JP5872440B2 - 球状銀粉およびその製造方法 - Google Patents
球状銀粉およびその製造方法 Download PDFInfo
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- JP5872440B2 JP5872440B2 JP2012250271A JP2012250271A JP5872440B2 JP 5872440 B2 JP5872440 B2 JP 5872440B2 JP 2012250271 A JP2012250271 A JP 2012250271A JP 2012250271 A JP2012250271 A JP 2012250271A JP 5872440 B2 JP5872440 B2 JP 5872440B2
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- Prior art keywords
- ppm
- silver
- silver powder
- particles
- spherical silver
- Prior art date
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- 229910052709 silver Inorganic materials 0.000 claims description 87
- 239000004332 silver Substances 0.000 claims description 87
- -1 silver ions Chemical class 0.000 claims description 26
- 239000003638 chemical reducing agent Substances 0.000 claims description 21
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- 238000006243 chemical reaction Methods 0.000 claims description 19
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Images
Classifications
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- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
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- 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
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- B22F1/05—Metallic powder characterised by the size or surface area of the particles
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- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
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- C22C5/06—Alloys based on silver
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
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- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/25—Noble metals, i.e. Ag Au, Ir, Os, Pd, Pt, Rh, Ru
- B22F2301/255—Silver or gold
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- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description
銀8.63gを含む硝酸銀水溶液753gを分取した1Lビーカーを、水温35℃の水を入れた超音波洗浄機(アズワン株式会社製のUS Cleaner USD−4R、出力160W)に入れ、発振周波数40kHzで超音波照射を開始するとともに攪拌を開始した。
銀8.63gを含む硝酸銀水溶液753gを分取した1Lビーカーを、水温20℃の水を入れた超音波洗浄機(アズワン株式会社製のUS Cleaner USD−4R、出力160W)に入れ、攪拌を開始した。
銀9.00gを含む硝酸銀水溶液688gを分取した1Lビーカーを、水温30℃の水を入れた超音波洗浄機(アズワン株式会社製のUS Cleaner USD−4R、出力160W)に入れ、発振周波数28kHzで超音波照射を開始するとともに攪拌を開始した。
銀8.63gを含む硝酸銀水溶液28.6gを分取した1Lビーカーを、水温35℃の水を入れた超音波洗浄機(アズワン株式会社製のUS Cleaner USD−4R、出力160W)に入れ、発振周波数40kHzで超音波照射を開始するとともに攪拌を開始した。
Claims (4)
- 銀イオンを含有する水性反応系に、超音波を照射することによってキャビテーションを発生させながら、還元剤としてアルデヒドを含有する還元剤含有溶液を混合して、銀粒子を還元析出させることにより、粒子内部に閉鎖された空隙を有する球状銀粉を製造することを特徴とする、球状銀粉の製造方法。
- 前記銀イオンを含有する水性反応系が、銀のアンモニア錯体を含有する水溶液であることを特徴とする、請求項1に記載の球状銀粉の製造方法。
- 前記還元剤含有溶液が、ホルムアルデヒドまたはアセトアルデヒドを含有する溶液であることを特徴とする、請求項1または2に記載の球状銀粉の製造方法。
- 前記還元析出した銀粒子を固液分離し、洗浄した後、100℃以下で乾燥させることを特徴とする、請求項1乃至3のいずれかに記載の球状銀粉の製造方法。
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JP2012250271A JP5872440B2 (ja) | 2012-02-13 | 2012-11-14 | 球状銀粉およびその製造方法 |
MYPI2014002016A MY169336A (en) | 2012-02-13 | 2013-02-12 | Spherical silver powder and method for producing same |
EP13749707.9A EP2796231B1 (en) | 2012-02-13 | 2013-02-12 | Spherical silver powder and method for producing same |
KR1020197017463A KR102073531B1 (ko) | 2012-02-13 | 2013-02-12 | 구상 은분 및 그의 제조 방법 |
CN201380009103.8A CN104136151B (zh) | 2012-02-13 | 2013-02-12 | 球形银粉末及其生产方法 |
US14/377,985 US11424049B2 (en) | 2012-02-13 | 2013-02-12 | Spherical silver powder and method for producing same |
KR1020147025084A KR20140125418A (ko) | 2012-02-13 | 2013-02-12 | 구상 은분 및 그의 제조 방법 |
SG11201404018WA SG11201404018WA (en) | 2012-02-13 | 2013-02-12 | Spherical silver powder and method for producing same |
PCT/JP2013/053785 WO2013122244A1 (ja) | 2012-02-13 | 2013-02-12 | 球状銀粉およびその製造方法 |
KR1020197017461A KR102014055B1 (ko) | 2012-02-13 | 2013-02-12 | 구상 은분 및 그의 제조 방법 |
SG10201606633QA SG10201606633QA (en) | 2012-02-13 | 2013-02-12 | Spherical silver powder and method for producing same |
US15/831,696 US20180096747A1 (en) | 2012-02-13 | 2017-12-05 | Spherical silver powder and method for producing same |
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KR20200082067A (ko) | 2018-12-28 | 2020-07-08 | 대주전자재료 주식회사 | 구형 은 분말 및 이의 제조방법 |
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US20150034883A1 (en) | 2015-02-05 |
CN104136151A (zh) | 2014-11-05 |
CN104136151B (zh) | 2016-08-31 |
SG11201404018WA (en) | 2014-10-30 |
WO2013122244A1 (ja) | 2013-08-22 |
EP2796231B1 (en) | 2020-11-11 |
KR20140125418A (ko) | 2014-10-28 |
JP2013189704A (ja) | 2013-09-26 |
MY169336A (en) | 2019-03-21 |
KR102014055B1 (ko) | 2019-08-23 |
SG10201606633QA (en) | 2016-10-28 |
US11424049B2 (en) | 2022-08-23 |
KR102073531B1 (ko) | 2020-02-04 |
KR20190075150A (ko) | 2019-06-28 |
KR20190075149A (ko) | 2019-06-28 |
EP2796231A1 (en) | 2014-10-29 |
US20180096747A1 (en) | 2018-04-05 |
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