WO2006022212A1 - 酸化物分散型合金の製造方法 - Google Patents
酸化物分散型合金の製造方法 Download PDFInfo
- Publication number
- WO2006022212A1 WO2006022212A1 PCT/JP2005/015188 JP2005015188W WO2006022212A1 WO 2006022212 A1 WO2006022212 A1 WO 2006022212A1 JP 2005015188 W JP2005015188 W JP 2005015188W WO 2006022212 A1 WO2006022212 A1 WO 2006022212A1
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- WO
- WIPO (PCT)
- Prior art keywords
- alloy
- oxide
- dispersed
- metal
- water
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1084—Alloys containing non-metals by mechanical alloying (blending, milling)
-
- 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
- B22F1/145—Chemical treatment, e.g. passivation or decarburisation
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0021—Matrix based on noble metals, Cu or alloys thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/04—Alloys based on a platinum group metal
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Definitions
- the present invention relates to a method for producing an oxide dispersion type alloy that is a dispersion strengthened type alloy. Specifically, the present invention relates to a method for producing an oxide dispersion type alloy in which fine dispersed particles are uniformly dispersed.
- Dispersion strengthening is a well-known method for strengthening metallic materials, in which dispersed particles composed of other metal carbides, nitrides, and oxides are dispersed in a metal that serves as a matrix, and the action of the dispersed particles. This improves the mechanical properties of the parent phase metal.
- oxide-dispersed alloys there are many types of oxide-dispersed alloys to which metal oxide is applied as dispersed particles, and their applications are diverse.
- an alloy in which oxide particles of metal such as zirconium are dispersed in platinum, which is a matrix metal, is called reinforced platinum, and is a material in a high temperature region due to its improved high temperature creep strength, such as a constituent material of glass manufacturing equipment. It is used as
- an alloy powder in which an oxide of an additive metal is dispersed in a matrix metal which is mostly based on powder metallurgy, is produced, and this is sintered.
- the material is solidified by molding and then caulked as necessary.
- the matrix metal powder and the additive metal oxide powder are introduced into a high-energy ball mill such as an attritor and stirred to obtain a matrix metal.
- a high-energy ball mill such as an attritor and stirred to obtain a matrix metal.
- an oxide powder is mechanically alloyed (mechanical alloy) to form an alloy powder in which the oxide is dispersed in the matrix metal.
- Patent Document 1 JP-A-8-134511
- a dispersion strengthened alloy it is important to adjust the amount of dispersed particles and the dispersion state so that the strengthening mechanism can be sufficiently exhibited while maintaining properties other than strength.
- an ideal alloy is obtained by uniformly dispersing fine dispersed particles in a highly dispersed state while minimizing the amount of dispersed particles. For example, if the number of oxide particles is increased more than necessary, not only the properties such as weldability but also the strength properties may be adversely affected.
- the present invention has been made based on the background described above, and is a method for producing an oxide-dispersed alloy! An alloy in which oxide particles are dispersed in a more ideal state. It is an object to provide a method capable of producing the product.
- the inventors of the present invention have studied to solve the above problems, and as a basis of a method for introducing an oxide into the matrix metal, the latter method of the above prior art, the matrix metal and the additive metal, A study was conducted on the basis of the method of oxidizing the additive metal in the alloy using the alloy powder or alloy wire. Emphasis is placed on the uniform dispersion of the acid oxide. And high temperature heating As a method of allowing the acid-oxidation reaction of the added metal in the alloy to proceed without being carried out, the alloy is stirred in a high-tech energy ball mill in water, and the alloy is mixed with water (the oxygen constituting the water).
- Powders or wires that are stirred in a high energy ball mill are subjected to high energy impact and repeatedly pulverized (divided), compressed, and adhered.
- a new surface is exposed, but it can be said that this new surface is active and easily oxidized. Therefore, by setting the atmosphere of stirring to water, the exposed new surface of the alloy is oxidized by water.
- the present invention is a method for producing an oxide-dispersed alloy in which dispersed particles made of a metal oxide of one or more additive metals are dispersed in a matrix metal, which comprises the following steps: It is a method of including.
- an alloy powder or alloy wire made of a parent phase metal and an additive metal is produced.
- an alloy powder manufacturing method an atomizing method (gas atomizing, water atomizing) using a molten alloy of a predetermined composition as a raw material, a rotating electrode method using an alloy lump manufactured by melting and forming as a raw material, and the like can be applied.
- the preferred method is the atomization method. In other words, it is possible to obtain a powder that maintains the alloy state without oxidizing the added metal.
- the alloy powder produced here preferably has a particle size of 300 ⁇ m or less. This is because if the particle size is increased, a long time is required for the subsequent acidification step by the attritor.
- the alloy wire is manufactured by drawing and drawing a melt-forged alloy lump. You may cut
- the alloy powder or alloy wire is energized with water together with high energy. It introduce
- a high energy ball mill is a device in which a steel ball or ceramic ball as a grinding medium is filled in a container, and a stirring blade is further arranged. .
- the constituent material of the high energy ball mill needs to be selected in consideration of contamination by the constituent material of the high energy ball mill by high energy stirring.
- ceramics are preferred, and zirconia is particularly preferred. This is because mixing of constituent materials is difficult to occur. Even if it is mixed, it has the least effect on material properties.
- the diameter of the grinding medium is preferably 1 to: LOmm. If it is smaller than this, it is necessary to rotate the stirring blade at a high speed in order to compensate for the decrease in the pulverization force, and it becomes difficult to separate the powder and the pulverization medium after the oxidation treatment. If it is larger than this, the torque required for rotation will increase excessively, and damage to the container and the stirring blade will easily occur.
- the filling amount of the grinding medium is preferably set with 50% of the container volume as a guideline, but harmful effects are unlikely to occur unless this value is excessively exceeded.
- the water to be introduced into the high energy ball mill together with the alloy is preferably a high-purity water, particularly ultrapure water.
- oxidation treatment is performed using water that contains impurities, the impurities adhere to the powder and are accompanied by the oxide dispersion type alloy that is produced. This is because it may cause gas generation and reduce its strength.
- the atmosphere in the container may be air, but is preferably an oxygen atmosphere. This is to prevent nitrogen in the air from being contained in the material.
- the alloy powder subjected to the oxidation treatment by the high energy ball mill can be formed into a Balta-like alloy by performing a forming and solidifying treatment.
- This molding and solidification treatment is preferably a method of sintering while applying pressure as in hot pressing.
- the hot pressing is preferably performed at a temperature of 700 to 1300 ° C. and a pressing pressure of lOMPa or higher.
- the hot press atmosphere is preferably a vacuum atmosphere.
- the alloy powder may be preliminarily sintered.
- the density of the alloy after the forming and solidifying treatment can be improved by a forging cage.
- plastic molding such as rolling, extrusion, and drawing can be performed in order to form into a predetermined shape, and heat treatment may be performed for these plastic processing.
- the dispersion particles are oxidized by stirring in a high-energy ball mill.
- an oxidation treatment in which the alloy powder is further heated in an oxidizing atmosphere may be performed.
- the conditions for the oxidation treatment by heating are preferably 700 to 1300 ° C. This is because, at a temperature lower than this, the progress of oxidation is slow, and thus a long treatment is required, and at a temperature higher than this, excessive growth of the acid dispersion particles occurs.
- the method according to the present invention includes a metal having a free energy of formation of oxides higher than the standard free energy of formation of water as a matrix metal, and a standard of free energy of formation of oxides as an additive metal of water. This is effective when producing an oxide dispersion alloy in combination with a metal lower than the free energy of formation.
- the dispersed particles are formed by an oxidation reaction with water, in order to selectively cause oxidation of the added metal in the alloy powder, the above relationship is satisfied. Preferred.
- examples of the matrix metal include gold, silver, platinum, palladium, iridium, rhodium, and ruthenium.
- Additive metals include titanium, zirconium, hafnium, scandium, yttrium, magnesium, calcium, strontium, norium, anodium, silicon, lanthanum, cerium, prasedium, neodymium, samarium, europium, gadolinium, and terbium. , Disprosicum and hormyum.
- the matrix metal may be one kind of metal force, but may be an alloy of two or more kinds of metals.
- the additive metal is not limited to one type, and it is possible to produce a platinum alloy in which two or more types of additive metal oxides are dispersed. In this case, if a plurality of kinds of additive metals have the above relationship, their oxidation reaction can easily occur.
- Fig. 1 is a SEM image of platinum-zircoua alloy powder produced by the atomization method in the present embodiment.
- FIG. 2 is an SEM image of the alloy powder after stirring with an attritor in this embodiment.
- FIG. 3 is a photograph showing dispersed particles obtained by dissolving the platinum alloy produced in this embodiment after aqua regia dissolution and then filtering.
- FIG. 4 is a photograph showing dispersed particles obtained by filtering a conventional platinum alloy after dissolving it in aqua regia.
- FIG. 5 is a view showing a sample shape subjected to a creep rupture test of the present embodiment.
- an oxide-dispersed alloy in which zirconium oxide (zircoua) particles are dispersed in a white metal that is a matrix metal is manufactured.
- a platinum-0.3 wt% zirconium alloy was produced by vacuum melting, and the molten metal was gas atomized in an argon atmosphere to produce platinum-zirconium alloy powder.
- the atomization conditions were a spray temperature of 2000 ° C and a gas pressure of 40 kPa.
- the average particle size of the alloy powder at this time was about 40 / zm.
- Figure 1 shows the SEM image of this alloy powder. As can be seen from Fig. 1, the alloy powder produced here is a nearly spherical powder.
- the alloy powder was taken out, 1603 g of which was filled in a die, and pre-sintered by heating at 1200 ° C for 1 hour in an atmosphere of 1.5 X 10 " 2 Pa. After sintering The alloy has dimensions of 40mm x 40mm x 135mm and density 7. The density was 34.6%.
- the pre-sintered alloy was formed and solidified by hot pressing. At this time, the press temperature was 1200 ° C, and the press pressure was 6.5 tons. The atmosphere was a vacuum atmosphere of 1.5 X 10 _2 Pa and the press time was 1 hour. As a result, an alloy compact having a size of 40.34 mm ⁇ 40.45 mm ⁇ 60.53 mm, a density of 16.23 gZcm 3 , and a density of 75.6% was obtained.
- the molded body for further improving the density was hot forged at a temperature of 1300 ° C.
- the alloy dimensions after forging were 65mm x 65mm x 18mm, and the density was about 100%.
- this alloy was cold-rolled to a thickness of 4 mm, annealed by heat treatment (1250 ° C. ⁇ 30 min), and further cold-rolled to a thickness of 0.8 mm to obtain a platinum-zirconium dispersed alloy plate.
- the base metal for confirming the particle size and dispersion state of the dispersed particles is immersed in aqua regia (temperature 80 ° C) to dissolve the platinum as a base material, and then the dispersed particles Was filtered and the surface was observed.
- Figure 3 shows the results.
- Figure 4 shows the results of the same treatment for a conventional platinum / zircoua dispersion alloy (Tanaka Kikinzoku Kogyo Co., Ltd.).
- FIG. 3 is compared with FIG. 4, and the force inferred that the particle diameter of the zirconia particles of the platinum alloy according to this embodiment of FIG. 3 is 0.02 m or less.
- the zirconia in the conventional platinum alloy of FIG. The particle size is 0.2 m.
- the average particle distance of the platinum alloy according to this embodiment was 0.190 m.
- the average particle spacing of the conventional platinum alloy was estimated to be 1.05 m.
- the platinum alloy (plate thickness 0.8 mm) produced in the present embodiment was press-cured to produce two creep test samples shown in FIG. Then, a creep rupture test was performed under the conditions of 1400 ° C and 20 MPa, and the rupture strength was measured. As a result, both of the two samples were strong without breaking even after 350 hours. Industrial applicability
- an oxide-dispersed alloy having an ideal dispersion state in which a minimum amount of finely dispersed particles are uniformly dispersed.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE602005014614T DE602005014614D1 (de) | 2004-08-23 | 2005-08-22 | Verfahren zur herstellung einer dispergiertes oxid enthaltenden legierung |
US10/582,536 US7776131B2 (en) | 2004-08-23 | 2005-08-22 | Manufacturing method for oxide dispersed alloy |
EP05772607A EP1712645B1 (en) | 2004-08-23 | 2005-08-22 | Process for producing alloy containing dispersed oxide |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004242538A JP4280215B2 (ja) | 2004-08-23 | 2004-08-23 | 酸化物分散型合金の製造方法 |
JP2004-242538 | 2004-08-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006022212A1 true WO2006022212A1 (ja) | 2006-03-02 |
Family
ID=35967424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/015188 WO2006022212A1 (ja) | 2004-08-23 | 2005-08-22 | 酸化物分散型合金の製造方法 |
Country Status (9)
Country | Link |
---|---|
US (1) | US7776131B2 (ja) |
EP (1) | EP1712645B1 (ja) |
JP (1) | JP4280215B2 (ja) |
KR (1) | KR100829648B1 (ja) |
CN (1) | CN100434551C (ja) |
DE (1) | DE602005014614D1 (ja) |
RU (1) | RU2333269C2 (ja) |
TW (1) | TWI284574B (ja) |
WO (1) | WO2006022212A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116213702A (zh) * | 2022-12-27 | 2023-06-06 | 云航时代(重庆)科技有限公司 | 一种氧化物弥散强化铂基粉体及其制备方法 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4916284B2 (ja) * | 2006-11-17 | 2012-04-11 | 住友軽金属工業株式会社 | 分散強化合金の製造方法 |
JP2008266031A (ja) * | 2007-04-16 | 2008-11-06 | Ohara Inc | 光学ガラスの製造方法 |
WO2009086723A1 (zh) * | 2008-01-04 | 2009-07-16 | Wuxi Yingtepai Metal Product Co., Ltd. | 氧化锆氧化钇弥散强化钯金合金及其生产方法 |
JP4965696B2 (ja) * | 2010-10-21 | 2012-07-04 | 田中貴金属工業株式会社 | 酸化物分散強化型白金合金の製造方法 |
WO2012124846A1 (ko) * | 2011-03-17 | 2012-09-20 | 희성금속 주식회사 | 산화물 분산강화형 백금-로듐 합금의 제조방법 |
RU2525967C2 (ru) * | 2012-12-24 | 2014-08-20 | Михаил Юрьевич Новомейский | Способ модифицирования литых сплавов |
CN103060586B (zh) * | 2013-01-15 | 2014-09-17 | 北京科技大学 | 一种复杂形状铌基ods合金的制备方法 |
WO2015034387A1 (ru) * | 2013-09-06 | 2015-03-12 | Открытое акционерное общество "Красноярский завод цветных металлов имени В.Н. Гулидова" | Способ получения композиционных материалов на основе платины или платинородиевых сплавов |
CN106984809A (zh) * | 2017-04-17 | 2017-07-28 | 东莞市华航新马金属有限公司 | 一种钛金属件的粉末冶金模压生产工艺 |
WO2020173909A1 (en) | 2019-02-26 | 2020-09-03 | Umicore Ag & Co. Kg | Catalyst materials comprising nanoparticles on a carrier and methods for their production |
CN111334694B (zh) * | 2020-04-14 | 2021-10-15 | 燕山大学 | 一种原生纳米弥散相改性镁合金中lpso结构的方法 |
AU2021329906A1 (en) | 2020-08-18 | 2023-04-27 | Enviro Metals, LLC | Metal refinement |
EP3971311B1 (de) * | 2020-09-17 | 2022-07-06 | Heraeus Deutschland GmbH & Co. KG | Verbesserte, dispersionsgehärtete edelmetalllegierung |
GB2610378B (en) * | 2021-08-20 | 2023-11-01 | Cookson Precious Metals Ltd | Additive manufacturing of platinum group metal oxide dispersion strengthened alloys |
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JPH05195002A (ja) * | 1992-01-14 | 1993-08-03 | Kobe Steel Ltd | 酸化物分散強化型耐熱合金およびその製造方法 |
JPH0931567A (ja) * | 1995-07-14 | 1997-02-04 | Suzuki Motor Corp | 高強度アルミニウム合金の製造方法 |
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CA909036A (en) * | 1970-01-27 | 1972-09-05 | A. W. Fustukian David | Metal dispersoid powder compositions |
US3709667A (en) * | 1971-01-19 | 1973-01-09 | Johnson Matthey Co Ltd | Dispersion strengthening of platinum group metals and alloys |
US4315777A (en) * | 1979-08-07 | 1982-02-16 | Scm Corporation | Metal mass adapted for internal oxidation to generate dispersion strengthening |
US5007476A (en) * | 1988-11-10 | 1991-04-16 | Lanxide Technology Company, Lp | Method of forming metal matrix composite bodies by utilizing a crushed polycrystalline oxidation reaction product as a filler, and products produced thereby |
DE69327826T2 (de) * | 1992-04-17 | 2000-10-12 | Owens Corning, Toledo | Dispersionsgehärtete legierungen |
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-
2004
- 2004-08-23 JP JP2004242538A patent/JP4280215B2/ja not_active Expired - Lifetime
-
2005
- 2005-08-19 TW TW094128365A patent/TWI284574B/zh active
- 2005-08-22 US US10/582,536 patent/US7776131B2/en active Active
- 2005-08-22 CN CNB200580001750XA patent/CN100434551C/zh active Active
- 2005-08-22 WO PCT/JP2005/015188 patent/WO2006022212A1/ja active Application Filing
- 2005-08-22 DE DE602005014614T patent/DE602005014614D1/de active Active
- 2005-08-22 EP EP05772607A patent/EP1712645B1/en active Active
- 2005-08-22 KR KR1020067015704A patent/KR100829648B1/ko active IP Right Grant
- 2005-08-22 RU RU2006126341/02A patent/RU2333269C2/ru active
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JPH05195002A (ja) * | 1992-01-14 | 1993-08-03 | Kobe Steel Ltd | 酸化物分散強化型耐熱合金およびその製造方法 |
JPH0931567A (ja) * | 1995-07-14 | 1997-02-04 | Suzuki Motor Corp | 高強度アルミニウム合金の製造方法 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116213702A (zh) * | 2022-12-27 | 2023-06-06 | 云航时代(重庆)科技有限公司 | 一种氧化物弥散强化铂基粉体及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
CN100434551C (zh) | 2008-11-19 |
RU2006126341A (ru) | 2008-01-27 |
KR20060135734A (ko) | 2006-12-29 |
TWI284574B (en) | 2007-08-01 |
US7776131B2 (en) | 2010-08-17 |
JP4280215B2 (ja) | 2009-06-17 |
CN1906316A (zh) | 2007-01-31 |
TW200613078A (en) | 2006-05-01 |
EP1712645A1 (en) | 2006-10-18 |
KR100829648B1 (ko) | 2008-05-16 |
JP2006057164A (ja) | 2006-03-02 |
US20080279711A1 (en) | 2008-11-13 |
EP1712645B1 (en) | 2009-05-27 |
DE602005014614D1 (de) | 2009-07-09 |
RU2333269C2 (ru) | 2008-09-10 |
EP1712645A4 (en) | 2008-02-13 |
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