PL450054A1 - Method for producing Ag-Cu alloy powder - Google Patents

Method for producing Ag-Cu alloy powder

Info

Publication number
PL450054A1
PL450054A1 PL450054A PL45005424A PL450054A1 PL 450054 A1 PL450054 A1 PL 450054A1 PL 450054 A PL450054 A PL 450054A PL 45005424 A PL45005424 A PL 45005424A PL 450054 A1 PL450054 A1 PL 450054A1
Authority
PL
Poland
Prior art keywords
ions
solution containing
precipitate
alloy powder
powder
Prior art date
Application number
PL450054A
Other languages
Polish (pl)
Inventor
Marek Wojnicki
Tomasz Michałek
Konrad Wojtaszek
Original Assignee
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie filed Critical Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Priority to PL450054A priority Critical patent/PL450054A1/en
Publication of PL450054A1 publication Critical patent/PL450054A1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C9/00Alloys based on copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C5/00Alloys based on noble metals
    • C22C5/06Alloys based on silver
    • C22C5/08Alloys based on silver with copper as the next major constituent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

Przedmiotem zgłoszenia jest sposób wytwarzania proszku stopowego Ag-Cu, który charakteryzuje się tym, że w I etapie miesza się roztwór zawierający jony Cu2+ o stężeniu 0,1 - 5,0 mol/L z roztworem zawierającym jony Ag+ o stężeniu 0,1 - 5,0 mol/L w takiej ilości, aby stosunek masowy Cu do Ag wynosił od 1:99 do 99:1. Roztwory miesza się przez co najmniej 1 minutę, po czym dodaje się roztwór zawierający jony CO32- do uzyskania odczynu obojętnego, korzystnie pH=6,9 - 7,1 i kontynuuje się mieszanie przez co najmniej 3 minuty, aby uzyskać pełne strącenie węglanów metali. Następnie uzyskany osad poddaje się filtracji, korzystnie sączeniu próżniowemu przy użyciu filtra o retencji cząstek 8 - 12 µm, co zapewnia odpowiednią czystość osadu. Osad suszy się w temperaturze 65°C - 75°C do uzyskania stałej masy i rozdrabnia do uzyskania jednorodnego proszku o wielkości ziaren poniżej 0,5 mm. W II etapie, proszek poddaje się redukcji w temperaturze 200°C - 350°C, przy przepływie gazu zawierającego H2, korzystnie w postaci mieszaniny zawierającej 5% H2 i 95% Ar, utrzymując go w tej temperaturze do uzyskania stałej masy lub braku obecności CO2 i H2O w gazach odlotowych. Gotowy proszek stopowy Ag-Cu wyjmuje się z pieca dopiero po całkowitym jego wystygnięciu do temperatury nie większej niż 30°C, co ogranicza jego wtórne utlenienie.The subject of the application is a method for producing Ag-Cu alloy powder, which is characterized in that in the first stage, a solution containing Cu2+ ions at a concentration of 0.1 - 5.0 mol/L is mixed with a solution containing Ag+ ions at a concentration of 0.1 - 5.0 mol/L in such an amount that the mass ratio of Cu to Ag is from 1:99 to 99:1. The solutions are mixed for at least 1 minute, after which a solution containing CO32- ions is added until a neutral reaction is obtained, preferably pH = 6.9 - 7.1, and mixing is continued for at least 3 minutes to achieve complete precipitation of the metal carbonates. The obtained precipitate is then subjected to filtration, preferably vacuum filtration using a filter with a particle retention of 8 - 12 µm, which ensures appropriate precipitate purity. The precipitate is dried at 65°C-75°C to a constant mass and ground to a uniform powder with a grain size of less than 0.5 mm. In the second stage, the powder is reduced at 200°C-350°C in a flow of H2-containing gas, preferably as a mixture of 5% H2 and 95% Ar, and maintained at this temperature until a constant mass is achieved or until the exhaust gases cease to contain CO2 and H2O. The finished Ag-Cu alloy powder is removed from the furnace only after it has cooled completely to a temperature no greater than 30°C, which limits its secondary oxidation.

PL450054A 2024-10-17 2024-10-17 Method for producing Ag-Cu alloy powder PL450054A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL450054A PL450054A1 (en) 2024-10-17 2024-10-17 Method for producing Ag-Cu alloy powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL450054A PL450054A1 (en) 2024-10-17 2024-10-17 Method for producing Ag-Cu alloy powder

Publications (1)

Publication Number Publication Date
PL450054A1 true PL450054A1 (en) 2026-04-20

Family

ID=99477181

Family Applications (1)

Application Number Title Priority Date Filing Date
PL450054A PL450054A1 (en) 2024-10-17 2024-10-17 Method for producing Ag-Cu alloy powder

Country Status (1)

Country Link
PL (1) PL450054A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007040195A1 (en) * 2005-10-03 2007-04-12 Mitsui Mining & Smelting Co., Ltd. Silver-copper composite powder having silver microparticule attached thereto, and method of production of the silver-copper composite powder
WO2011136284A1 (en) * 2010-04-28 2011-11-03 住友電気工業株式会社 Cu-Ag ALLOY WIRE AND METHOD FOR PRODUCING Cu-Ag ALLOY WIRE
CN107312945A (en) * 2017-07-07 2017-11-03 合肥工业大学 A kind of preparation method of Cu/Ag(Invar) composite material for electronic packaging
JP2017201062A (en) * 2017-06-23 2017-11-09 Dowaエレクトロニクス株式会社 Method for producing silver-coated copper alloy powder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007040195A1 (en) * 2005-10-03 2007-04-12 Mitsui Mining & Smelting Co., Ltd. Silver-copper composite powder having silver microparticule attached thereto, and method of production of the silver-copper composite powder
WO2011136284A1 (en) * 2010-04-28 2011-11-03 住友電気工業株式会社 Cu-Ag ALLOY WIRE AND METHOD FOR PRODUCING Cu-Ag ALLOY WIRE
JP2017201062A (en) * 2017-06-23 2017-11-09 Dowaエレクトロニクス株式会社 Method for producing silver-coated copper alloy powder
CN107312945A (en) * 2017-07-07 2017-11-03 合肥工业大学 A kind of preparation method of Cu/Ag(Invar) composite material for electronic packaging

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
A. ABDUL SALAM ET AL.: "J Nanostruct Chem (2015) 5:383–392 DOI 10.1007/s40097-015-0170-1", „ELECTROCHEMICAL FABRICATION OF AG–CU NANO ALLOY AND ITS CHARACTERIZATION: AN INVESTIGATION" *
MUNEVVER KOROGLU ET AL.: "Metals 2021, 11, 1466. https://doi.org/10.3390/met11091466", „ONE STEP PRODUCTION OF SILVER-COPPER (AGCU) NANOPARTICLES" *

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