terminating, and takes out powder after powder and hard alloy abrading-ball are sufficiently cool in glove box
End, it is thus achieved that equally distributed nano Co-CeO2Composite powder.
Claims (9)
1. prepare nano Co-CeO with mechanical alloying for one kind2The method of composite powder, is characterized in that: operating procedure is as follows:
Step a: by Co powder and CeO2The proportions of powder 10:0.4 in mass ratio, puts in ball grinder；
Step b: in ball grinder, the volatile organic solvent of the 1-3% adding powder body gross mass makees ball-milling medium and powder body is total
The hard alloy abrading-ball of 20-40 times of quality；
Step c: carry out atmosphere process in ball grinder, starts ball milling, and Ball-milling Time is 12-36 hour, and ball milling stands after terminating,
In glove box, powder is taken out, it is thus achieved that equally distributed nano Co-CeO after powder and abrading-ball are sufficiently cool2Composite powder.
2. nano Co-CeO is prepared in one mechanical alloying as claimed in claim 12The method of composite powder, is characterized in that: described
Volatile organic solvent is dehydrated alcohol.
3. nano Co-CeO is prepared in one mechanical alloying as claimed in claim 12The method of composite powder, is characterized in that: described
It is to be filled with noble gas in ball grinder that atmosphere processes.
4. nano Co-CeO is prepared in one mechanical alloying as claimed in claim 12The method of composite powder, is characterized in that: described
Noble gas is the one in nitrogen or argon or both mixed gas.
5. nano Co-CeO is prepared in one mechanical alloying as claimed in claim 12The method of composite powder, is characterized in that: described
It is evacuation in ball grinder that atmosphere processes.
6. nano Co-CeO is prepared in one mechanical alloying as claimed in claim 12The method of composite powder, is characterized in that: described
The Fisher particle size of Co powder is 1 μm.
7. nano Co-CeO is prepared in one mechanical alloying as claimed in claim 12The method of composite powder, is characterized in that: described
CeO2The purity of powder is more than 99.99%.
8. nano Co-CeO is prepared in one mechanical alloying as claimed in claim 12The method of composite powder, is characterized in that: described
Hard alloy abrading-ball is the sintered carbide ball of different size and ratio.
9. nano Co-CeO is prepared in one mechanical alloying as claimed in claim 12The method of composite powder, is characterized in that: described
Ball grinder uses hard alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610106115.8A CN105728733A (en) | 2016-02-26 | 2016-02-26 | Method for preparing nanometer Co-CeO2 composite powder through mechanical alloying |
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| CN201610106115.8A CN105728733A (en) | 2016-02-26 | 2016-02-26 | Method for preparing nanometer Co-CeO2 composite powder through mechanical alloying |
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| CN201610106115.8A Pending CN105728733A (en) | 2016-02-26 | 2016-02-26 | Method for preparing nanometer Co-CeO2 composite powder through mechanical alloying |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560697A (en) * | 2019-09-10 | 2019-12-13 | 沈阳拓普新材料有限公司 | preparation process for producing cobalt-base alloy powder metallurgy by simple substance ball milling method |
Citations (5)
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|---|---|---|---|---|
| EP1097769A1 (en) * | 1999-11-04 | 2001-05-09 | Institut für Festkörper- und Werkstofforschung Dresden e.V. | Method of manufacturing a preform or product from dispersion strengthened silver based alloys |
| CN1300243A (en) * | 1998-05-15 | 2001-06-20 | 先进纳诺技术有限公司 | Process for the production of ultrafine powders |
| CN1698957A (en) * | 2004-05-20 | 2005-11-23 | 上海师范大学 | Co-B/CeO2-SiO2 alloy catalyst, its preparation process and application |
| CN103752318A (en) * | 2013-12-26 | 2014-04-30 | 内蒙古工业大学 | Mesoporous Co/CeO2 catalyst for hydrogen preparation reaction by reforming ethanol vapor and preparation method thereof |
| CN104550981A (en) * | 2013-10-25 | 2015-04-29 | 青岛和德隆机械有限公司 | Method for preparing nanometer CeO2/Zn (cerium oxide/zinc) metal-based composite material in zinc galvanizing layer |
-
2016
- 2016-02-26 CN CN201610106115.8A patent/CN105728733A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300243A (en) * | 1998-05-15 | 2001-06-20 | 先进纳诺技术有限公司 | Process for the production of ultrafine powders |
| EP1097769A1 (en) * | 1999-11-04 | 2001-05-09 | Institut für Festkörper- und Werkstofforschung Dresden e.V. | Method of manufacturing a preform or product from dispersion strengthened silver based alloys |
| CN1698957A (en) * | 2004-05-20 | 2005-11-23 | 上海师范大学 | Co-B/CeO2-SiO2 alloy catalyst, its preparation process and application |
| CN104550981A (en) * | 2013-10-25 | 2015-04-29 | 青岛和德隆机械有限公司 | Method for preparing nanometer CeO2/Zn (cerium oxide/zinc) metal-based composite material in zinc galvanizing layer |
| CN103752318A (en) * | 2013-12-26 | 2014-04-30 | 内蒙古工业大学 | Mesoporous Co/CeO2 catalyst for hydrogen preparation reaction by reforming ethanol vapor and preparation method thereof |
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| 张凤林等: "高能球磨制备纳米WC-Co复合粉末工艺的优化", 《广东有色金属学报》 * |
| 张泉: "轻稀土氧化物（La2O3，CeO2）对高能球磨制备纳米Co基催化材料的影响研究", 《中国优秀硕士学位论文全文数据库（硕士） 工程科技Ⅰ辑》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560697A (en) * | 2019-09-10 | 2019-12-13 | 沈阳拓普新材料有限公司 | preparation process for producing cobalt-base alloy powder metallurgy by simple substance ball milling method |
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