CN108500281A - Spherical tantalum, niobium and tantalum-niobium alloy powder, and preparation method thereof and its purposes in 3D printing and medical instrument - Google Patents
Spherical tantalum, niobium and tantalum-niobium alloy powder, and preparation method thereof and its purposes in 3D printing and medical instrument Download PDFInfo
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- CN108500281A CN108500281A CN201810413885.6A CN201810413885A CN108500281A CN 108500281 A CN108500281 A CN 108500281A CN 201810413885 A CN201810413885 A CN 201810413885A CN 108500281 A CN108500281 A CN 108500281A
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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
- B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
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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
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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
- B22F1/14—Treatment of metallic powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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Abstract
The present invention relates to a kind of spherical tantalum, niobium and tantalum-niobium alloy powder, and preparation method thereof and its purposes in 3D printing and medical instrument.Relating more specifically to a kind of high-purity, spherical powder such as powder of tantalum, niobium or tantalum-niobium alloy, particle size range is 25 μm 180 μm, preferably 35 165 μm, it includes：O less than 1500ppm, the C less than 15ppm, the N less than 150ppm, the Fe less than 10ppm.
Description
Technical field
The present invention relates to a kind of spherical tantalum, niobium or tantalum-niobium alloy powder, preparation method and its 3D printings and Medical treatment devices
Purposes in tool.
Background technology
Tantalum, niobium and tantalum-niobium alloy powder used in manufacture 3D printing part and medical instrument need to have high-purity, epigranular,
The features such as good sphericity.The tantalum powder particle shape of prior art is complicated, there is stone block structure, slice structure and spongelike structure, table
Face is coarse；And the sphericity and size distribution of its difference cause tantalum powder mobility of particle, mouldability to be deteriorated, and limit these powder
Purposes, especially limit its purposes in manufacturing printed product.Particularly, the tantalum powder of prior art also has consistency
Not high defect affects every mechanical property of printout.
Chinese patent CN87101648A provides a kind of spherical or surface spheroidization high pressure tantalum powder and reparation technology.It should
Invention uses plasma process, so that tantalum powder impurity while is volatilized during nodularization, to make the electrical property of product be changed
It is kind.
Chinese patent CN101439403A provides a kind of powder for preparing induction plasma capacitor level nano tantalum raw material
Earlier stage treatment process, which includes the following steps：It is 2-10 μm of tantalum powder as raw material to use granularity prepared by sodium reduction；
The invention can continuously carry out capacitor level nano and prepared by sub-micron tantalum powder, handled by nodularization, screening and classification, make raw material
At spherical shape, powder size control accounts for 90% or more in 2-5 μm of powder.
What both prior arts were directed to is all Ta powder used in capacitor, and the requirement to sphericity, purity etc. is very low.
Chinese patent CN101837463A provides a kind of method that high-frequency plasma prepares minute globular powdered nickel.With gold
It is raw material to belong to the hydroxide of nickel or subcarbonate, and carrying out hydrogen reduction using high frequency plasma body technology prepares minute spherical
Nickel powder.The invention is characterized in that using hydroxide or subcarbonate for raw material, during plasma deoxidization, not only
Nickel powder granular size and pattern are easy to control, and technological process is short.However, the particle very little that the prior art obtains, only has
There is the size of 50-100nm.Moreover, it will be apparent to those skilled in the art that nickel powder and valve metal powder such as tantalum powder, niobium powder and tantalum niobium
The physicochemical properties of alloy powder are very different.
Those skilled in the art also know that the fusing points such as tantalum, niobium and tantalum-niobium alloy are very high, such as the fusing point of tantalum is up to 2996
DEG C, the technological temperature in previous nodularization, method of purification is extremely difficult to the fusing point.
Remaining also has some patents to be directed to the minute spherical powder prepared by high-frequency plasma, but still is unsatisfactory for 3D
The requirement of printing and medical instrument for high-purity, big granularity and hole is few, consistency is high tantalum, niobium, tantalum-niobium alloy metal powder.
Invention content
The purpose of the present invention is to provide a kind of spherical tantalum, niobium or tantalum-niobium alloy powder and preparation method thereof.
Specifically, the present invention provides a kind of high-purity, spherical tantalum, niobium or tantalum-niobium alloy powder, and particle size range is 25 μm-
180 μm, preferably 35-165 μm, it includes：Less than the O of 1500ppm, less than the C of 15ppm, less than the N of 150ppm, and/or low
In the Fe of 10ppm.The powder preferably meets 3D printing and medical instrument and the tantalum, niobium, tantalum niobium of high-purity, big granularity is closed
The requirement of golden metal powder.
For the powder, 90% or more granularity is between 45 μm -150 μm, and more preferable 95% or more
Granularity between 45 μm -150 μm, more preferred 98% or more granularity is between 45 μm -150 μm.
Alternatively, in a preferred embodiment, for the powder, 85% or more granularity is in 50 μ
Between m-120 μm.In a more preferred embodiment, 90% or more granularity is between 50 μm -120 μm.It is real in more excellent plus choosing
It applies in scheme, 95% or more granularity is between 50 μm -120 μm.
The invention further relates to purposes of the powder in 3D printing and medical instrument.
The present invention also provides a kind of methods preparing above-mentioned powder, include the following steps：
1) tantalum, niobium or tantalum-niobium alloy powder are provided as raw material, the powder preferably has 4N (i.e. 99.99%) or more
Purity；
2) powder raw material is classified, choosing has 60 mesh to 500 mesh, and preferably 100 mesh to 400 mesh are more preferably chosen
150 mesh to the granularity of 325 mesh powder；
3) powder after classification is carried out by nodularization by the nodularization equipment of high-frequency thermal plasma.
Alternatively, step 1) and 2) can be completed at the same time, i.e., directly provide the powder with above-mentioned purity and granularity
The nodularization equipment of the plasma has cyclone separator, preferably selects the powder work by the cyclone collection
For finished powder.
It can be obtained by way of artificial screening it should be understood that granularity is 60 mesh to 500 mesh powders, it is simple and effective.
In step 3), by the nodularization equipment of high-frequency thermal plasma by the powder-processed balling-up sprills after classification,
It is preferred that carrying out in the following way：Powder after classification is heated to melt or gasify, it is then rapid cooling to cure or deposit,
To obtain spherical powder particle.With the gradually fusing of powder, the particle of melting forms spherical shape under the action of surface tension
Drop, and rapid cooling and solidifying at very high temperatures, ultimately form spheric granules.
Preferably, it is cooled down by way of being passed through cooling gas.
It should be understood that hot plasma has the characteristics that temperature is high, energy density is big, it can be by raw material powder in irregular shape
It is last to heat and fusing or gasification rapidly.Moreover, plasma apparatus is inherently associated with the fast feature of cooling velocity.
Inventor is surprisingly it has been found that hot plasma spheroidizing process can effectively improve by the physics of processing powder
And chemical characteristic, it is a kind of efficiently method with economic processing dusty material.Its advantage is mainly manifested in the following aspects：
One is by high-temperature fusion and can be quickly cooled down and prepare spheric granules.The second is it is volatile to remove some by high temperature
Impurity and some substances that can be reacted with atmosphere, to improve the purity of powder.The third is the powder BET prepared compares table
Area can be controlled in 0.1-2m2In/g range.Especially it was unexpectedly determined that the technique can also substantially eliminate hole, hence it is evident that
Improve powder compactness.
It is illustrated by taking the induction plasma powder synthesis system of Canadian Tekna Plasma Systems Inc. as an example.Equipment
Title：Induction plasma nodularization system；Model：PL-35；Manufacturer：Canadian Tekna；Technical parameter：Maximum power
Vacuum, H can be used in 100KW2, the multiple atmospheres such as He, Ar, be suitble to metal, the spheroidising of ceramics and its composite powder.The dress
Set includes mainly hot plasma power supply, hot plasma generator, powder-supply system, reactor, material-receiving system and water supply, confession
Electricity, air supply system etc..Each component part of system i.e. connect each other and can individually dismantle, in this way convenient for pinpoint the problems in time
Fragile component is replaced, the maintenance of equipment is also allowed for, reduces operating cost, improves safety.Frequency is 4MHz, the logical argon gas in inside
(Ar), inside can be cooled down with water flowing.
Raw material used herein can be to sell the trade mark for example, for tantalum powder purchased from Ningxia east Tan Ye groups
It is illustrated for the tantalum powder of FTW60.After induction plasma carries out powder-processed, powder can be collected 3 positions：When
The bottom of reactor；Second is that in cyclone separator bottom；Third, being collected in vacuum glove box.By mesh analysis, size distribution, sweep
Electronic Speculum and Powder Recovery rate are retouched to characterize the treatment effect and efficiency of powder.
Description of the drawings
Fig. 1 shows stereoscan photograph raw materials used in embodiment 1 (× 200)；
Fig. 2 shows the stereoscan photograph (× 200) of products obtained therefrom in embodiment 1；With
Fig. 3 shows the stereoscan photograph (× 500) of products obtained therefrom in embodiment 1.
Specific implementation mode
In order to further appreciate that the present invention, embodiment of the present invention is described with reference to embodiment and subordinate list, but
It should be appreciated that these descriptions are only the feature and advantage further illustrated the present invention, rather than to the claims in the present invention model
The limitation enclosed.
In the present invention, when indicating the granularity of powder with mesh number, "+" or "-" number before mesh number indicate " logical respectively
But " or the sieve of " passing through " described mesh number.For example, " -60 mesh " indicates the sieve by 60 mesh, and "+200 mesh " indicates to lead to not
Cross the sieve of 200 mesh.
The analytical equipment and model of involved parameters are as shown in table 1 in the present invention：
| Analysis project | Analytical equipment title | Specifications and models |
| O、N | Oxygen-nitrogen analyzer | LECO CS-436 |
| Fe | Direct-reading spectrometer | GV-5 |
| C | Carbon and sulfur analytical instrument | LECO CS-406 |
| FSSS | Average granulometry instrument | WLP-202 |
In order to further appreciate that the present invention, embodiment of the present invention is described with reference to embodiment and subordinate list, but
It should be appreciated that these descriptions are only the feature and advantage further illustrated the present invention, rather than to the claims in the present invention model
The limitation enclosed.
What is used in following embodiment 1-2 is all the trade mark for the sodium reduction tantalum powder of FTW60, major impurity content：
The Fe of N, 10ppm of C, 50ppm of O, 12ppm of 1300ppm.Granule size：Respectively 60 mesh to 500 mesh (are used for embodiment
1), 60 mesh to 325 mesh (being used for embodiment 2).
What is used in embodiment 3-4 is all conventional metallurgical grade niobium powder, major impurity content：O, 32ppm's of 1460ppm
C, the Fe of N, 20ppm of 60ppm.Granule size：Respectively 60 mesh to 400 mesh (being used for embodiment 3), 60 mesh to 325 mesh (are used for
Embodiment 4).
Using tantalum-niobium alloy powder (78.26% tantalum and 21.86% niobium), major impurity content in embodiment 5：
The Fe of N, 10ppm of C, 40ppm of O, 12ppm of 1000ppm.The powder is tantalum niobium by a certain percentage by electron-beam smelting work
What skill was produced.Granule size：60 mesh to 325 mesh.
Embodiment 1：First, it is the sodium reduction tantalum powder of FTW60 as raw material, major impurity content to use the trade mark：1300ppm
O, 12ppm C, 50ppm N, 10ppm Fe.Classification processing is carried out to sodium reduction tantalum powder.Sieve takes granularity in 60 mesh to 500
Tantalum powder between mesh.Then nodularization is carried out in induction plasma powder synthesis system and purification is tested.Shield gas flow rate is
40Lmin-1, outer layer gas flow 80Lmin-1(argon gas)+30Lmin-1(hydrogen), chamber pressure 90KMPa, plasma work(
Rate 70KW, cooling gas flow are 1800Lmin-1.The powder of cyclone collector is taken to be analyzed.
Embodiment 2：
First, the raw material of use is the same as embodiment 1.Classification processing is carried out to sodium reduction tantalum powder.Sieve takes granularity in 60 mesh to 325
Tantalum powder between mesh.Then nodularization is carried out in induction plasma powder synthesis system and purification is tested.Shield gas flow rate is
40Lmin-1, outer layer gas flow 90Lmin-1(argon gas)+30Lmin-1(hydrogen), chamber pressure 90KMPa, plasma work(
Rate 70KW, cooling gas flow are 1800Lmin-1.The powder of cyclone collector is taken to be analyzed.
Embodiment 3：
First, using conventional metallurgical grade niobium powder, major impurity content：The N of C, 60ppm of O, 32ppm of 1460ppm,
The Fe of 20ppm.Classification processing is carried out to the powder.Sieve takes granularity in 60 mesh to the tantalum powder between 400 mesh.Then induction etc. from
Nodularization is carried out in sub- powder synthesis system and purification is tested.Shield gas flow rate is 40Lmin-1, outer layer gas flow 90Lmin-1
(argon gas)+30Lmin-1(hydrogen), chamber pressure 90KMPa, 70 KW of plasma power, cooling gas flow are
1800Lmin-1.The powder of cyclone collector is taken to be analyzed.
Embodiment 4：
First, the raw material of use is the same as embodiment 3.Classification processing is carried out to the powder.Sieve take granularity 60 mesh to 325 mesh it
Between tantalum powder.Then nodularization is carried out in induction plasma powder synthesis system and purification is tested.Shield gas flow rate is
40Lmin-1, outer layer gas flow 90Lmin-1(argon gas)+30Lmin-1(hydrogen), chamber pressure 90KMPa, plasma work(
70 KW of rate, cooling gas flow are 1800Lmin-1.The powder of cyclone collector is taken to be analyzed.
Embodiment 5：
First, using tantalum-niobium alloy powder (58.26% tantalum and 41.86% niobium), major impurity content：The O of 1000ppm,
The Fe of N, 10ppm of C, 40ppm of 12ppm.The powder is that tantalum niobium is produced by electron beam melting processes according to the above ratio.Often
Sieve takes granularity in 60 mesh to the powder between 325 mesh after rule technique hydrogenates powder processed.Then in induction plasma powder synthesis system
Upper progress nodularization and purification are tested.Shield gas flow rate is 40Lmin-1, outer layer gas flow 90Lmin-1(argon gas)+30Lmin-1(hydrogen), chamber pressure 90KMPa, plasma power 70KW, cooling gas flow are 1800Lmin-1.Take cyclone collection
The powder of device is analyzed.
As a result such as the following table 2：
As shown in the figs, accompanying the present application, after induction plasma nodularization powder particle shape from irregularly becoming spherical.
In particular, the product of embodiment 1 all has perfect sphericity under 200 times and 500 times of amplification factor.
Moreover, the hole inside powder particle disappears substantially, the FSSS grain sizes of powder is made to increase considerably by induction etc.
For sample after ion nodularization and purification in addition to O, N gaseous impurity, remaining influences the metal of 3D printing part and nonmetallic inclusion (such as
Fe, C etc.) it is obtained for reduction.
The product obtained in embodiment is used for 3D printing part, has fully met requirement.
Claims (10)
1. a kind of high-purity, spherical powder such as powder of tantalum, niobium or tantalum-niobium alloy, particle size range is 25 μm -180 μm, excellent
35-165 μm is selected, it includes：O less than 1500ppm, the C less than 15ppm, less than the N of 150ppm, and/or less than 10ppm's
Fe。
2. the powder of claim 1, wherein 90% or more granularity is between 45 μm -150 μm, more preferable 95% or more granularity
Between 45 μm -150 μm, more preferred 98% or more granularity is between 45 μm -150 μm.
3. the powder of claim 1, wherein 85% or more granularity, between 50 μm -120 μm, preferably 90% or more granularity exists
50 μm -120 μm, more preferred 95% or more granularity is between 50 μm -120 μm.
4. the powder of any one of claim 1-3, consistency is within the scope of 50-70%, preferably 55-65%, more preferable 58-
65%, porosity is within the scope of 20-50%, preferably 30-40%, more preferable 35-40%.
5. the powder of any one of claim 1-4, the purposes in 3D printing and medical instrument.
6. a kind of method for the powder preparing high-purity, spherical tantalum, niobium or tantalum-niobium alloy, includes the following steps：
1) tantalum, niobium or tantalum-niobium alloy powder are provided as raw material, the powder is preferably pure with 4N (i.e. 99.99%) or more
Degree；
2) powder raw material is classified and (is preferably classified by way of artificial screening), choosing has 60 mesh to 500 mesh,
It is preferred that 100 mesh to 400 mesh, more preferably choose 150 mesh to the powder of the granularity of 325 mesh；
3) powder after classification is carried out by nodularization by the nodularization equipment of high-frequency thermal plasma.
7. a kind of method for the powder preparing high-purity, spherical tantalum, niobium or tantalum-niobium alloy, includes the following steps：
1) tantalum, niobium or tantalum-niobium alloy powder are provided as raw material, the powder preferably purity with 4N (i.e. 99.99%) or more
With 60 mesh to 500 mesh, preferably 100 mesh to 400 mesh, the granularity of more preferable 150 mesh to 325 mesh；With
2) powder after classification is carried out by nodularization by the nodularization equipment of high-frequency thermal plasma.
8. the method for claim 6 or 7, wherein the nodularization equipment of the plasma have cyclone separator, select by the whirlwind
The powder of separator collection is as finished powder.
9. the method for claim 6 or 7, wherein in the step 3) of claim 6 or the step 2) of claim 7, pass through by
Powder after classification is heated to melt or gasify, then rapid cooling to cure or deposit, to obtain spherical powder particle.
10. by the powder obtained according to the method for any one of claim 6-9 and its in 3D printing and medical instrument
Purposes.
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| CN201810413885.6A CN108500281A (en) | 2018-05-03 | 2018-05-03 | Spherical tantalum, niobium and tantalum-niobium alloy powder, and preparation method thereof and its purposes in 3D printing and medical instrument |
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| CN201810413885.6A CN108500281A (en) | 2018-05-03 | 2018-05-03 | Spherical tantalum, niobium and tantalum-niobium alloy powder, and preparation method thereof and its purposes in 3D printing and medical instrument |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110947976A (en) * | 2019-11-06 | 2020-04-03 | 中航迈特粉冶科技（北京）有限公司 | Low-oxygen spherical tantalum powder and preparation method thereof |
| CN112404446A (en) * | 2020-11-06 | 2021-02-26 | 金川集团股份有限公司 | Production method of high-purity rhenium powder |
| US10943744B2 (en) | 2018-03-05 | 2021-03-09 | Global Advanced Metals Usa, Inc. | Anodes containing spherical powder and capacitors |
| CN113165066A (en) * | 2018-12-12 | 2021-07-23 | 全球先进金属美国股份有限公司 | Spherical niobium alloy powder, product containing same, and method for producing same |
| CN113814414A (en) * | 2021-09-28 | 2021-12-21 | 长沙新材料产业研究院有限公司 | Tantalum-niobium alloy part and preparation method thereof |
| CN113843415A (en) * | 2021-09-28 | 2021-12-28 | 长沙新材料产业研究院有限公司 | Tantalum-niobium alloy powder and preparation method thereof |
| CN114653959A (en) * | 2022-03-30 | 2022-06-24 | 中南大学 | Spherical tantalum powder, preparation thereof and application thereof in 3D printing |
| CN115846681A (en) * | 2022-11-25 | 2023-03-28 | 西北有色金属研究院 | Preparation method of tantalum metal material with excellent mechanical property |
| US11691197B2 (en) | 2018-03-05 | 2023-07-04 | Global Advanced Metals Usa, Inc. | Spherical tantalum powder, products containing the same, and methods of making the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101648A (en) * | 1987-02-27 | 1987-08-19 | 江西九江有色金属冶炼厂 | Spheroidization tantalum powder and reparation technology thereof |
| JP2004091843A (en) * | 2002-08-30 | 2004-03-25 | Hitachi Metals Ltd | Manufacturing method of high purity high melting point metal powder |
| CN101439403A (en) * | 2008-12-25 | 2009-05-27 | 中国兵器工业第五二研究所 | Earlier stage treatment process of raw material powder for preparing induction plasma capacitor level nano tantalum powder |
| CN102847934A (en) * | 2012-09-28 | 2013-01-02 | 泰克科技(苏州)有限公司 | Method for realizing heat treatment of capacitor tantalum powder through heat sources |
| CN104084594A (en) * | 2014-06-05 | 2014-10-08 | 中国科学院福建物质结构研究所 | Method for preparing microfine spherical niobium powder |
-
2018
- 2018-05-03 CN CN201810413885.6A patent/CN108500281A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101648A (en) * | 1987-02-27 | 1987-08-19 | 江西九江有色金属冶炼厂 | Spheroidization tantalum powder and reparation technology thereof |
| JP2004091843A (en) * | 2002-08-30 | 2004-03-25 | Hitachi Metals Ltd | Manufacturing method of high purity high melting point metal powder |
| CN101439403A (en) * | 2008-12-25 | 2009-05-27 | 中国兵器工业第五二研究所 | Earlier stage treatment process of raw material powder for preparing induction plasma capacitor level nano tantalum powder |
| CN102847934A (en) * | 2012-09-28 | 2013-01-02 | 泰克科技(苏州)有限公司 | Method for realizing heat treatment of capacitor tantalum powder through heat sources |
| CN104084594A (en) * | 2014-06-05 | 2014-10-08 | 中国科学院福建物质结构研究所 | Method for preparing microfine spherical niobium powder |
Non-Patent Citations (1)
| Title |
|---|
| 王建军等: "射频等离子体制备球形铌粉", 《射频等离子体制备球形铌粉》 * |
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| US11691197B2 (en) | 2018-03-05 | 2023-07-04 | Global Advanced Metals Usa, Inc. | Spherical tantalum powder, products containing the same, and methods of making the same |
| US10943744B2 (en) | 2018-03-05 | 2021-03-09 | Global Advanced Metals Usa, Inc. | Anodes containing spherical powder and capacitors |
| JP2022513817A (en) * | 2018-12-12 | 2022-02-09 | グローバル アドバンスト メタルズ ユー．エス．エー．，インコーポレイティド | Spherical niobium alloy powder, products containing it, and methods for producing them |
| CN113165066A (en) * | 2018-12-12 | 2021-07-23 | 全球先进金属美国股份有限公司 | Spherical niobium alloy powder, product containing same, and method for producing same |
| JP7250374B2 (en) | 2018-12-12 | 2023-04-03 | グローバル アドバンスト メタルズ ユー．エス．エー．，インコーポレイティド | Spherical niobium alloy powder, product containing same, and method for producing same |
| CN110947976A (en) * | 2019-11-06 | 2020-04-03 | 中航迈特粉冶科技（北京）有限公司 | Low-oxygen spherical tantalum powder and preparation method thereof |
| CN112404446A (en) * | 2020-11-06 | 2021-02-26 | 金川集团股份有限公司 | Production method of high-purity rhenium powder |
| CN113814414A (en) * | 2021-09-28 | 2021-12-21 | 长沙新材料产业研究院有限公司 | Tantalum-niobium alloy part and preparation method thereof |
| CN113843415A (en) * | 2021-09-28 | 2021-12-28 | 长沙新材料产业研究院有限公司 | Tantalum-niobium alloy powder and preparation method thereof |
| CN113843415B (en) * | 2021-09-28 | 2023-10-31 | 航天科工(长沙)新材料研究院有限公司 | Tantalum-niobium alloy powder and preparation method thereof |
| CN114653959A (en) * | 2022-03-30 | 2022-06-24 | 中南大学 | Spherical tantalum powder, preparation thereof and application thereof in 3D printing |
| CN115846681A (en) * | 2022-11-25 | 2023-03-28 | 西北有色金属研究院 | Preparation method of tantalum metal material with excellent mechanical property |
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