DE2412912A1 - METHOD FOR ELECTROPLATING SILICON CARBIDE BODIES - Google Patents
METHOD FOR ELECTROPLATING SILICON CARBIDE BODIESInfo
- Publication number
- DE2412912A1 DE2412912A1 DE2412912A DE2412912A DE2412912A1 DE 2412912 A1 DE2412912 A1 DE 2412912A1 DE 2412912 A DE2412912 A DE 2412912A DE 2412912 A DE2412912 A DE 2412912A DE 2412912 A1 DE2412912 A1 DE 2412912A1
- Authority
- DE
- Germany
- Prior art keywords
- silicon carbide
- electroplating
- carbide bodies
- nickel
- silicon
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/54—Electroplating of non-metallic surfaces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Electroplating Methods And Accessories (AREA)
Description
Verfahren zum Elektroplattieren von SiliziumcarbidkörpernProcess for electroplating silicon carbide bodies
In der Technik besteht ein Bedürfnis nach einem Verfahren zum Verbinden metallischer Teile mit Siliziumcarbidkörpern, die seIbst-gebunden sind, d.h. solchen Körpern, die aus einer gepreßten Mischung von grünem Siliziumcarbid und Kohlenstoff durch Behandlung mit geschmolzenem oder dampfförmigem Silizium erhalten werden. Erfiiidungs gemäß wird ein selbst-gebundener Siliziumcarbidkörper zuerst einer Behandlung zur Entfernung von freiem Silizium aus der Oberfläche des Körpers unterworfen und dann mit einem Metall elektro-There is a need in the art for a method of joining metallic parts to silicon carbide bodies, which are self-bound, i.e. bodies that are made up of a pressed mixture of green silicon carbide and Carbon can be obtained by treatment with molten or vaporous silicon. According to the invention, a self-bonded silicon carbide body first undergoes a treatment to remove free silicon from the surface of the body and then electro-
409839/0962409839/0962
plattiert. Die metallische Plattierung kann anschließend mit einem metallischen Teil, beispielsweise durch Löten verbunden werden.plated. The metallic plating can then with a metallic part, for example by soldering get connected.
Vorzugsweise werden zum Plattieren Nickel und Kupfer verwendet. Nickel and copper are preferably used for plating.
Die Vorplattierungsbehandlung des Siliziumcarbidkörpers · zur Entfernung von freiem Silizium kann durch Eintauchen in kaustisches Alkali, beispielsweise Natriumhydroxyd oder in ein Gemisch aus Fluorwasserstoffsäure und Salpetersäure erfolgen.The pre-plating treatment of the silicon carbide body to remove free silicon can be performed by dipping in caustic alkali, for example sodium hydroxide or in a mixture of hydrofluoric acid and nitric acid take place.
Nach einer bevorzugten Ausführungsform der vorliegenden Erfindung wurde ein selbst-gebundener Sillziumcarbidkörper in einer 30$Igen kochenden Lösung aus kaustischem Soda während mehreren Stunden ausgelaugt, um das freie Silizium aus der Oberflächenschicht zu entfernen. Der Körper wurde anschließend unter Verwendung einer herkömmlichen Plattierungslösung folgender Zusammensetzung mit Nickel plattiert:According to a preferred embodiment of the present Invention was a self-bonded silicon carbide body in a 30% boiling solution of caustic soda during several hours to remove the free silicon from the surface layer. The body became then plated with nickel using a conventional plating solution of the following composition:
Nickelchlorid, 100 TeileNickel chloride, 100 parts
Nickelsulfat 600 TeileNickel sulfate 600 parts
Borsäure 70 TeileBoric acid 70 parts
- 3 409839/0962 - 3 409839/0962
Natrlumformiat 30 TeileSodium formate 30 parts
Teepol 40 TeileTeepol 40 parts
Wasser 2000 TeileWater 2000 parts
Die Plattierung mit Nickel erfolgte bei 600C mit einer Nickel-Anode und dem Siliziumcarbidkörper als Kathode. Die Spannung wurde eingestellt und das Plattieren mit einem Strom von 1/4 A begonnen, bis sich eine beginnende Bindung und eine vollständig plattierte Schicht ausgebildet hatte. Der Strom wurde dann auf 1 A erhöht und das Plattieren so lange fortgesetzt, bis die gewünschte Dicke, beispielsweise zwischen 0,020 und 0,050 Zoll erreicht war.The plating with nickel took place at 60 ° C. with a nickel anode and the silicon carbide body as cathode. The voltage was adjusted and plating commenced with a current of 1/4 A until an incipient bond and a fully plated layer had formed. The current was then increased to 1A and plating continued until the desired thickness, for example between 0.020 and 0.050 inches, was achieved.
Ein auf die vorstehend beschriebene Weise plattierter Siliziumcarbidkörper mit einer 0,020 bis 0,050 Zoll dicken Plattiersohicht wurde mit rostfreien Stählen verbunden, wobei als Lötmaterial gewöhnliches Silberlot mit einer Zusammensetzung von 50$ Silber, 15$ Kupfer, 16$ Zink und 19$ Cadmium verwendet wurde. Das verwendete Flußmittel war "Easyflo" von rostfreier Qualität, wie es von der Firma Johnson Mattey Ltd., 81 Hatton Garden, London" vertrieben, wird.One plated in the manner described above Silicon carbide body with a 0.020 to 0.050 inch thick cladding layer was bonded to stainless steels, where the soldering material is ordinary silver solder with a composition of 50 $ silver, 15 $ copper, 16 $ Zinc and $ 19 cadmium was used. The flux used was stainless grade "Easyflo" like that by Johnson Mattey Ltd., 81 Hatton Garden, London "is sold.
- 4 409839/096 2- 4 409839/096 2
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1397373A GB1452901A (en) | 1973-03-22 | 1973-03-22 | Silicon carbide bodies |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2412912A1 true DE2412912A1 (en) | 1974-09-26 |
DE2412912C2 DE2412912C2 (en) | 1985-04-18 |
Family
ID=10032734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2412912A Expired DE2412912C2 (en) | 1973-03-22 | 1974-03-18 | Pretreatment process for joining a self-bonded silicon carbide body to a metal part |
Country Status (4)
Country | Link |
---|---|
US (1) | US3874069A (en) |
CH (1) | CH602516A5 (en) |
DE (1) | DE2412912C2 (en) |
GB (1) | GB1452901A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3344958C1 (en) * | 1983-12-13 | 1984-07-19 | VEGLA Vereinigte Glaswerke GmbH, 5100 Aachen | Method for soldering a power connection element to the power supply conductor of a heatable glass pane |
US4730765A (en) * | 1984-12-06 | 1988-03-15 | Tomlinson Peter N | Method of bonding by use of a phosphorus containing coating |
US4871108A (en) * | 1985-01-17 | 1989-10-03 | Stemcor Corporation | Silicon carbide-to-metal joint and method of making same |
US20080131724A1 (en) * | 2006-12-05 | 2008-06-05 | Henry Shiu-Hung Chu | Ceramic armor, methods of joining a carbide with a metal-comprising piece, and methods of metallizing carbide-comprising surfaces |
CN102335842A (en) * | 2010-07-16 | 2012-02-01 | 贵州红林机械有限公司 | Grinding method of aluminum alloy workpiece |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE750365C (en) * | 1940-07-07 | 1945-01-09 | Process for the electroplating of carbide-containing sintered bodies or such molten alloys made of tungsten, molybdenum, titanium or zirconium |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2885329A (en) * | 1951-05-10 | 1959-05-05 | Harvey L Slatin | Method for electro-nickel plating wolfram carbide |
US3620799A (en) * | 1968-12-26 | 1971-11-16 | Rca Corp | Method for metallizing a ceramic body |
JPS4928572B1 (en) * | 1969-08-26 | 1974-07-27 | ||
US3813759A (en) * | 1971-09-09 | 1974-06-04 | English Electric Co Ltd | Method of brazing |
-
1973
- 1973-03-22 GB GB1397373A patent/GB1452901A/en not_active Expired
-
1974
- 1974-03-12 US US450293A patent/US3874069A/en not_active Expired - Lifetime
- 1974-03-18 DE DE2412912A patent/DE2412912C2/en not_active Expired
- 1974-03-22 CH CH404974A patent/CH602516A5/xx not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE750365C (en) * | 1940-07-07 | 1945-01-09 | Process for the electroplating of carbide-containing sintered bodies or such molten alloys made of tungsten, molybdenum, titanium or zirconium |
Also Published As
Publication number | Publication date |
---|---|
DE2412912C2 (en) | 1985-04-18 |
GB1452901A (en) | 1976-10-20 |
CH602516A5 (en) | 1978-07-31 |
US3874069A (en) | 1975-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8141 | Disposal/no request for examination | ||
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Free format text: SCHWABE, H., DIPL.-ING. SANDMAIR, K., DIPL.-CHEM. DR.JUR. DR.RER.NAT., PAT.-ANW., 8000 MUENCHEN |
|
8339 | Ceased/non-payment of the annual fee |