WO2005053885A1 - 粒子径が揃った金属微粉末の製造方法 - Google Patents
粒子径が揃った金属微粉末の製造方法 Download PDFInfo
- Publication number
- WO2005053885A1 WO2005053885A1 PCT/JP2004/017791 JP2004017791W WO2005053885A1 WO 2005053885 A1 WO2005053885 A1 WO 2005053885A1 JP 2004017791 W JP2004017791 W JP 2004017791W WO 2005053885 A1 WO2005053885 A1 WO 2005053885A1
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- Prior art keywords
- metal
- fine
- particles
- palladium
- layer
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Classifications
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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
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
-
- 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
- B22F1/052—Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
-
- 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
- B22F1/17—Metallic particles coated with 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
Definitions
- the present invention relates to a method for producing a metal fine powder having a uniform particle diameter.
- the present invention relates to a method for producing a fine metal powder having a uniform particle size, which has a metal layer having a palladium, noradium-silver alloy, platinum, silver, or nickel force as a surface layer.
- Fine powder such as palladium, palladium-silver alloy, platinum, or silver is an essential metal material for forming an electrode of a capacitor, an electrode of a sensor, or an electrode of an IC circuit.
- the nickel fine particles are useful as a conductive bonding agent for electrically bonding electrodes such as a solid oxide fuel cell and a steam electrolysis cell to other structural members.
- Patent Document 1 JP-A-5-334911
- An object of the present invention is to provide a method for producing a metal fine powder having a uniform particle diameter, which is particularly useful for producing a noble metal electrode layer.
- the present invention provides an aqueous solution containing salts of two metals having different oxidation-reduction potentials from each other.
- aqueous solution containing salts of two metals having different oxidation-reduction potentials from each other.
- a reducing agent in the presence of a protective colloid to first precipitate fine particles of a metal having a low oxidation-reduction potential, and then to increase the oxidation-reduction potential around the metal fine particles.
- a method for producing a metal fine powder having a uniform particle diameter which comprises sequentially performing a step of bringing a third metal salt and a reducing agent into contact with a colloid solution containing particles.
- the present invention also provides a colloid solution containing a double-layer particle having a low oxidation-reduction potential and a metal layer having a high oxidation-reduction potential around the fine metal particles.
- a method for producing a fine metal powder having a uniform particle diameter which comprises sequentially performing a step of bringing a salt and a reducing agent into contact.
- the present invention also provides a core particle made of any of silver, copper, and tin, a palladium layer formed around the core particle, and palladium formed around the palladium layer, a palladium-silver alloy, platinum, There are also metal fine particles comprising a coating layer made of silver or nickel.
- the present invention also resides in a fine metal powder comprising an aggregate of the above-described fine metal particles of the present invention.
- the average particle size of the metal fine powder is preferably in the range of 0.1 to 0.9 m, and particularly preferably in the range of 0.2 to 0.8 / z m.
- the normal distribution ⁇ of the particle diameter of the fine metal powder of the present invention is preferably 2.0 or less, more preferably 1.9 or less.
- the ratio be 1.8 or less.
- the metal fine powder of the present invention is mixed with a binder such as ethyl cellulose and a spreading agent such as terbineol to form a conductive paste which can be advantageously used for forming a conductive layer such as an electrode by forming a paste.
- a binder such as ethyl cellulose
- a spreading agent such as terbineol
- the present invention further provides a step of providing an aqueous solution containing salts of two metals having different oxidation potentials from each other; by bringing a reducing agent into contact with the aqueous solution in the presence of a protective colloid, When the oxidation-reduction potential is low, fine metal particles are precipitated, and then, a metal having a high oxidation reduction potential is deposited around the fine particles of the metal.
- a method of generating double-layer particles whose surroundings have a high oxidation-reduction potential and are coated with a metal layer.
- a metal having a low oxidation-reduction potential is a final step of the method for producing a metal fine powder of the present invention.
- the colloid containing the double layer particles is used.
- a method in which a solution and a reducing agent are mixed in advance, and then a third metal salt solution is added to the mixed solution while mixing the mixed solution (hereinafter, may be referred to as a reverse addition method).
- Uses a method in which a reducing agent and a solution of a third metal salt are simultaneously added to a colloid solution containing bilayer particles while stirring the solution hereinafter, sometimes referred to as a simultaneous addition method). Is preferred.
- the metal having a low oxidation-reduction potential is preferably silver, copper or tin, and the metal having a high oxidation-reduction potential is preferably palladium.
- the third metal is a metal such as radium, radium 'silver alloy, platinum, silver or nickel.
- a metal fine powder having a uniform particle diameter can be obtained by a simple method.
- the metal fine powder of the present invention can be used as a conductive paste, and is particularly useful as a material for forming a thin electrode layer.
- the method of the present invention for producing a metal fine powder having a uniform particle size is a first step of preparing an aqueous solution containing salts of two metals having different oxidation-reduction potentials; By contacting in the presence of a loyd, first, fine particles of a metal having a low oxidation-reduction potential are precipitated, and then, a metal having a high oxidation-reduction potential is deposited around the fine particles of the metal, whereby a metal having a low oxidation-reduction potential is reduced.
- the third step is to contact the salt with the reducing agent.
- a salt of a metal having a low oxidation-reduction potential is first reduced by bringing a reducing agent into contact with an aqueous solution containing a salt of two metals having different oxidation potentials and a protective colloid.
- the metal forming the surface layer is deposited around the double-layer metal particles by utilizing the reduction of the metal salt, and the particles are coated by using a method of coating.
- This is a method for producing metal fine powder having a uniform diameter.
- the colloid solution suppresses the growth and aggregation of the precipitated or formed metal fine particles, and enables the generation of fine and highly dispersed metal fine powder.
- an aqueous solution containing salts of two metals having different oxidation potentials is prepared.
- a combination of two metals having different oxidation-reduction potentials include silver, copper or tin as a metal having a relatively low oxidation-reduction potential, and palladium as a metal having a relatively high oxidation-reduction potential.
- a combination of copper as a metal having a relatively low oxidation-reduction potential and silver as a metal having a relatively high oxidation-reduction potential can be used. That is, the level of the oxidation reduction potential in the combination of the two metals is relative.
- a water-soluble salt is used. However, the water solubility does not necessarily have to be high.
- sulfates, nitrates, hydrochlorides, carbonates, organic acids, or various complex salts are used.
- the ratio of the salt of a metal having a relatively low oxidation-reduction potential to the salt of a metal having a relatively high oxidation-reduction potential is generally in the range of 1:10 to 1: 100000 (former: latter) in terms of the amount of metal, and is preferable. Ranges from 1: 100 to 1: 10000.
- a reducing agent is brought into contact with the aqueous metal salt solution in the presence of a protective colloid.
- the temperature during this contact operation is not particularly limited, but an environmental temperature in the range of 10 to 40 ° C is preferred, and a temperature in the range of 20 to 30 ° C is particularly preferred.
- the protective colloid has a function of efficiently preventing aggregation of fine metal particles precipitated by reduction of a metal salt.
- protective colloids having such a function various substances such as water-soluble cellulose derivatives such as carboxymethyl cellulose (CMC), proteins such as gelatin, and synthetic polymer compounds such as polybutyl alcohol are known. I have.
- the reducing agent it is preferable to use an organic reducing agent such as hydrazine hydrate.
- the metal salt aqueous solution in the presence of the protective colloid By contacting the metal salt aqueous solution in the presence of the protective colloid with a reducing agent, first, the oxidation-reduction potential is reduced, and the metal salt is reduced to precipitate metal fine particles having a uniform particle diameter. A salt of a metal having a high reduction potential is deposited around the fine metal particles previously deposited, and the growth thereof is suppressed to produce double-layer metal particles having a uniform particle diameter. Next, a salt of a third metal forming a surface layer and a reducing agent are brought into contact with the above-mentioned colloid solution containing the double-layered metal particles, so that the surface of the double-layered metal particles has a third metal. Is deposited and coated.
- the temperature during the contact operation is not particularly limited, but an environmental temperature in the range of 10 to 40 ° C is preferable, and a temperature in the range of 20 to 30 ° C is particularly preferable.
- the third metal include palladium, palladium-silver alloy, platinum, silver, and nickel.
- salts of these metals sulfates, nitrates, hydrochlorides, carbonates, organic acids, or various complex salts are used.
- the reducing agent it is preferable to use an organic reducing agent such as the above-mentioned hydrazine hydrate.
- a colloid solution containing double-layer particles and a reducing agent are mixed in advance, and then a third metal salt solution is added to the mixed solution while mixing the mixed solution (reverse addition method).
- the fine metal powder obtained by the production method of the present invention has a fine particle nucleus (center layer) made of a metal having a relatively low oxidation-reduction potential, and the oxidation-reduction potential formed around the center layer is relatively low. It has a three-layer structure consisting of an intermediate layer with a high metal strength and a surface layer formed around the intermediate layer.
- the fine particle nuclei formed first are precipitated by reduction of the metal salt, and the fine particle nuclei are formed. Growth and agglomeration are suppressed by the presence of the protective colloid, and therefore, are formed as a group of fine particles having a uniform particle size in the aqueous solution.
- the presence of the protective colloid also suppresses the growth of the intermediate layer formed on the surface of the core of the fine particle nuclei of such a group of fine particle nuclei having a uniform particle diameter, and the aggregation of the generated double-layer metal particles. As a result, double-layer metal particles having a uniform particle diameter can be obtained. Furthermore, when a surface metal layer is formed on the surface of the double-layer metal particles, the particle diameter of the finally formed triple-layer metal particles (metal fine powder) is very small because of the presence of the protective colloid. It will be aligned.
- the surface layer was made of a metal fine powder of silver-palladium alloy (average particle size: 0. (1) Preparation of palladium salt aqueous solution
- CMC carboxymethyl cellulose
- the silver salt and palladium salt aqueous solutions obtained in the above (5) were added little by little to the above-adjusted reaction mother liquor over 60 minutes, taking care not to exceed a liquid temperature of 0 ° C. After the addition was completed, the reaction solution was stirred for 90 minutes to mature the reaction.
- FIG. 1 shows an electron micrograph image of the obtained fine metal powder.
- the average particle size of this fine metal powder was 0.
- the particle sizes were very uniform.
- the surface layer of each fine particle of the metal fine powder also had a silver-palladium alloy force.
- Example 1 Using a palladium salt aqueous solution, a silver salt aqueous solution, and a protective colloid obtained by the same method as in Example 1, a palladium Z silver double layer particle dispersion was obtained by the method described in Example 1.
- Hydrazine hydrate was added to 100 mL of water to obtain 500 mL of a hydrazine hydrate aqueous solution.
- Fig. 2 shows an electron micrograph image of the obtained fine metal powder.
- the average particle size of this metal fine powder was 0. As is clear from FIG. 2, the particle sizes were very uniform.
- the surface layer of each fine particle of the metal fine powder was made of palladium metal.
- Example 2 The same operation as in Example 2 was carried out except that the amount of the palladium Z silver double layer particle dispersion liquid was changed to 100 mL in the production of the fine metal powder of palladium as the surface layer of (4) in Example 2, and FIG.
- the surface layer shown as an electron micrograph image, also became a nodule force, and an average particle size of 0.8 ⁇ m, yielding a fine metal powder with a very uniform particle size.
- Cu (NO) copper nitrate
- ammonia water concentrated ammonia
- CMC carboxymethyl cellulose
- Hydrazine hydrate was added to 100 mL of water to obtain 500 mL of a hydrazine hydrate aqueous solution.
- Fig. 4 shows an electron micrograph image of the obtained fine metal powder.
- the average particle size of this metal fine powder was 21 and, as is apparent from FIG. 4, the particle sizes were very uniform.
- the surface layer of each fine particle of the metal fine powder was made of nickel metal.
- a palladium salt aqueous solution, a silver salt aqueous solution, and a protected colloid obtained by the same method as in Example 1.
- a palladium Z silver double layer particle dispersion was obtained by the method described in Example 1.
- Fig. 5 shows an electron micrograph image of the obtained fine metal powder.
- the average particle diameter of this metal fine powder was 0.
- the particle diameter was very uniform.
- the surface layer of each fine particle of the metal fine powder was a platinum metal force.
- step (4) the same operation as in Example 5 was carried out except that the amount of addition of the palladium Z silver double layer particle dispersion was changed to 100 mL, to obtain a fine metal powder.
- Fig. 6 shows an electron micrograph image of the obtained fine metal powder. The average particle size of this metal fine powder was 0.54 ⁇ , and as is clear from FIG. 6, the particle sizes were very uniform.
- the surface layer of each fine particle of the metal fine powder was a platinum metal force.
- Figure 7 shows the particle distribution of this fine metal powder. Normal distribution is 50 0 / ⁇ ⁇ or 0. 54 / zm, was normal distribution sigma I or 1.76.
- step (4) the same operation as in Example 5 was performed, except that the addition amount of the palladium Z silver double layer particle dispersion was changed to 50 mL, to obtain a fine metal powder.
- Fine metal powder obtained Fig. 8 shows an electron micrograph image of the sample. The average particle size of this metal fine powder was 0. As is clear from FIG. 8, the particle sizes were very uniform. The surface layer of each fine particle of the metal fine powder also had platinum metal power.
- Example 5 (2) The platinum salt aqueous solution obtained in Example 5 (2) and the hydrazine hydrate aqueous solution obtained in Example 5 (3) were mixed, and after the mixing was completed, the solution temperature was adjusted to 30 to 40 ° C. The stirring was continued for 1.5 hours. The resulting fine platinum powder was collected by filtration and dried.
- Fig. 9 shows an electron micrograph image of the obtained platinum fine powder
- Fig. 10 shows the particle distribution. The normal distribution 50% of this platinum fine powder was 3. and the normal distribution ⁇ was 2.06.
- a conductive paste was prepared using the platinum fine metal powder (platinum-coated metal fine powder) having the surface layer obtained in each of Examples 5 and 7 and Comparative Example 1 under the following conditions.
- Inorganic component Z ethyl cellulose Z terbineol 85Z2Z13 (weight ratio)
- Conductive paste 1 The platinum-coated metal fine powder of Comparative Example 1 was used.
- Conductive paste 2 Use the platinum-coated metal fine powder of Example 7 (average particle diameter 0.8 m).
- Conductive paste 3 Use the platinum-coated metal fine powder of Example 5 (average particle diameter 0.4 ⁇ )
- Conductive paste 4 The platinum-coated metal fine powder of Example 7 (average particle diameter 0.8 m) and the platinum-coated metal fine powder of Example 5 (average particle diameter 0.4 m) were mixed at a ratio of 9: 1 (weight ratio). ) (Use for close packing in paste).
- the conductive paste was printed on a ceramic substrate by screen printing and fired at 1550 ° C for 2 hours to obtain an electrode layer having a thickness of about 15 m. 4) Resistance value of electrode layer
- Electrode layer formed from conductive paste 2 40 ⁇ mQ-cm
- FIG. 1 is a view showing an electron micrograph image of a fine particle powder (average particle diameter: 0.4 m) obtained by coating palladium-Z silver double layer particles with a palladium-silver alloy obtained in Example 1. .
- FIG. 2 is a view showing an electron micrograph image of a fine particle powder (average particle diameter: 0.4 m) obtained by coating palladium Z silver double layer particles obtained with Example 2 with palladium.
- FIG. 3 is a view showing an electron micrograph image of fine particle powder (average particle diameter: 0.8 m) obtained by coating palladium Z silver double layer particles with palladium metal, obtained in Example 3.
- FIG. 4 shows an electron micrograph image of fine particle powder (average particle diameter: 0.2-0.3 m) obtained by coating silver Z copper double layer particles with nickel metal, obtained in Example 4.
- FIG. 4 shows an electron micrograph image of fine particle powder (average particle diameter: 0.2-0.3 m) obtained by coating silver Z copper double layer particles with nickel metal, obtained in Example 4.
- FIG. 5 is a view showing an electron micrograph image of fine particle powder (average particle diameter: 0.4 m) obtained by coating noradium Z silver double layer particles with platinum obtained in Example 5.
- FIG. 6 is a view showing an electron micrograph image of a fine particle powder (average particle diameter: 0.54 m) obtained by coating noradium Z silver double layer particles obtained with Example 6 with platinum.
- FIG. 7 is a diagram showing the particle size distribution of fine particle powder obtained by coating noradium Z silver double layer particles obtained with Example 6 with platinum.
- FIG. 8 is a view showing an electron micrograph image of fine particle powder (average particle diameter: 0.8 m) obtained by coating noradium Z silver double layer particles obtained with Example 7 with platinum.
- FIG. 9 is a view showing an electron micrograph image of the platinum fine powder obtained in Comparative Example 1.
- FIG. 10 is a graph showing the particle size distribution of the fine platinum powder obtained in Comparative Example 1.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04819831A EP1702701B1 (en) | 2003-12-01 | 2004-11-30 | Process for producing metal micropowder having particle diameter uniformalized |
US10/581,084 US20070114499A1 (en) | 2003-12-01 | 2004-11-30 | Process for producing metal micropowder having particle diameter uniformalized |
JP2005515931A JP4861701B2 (ja) | 2003-12-01 | 2004-11-30 | 粒子径が揃った金属微粉末の製造方法 |
AT04819831T ATE428521T1 (de) | 2003-12-01 | 2004-11-30 | Verfahren zur herstellung von metallmikropulver mit gleichförmig gemachtem teilchendurchmesser |
DE602004020673T DE602004020673D1 (de) | 2003-12-01 | 2004-11-30 | Verfahren zur herstellung von metallmikropulver mit gleichförmig gemachtem teilchendurchmesser |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003-401521 | 2003-12-01 | ||
JP2003401521 | 2003-12-01 |
Publications (1)
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WO2005053885A1 true WO2005053885A1 (ja) | 2005-06-16 |
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Family Applications (1)
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PCT/JP2004/017791 WO2005053885A1 (ja) | 2003-12-01 | 2004-11-30 | 粒子径が揃った金属微粉末の製造方法 |
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US (1) | US20070114499A1 (ja) |
EP (1) | EP1702701B1 (ja) |
JP (1) | JP4861701B2 (ja) |
KR (1) | KR100999330B1 (ja) |
CN (1) | CN100563878C (ja) |
AT (1) | ATE428521T1 (ja) |
DE (1) | DE602004020673D1 (ja) |
WO (1) | WO2005053885A1 (ja) |
Cited By (7)
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JP2007134291A (ja) * | 2005-11-14 | 2007-05-31 | Shinroku Kawakado | 導電ペースト及び導電性粉末 |
JP2007138250A (ja) * | 2005-11-18 | 2007-06-07 | Mitsubishi Materials Corp | 銀粒子の製造方法及び得られた該銀粒子を含有する銀粒子含有組成物並びにその用途 |
JP2007138291A (ja) * | 2005-10-20 | 2007-06-07 | Sumitomo Metal Mining Co Ltd | ニッケル粉末およびその製造方法 |
JP2008138266A (ja) * | 2006-12-04 | 2008-06-19 | Mitsubishi Materials Corp | ハンダ粉末及び該粉末を用いたハンダ用ペースト |
JP2009293126A (ja) * | 2008-06-05 | 2009-12-17 | Xerox Corp | コア−シェル金属ナノ粒子を形成する方法 |
JP2010242179A (ja) * | 2009-04-07 | 2010-10-28 | Noritake Co Ltd | 合金微粒子およびその製造と利用 |
JP2013094836A (ja) * | 2011-11-02 | 2013-05-20 | Mitsubishi Materials Corp | プリコート用ハンダペースト及びその製造方法 |
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DE102006029021A1 (de) * | 2006-06-14 | 2007-12-20 | Siemens Ag | Nanopartikel und Verfahren zu dessen Herstellung |
CN104985192A (zh) * | 2014-01-02 | 2015-10-21 | 天津大学 | Ni/Fe双金属面心立方晶体纳米颗粒的制备方法 |
CN104001934A (zh) * | 2014-05-26 | 2014-08-27 | 沈阳化工大学 | 一种分散纳米铁颗粒制备方法 |
JP6645337B2 (ja) * | 2016-04-20 | 2020-02-14 | 株式会社オートネットワーク技術研究所 | 接続端子および接続端子対 |
CN114505793A (zh) * | 2022-01-06 | 2022-05-17 | 郑州市钻石精密制造有限公司 | 一种由不同粒度的金属粉末组成的珩磨条金属结合剂及其制作方法 |
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2004
- 2004-11-30 AT AT04819831T patent/ATE428521T1/de not_active IP Right Cessation
- 2004-11-30 CN CNB2004800412294A patent/CN100563878C/zh not_active Expired - Fee Related
- 2004-11-30 EP EP04819831A patent/EP1702701B1/en active Active
- 2004-11-30 US US10/581,084 patent/US20070114499A1/en not_active Abandoned
- 2004-11-30 DE DE602004020673T patent/DE602004020673D1/de active Active
- 2004-11-30 WO PCT/JP2004/017791 patent/WO2005053885A1/ja active Application Filing
- 2004-11-30 JP JP2005515931A patent/JP4861701B2/ja not_active Expired - Fee Related
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JP2007138291A (ja) * | 2005-10-20 | 2007-06-07 | Sumitomo Metal Mining Co Ltd | ニッケル粉末およびその製造方法 |
KR101407197B1 (ko) * | 2005-10-20 | 2014-06-12 | 스미토모 긴조쿠 고잔 가부시키가이샤 | 니켈 분말과 그의 제조방법 |
JP2007134291A (ja) * | 2005-11-14 | 2007-05-31 | Shinroku Kawakado | 導電ペースト及び導電性粉末 |
JP2007138250A (ja) * | 2005-11-18 | 2007-06-07 | Mitsubishi Materials Corp | 銀粒子の製造方法及び得られた該銀粒子を含有する銀粒子含有組成物並びにその用途 |
JP2008138266A (ja) * | 2006-12-04 | 2008-06-19 | Mitsubishi Materials Corp | ハンダ粉末及び該粉末を用いたハンダ用ペースト |
JP2009293126A (ja) * | 2008-06-05 | 2009-12-17 | Xerox Corp | コア−シェル金属ナノ粒子を形成する方法 |
JP2010242179A (ja) * | 2009-04-07 | 2010-10-28 | Noritake Co Ltd | 合金微粒子およびその製造と利用 |
JP2013094836A (ja) * | 2011-11-02 | 2013-05-20 | Mitsubishi Materials Corp | プリコート用ハンダペースト及びその製造方法 |
Also Published As
Publication number | Publication date |
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US20070114499A1 (en) | 2007-05-24 |
EP1702701A8 (en) | 2007-02-21 |
CN1913995A (zh) | 2007-02-14 |
JPWO2005053885A1 (ja) | 2007-06-28 |
DE602004020673D1 (de) | 2009-05-28 |
EP1702701B1 (en) | 2009-04-15 |
EP1702701A1 (en) | 2006-09-20 |
CN100563878C (zh) | 2009-12-02 |
JP4861701B2 (ja) | 2012-01-25 |
KR20060123417A (ko) | 2006-12-01 |
EP1702701A4 (en) | 2007-06-20 |
KR100999330B1 (ko) | 2010-12-08 |
ATE428521T1 (de) | 2009-05-15 |
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