DE2043924A1 - Carbon fibre reinforced metal - with fibres having transition metal carbide coating - Google Patents

Carbon fibre reinforced metal - with fibres having transition metal carbide coating

Info

Publication number
DE2043924A1
DE2043924A1 DE19702043924 DE2043924A DE2043924A1 DE 2043924 A1 DE2043924 A1 DE 2043924A1 DE 19702043924 DE19702043924 DE 19702043924 DE 2043924 A DE2043924 A DE 2043924A DE 2043924 A1 DE2043924 A1 DE 2043924A1
Authority
DE
Germany
Prior art keywords
carbon fibers
transition metal
coated
metal
fibres
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.)
Pending
Application number
DE19702043924
Other languages
German (de)
Inventor
Anthony James Nussbaumen; HoIlox Graham Edward Fislisbach; Perry (Schweiz). M
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
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 BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
Publication of DE2043924A1 publication Critical patent/DE2043924A1/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
    • C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

The C fibres for reinforcing metals are provided with a thin coating of a carbide of a transition metal or several such carbides prior to incorporation into the metal matrix, so that chemical reaction between the carbide-coated C fibres and the metal matrix is avoided.

Description

Verfahren zur Herstellung von mit Kohlenstoff Fasern verstArktem Metall Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von mit Kohlenstoff Fassrn verstärktem Metall.Process for the production of metal reinforced with carbon fibers The present invention relates to a method for producing carbon with Reinforced metal barrel.

Es ist bekannt, dass man die mechanischen Eigenschaften von Metall mit Hilfe von Kohlenstoff-Fasern verbessern kann. Kohlenstoff-Fasern weisen Jedoch den Nachteil auf, dass wenn sie bei hdheren Temperaturen in das Metall eingebracht werden, Kohlenstoff im Metall gelöst wird, wodurch eine Versprddung des letzteren auftritt und die mechanischen Eigenschaften beider Komponenten verschlechtert werden. In vielen fällen tritt auch eine schlechte Benetzung der Kohlenstoff-Fasern durch das Metall und somit keine gute Verbindung zwischen diesen beiden Komponenten auf.It is known that one can improve the mechanical properties of metal with the help of carbon fibers can improve. However, carbon fibers have the disadvantage that if they are introduced into the metal at higher temperatures carbon is dissolved in the metal, causing the latter to become embrittled occurs and the mechanical properties of both components are deteriorated. In many cases, poor wetting of the carbon fibers also occurs the metal and therefore not a good connection between these two components.

Zweck der Erfindung ist die Schaffung eines Verfahrens, welches diese Nachteils nicht aufweist.The purpose of the invention is to provide a method which this Does not have any disadvantage.

Das erfindungsgemässe Verfahren ist dadurch gekennzeichnet, dass man die Kohlenstoff-Fasern kontinuierlich mit einem Uebergangsmetallkarbid oder.einer Legierung aus mehreren Uebergangsmetallkarbiden beschichtet, derart, dass diese Schicht physikalisch oder chemisch mit der Oberfläche der ersteren verbunden wird, und darnach die derart beschichteten Kohlenstoff-Fasern in das die Matrix bildende Metall einbringt.The inventive method is characterized in that one the Carbon fibers continuously with a transition metal carbide or an alloy coated from several transition metal carbides in such a way that this layer is physically or is chemically bonded to the surface of the former, and thereafter the such coated carbon fibers in the metal forming the matrix.

Es ist zweckmässig, dass man die Kohlenstoff-Fasern kontinuierlich mit einer TiC-Schicht umgibt.It is convenient that the carbon fibers are continuous surrounds with a TiC layer.

Vorzugsweise Uberzieht man die Kohlenstoff-Fasern kontinuierlich mit einer mindestens 1000 t jedoch höchstens 500011 dicken Schicht aus einem Uebergangsmetallkarbid oder einer Legierung aus mehreren Uebergangsmetallkarbiden.The carbon fibers are preferably also coated continuously a layer of transition metal carbide that is at least 1000 t but not more than 500011 thick or an alloy of several transition metal carbides.

Nachstehend wird die Erfindung anhand eines Beispieles näher erläutert.The invention is explained in more detail below using an example.

Um Aluminium mit Kohlenstoff-Fasern zu verstärken, werden die letzteren vor dem Einbringen in die Metallmatrix zur Verhinderung einer Diffusion von Kohlenstoff in die letztere kontinuierlich mit einer TiC-Schicht von 1000 bis 5000 g Dicke überzogen, und zwar derart, dass die TiC-Schicht physikalisch oder chemisch mit der Oberfläche der Kohlenstoff-Fasern fest verbunden wird. Die Dicke der TiC-Schicht wird dabei so dünn wie möglich gewählt, da diese Schicht nur als Benetzungs- und Schutzschicht dienen soll.To reinforce aluminum with carbon fibers, the latter are used before being introduced into the metal matrix to prevent diffusion of carbon in the latter continuously coated with a TiC layer of 1000 to 5000 g thickness, in such a way that the TiC layer physically or chemically with the surface the carbon fibers are firmly connected. The thickness of the TiC layer is thereby as thin as possible, as this layer is only used as a wetting and protective layer should serve.

Um ein einwandfreies Eindringen der Aluminiumschmelze in Kohlenstoff-Faserbündel sicherzustellen, wird die erstere während dem Einbringen der Kohlenstoff-Fasern unter einem Vakuum gehalten.To ensure proper penetration of the aluminum melt in the carbon fiber bundle will ensure the former during the introduction of the carbon fibers held under a vacuum.

Versuche haben ergeben, dass es auf diese Weise möglich ist, Aluminium-mit Kohlenstoff-Fasern zu verstärken, ohne die guten mechanischen Festigkeitseigenschaften der letzteren zu verschlechtern und ohne dass Kohlenstoff in die AluminiummatErix diffundiert.Tests have shown that it is possible to use aluminum in this way Reinforce carbon fibers without the good mechanical strength properties the latter to deteriorate and without putting carbon in the aluminum matrix diffused.

Kohlenstoff-Fasern/ Aluminium-Verbundwerkstoffe können z.B.Carbon fiber / aluminum composites can e.g.

überall im Leichtbau, wo erhöhte spezifische Festigkeit verlangt wird, verwendet werden. Anwendungsbeispiele -sind z.B. Kompressorenschaufeln und Zentrifugenrotoren-.everywhere in lightweight construction where increased specific strength is required, be used. Application examples are e.g. compressor blades and centrifuge rotors.

Vorzugsweise verwendet man ein die Matrix bildendes Metall von solcher Zusammensetzung, das mit der auf den- Kohlenstoff-Fasern aufgebrachten, aus einem Uebergangsmetallkarbid oder einer Legierung aus mehreren Uebergangsmetallkarbiden bestehenden Schicht derart reagiert, dass keine die mechanischen Festigkeitseigenschaften des Verbundwerkstoffes beeinträchtigenden Reaktionsprodukte entstehen.A metal of such forming the matrix is preferably used Composition that is applied to the carbon fibers of one Transition metal carbide or an alloy of several transition metal carbides existing layer reacts in such a way that none of the mechanical strength properties the composite material impairing reaction products arise.

Bei Verwendung einer Metallschmelze zur Bildung dez Matrix kann es zweckmässig sein, wenn man der Metallschmelze Legierungszusatze beifügt, welche die spezifische Oberflächenspannung der Schmelze gegenüber den beschichteten Kohlenstoff-Fasern erniedrigen.If a molten metal is used to form the matrix, it can be useful if you add alloy additives to the molten metal, which the specific surface tension of the melt compared to the coated carbon fibers humiliate.

Nebst der Schmelzinfiltrierung ist es auch möglich, die mit einem Uebergangsmetallkarbid oder einer Legierung aus mehreren Uebergangsmetallkarbiden überzogenen Kohlenstoff-Fasern in pulverförmiges Metall einzubringen und durch Sintern mit demselben zu verbinden.In addition to melt infiltration, it is also possible to use a Transition metal carbide or an alloy of several transition metal carbides to bring coated carbon fibers into powdered metal and by sintering to connect with the same.

Claims (5)

PatentansprücheClaims 1. Verfahren zur Herstellung von mit Kohlenstoff-Fasern verstärktem Metall, dadurch gekennzeichnet, dass man die Kohlenstoff-Fasern kontinuierlich mit einem Uebergangsmetallkarbid oder einer Legierung aus mehreren Uebergangsmetallkarbiden beschichtet, derart, dass diese Schicht physikalisch oder chemisch mit der Oberfläche der ersteren verbunden wird, und darnach die derart beschichteten Kohlenstoff-Fasern in das die Matrix bildende Metall einbringt.1. Process for the production of reinforced with carbon fibers Metal, characterized in that the carbon fibers are continuously with a transition metal carbide or an alloy of several transition metal carbides coated in such a way that this layer physically or chemically with the surface the former is connected, and then the carbon fibers coated in this way into which the metal forming the matrix is introduced. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass man die Kohlenstoff-Fasern kontinuierlich mit einer TiC-Schicht umgibt.2. The method according to claim 1, characterized in that the Carbon fibers are continuously surrounded by a TiC layer. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass man die beschichteten Kohlenstoff-Fasern in eine Al-, Cu- oder Ti-Matrix einbringt.3. The method according to claim 1 or 2, characterized in that the coated carbon fibers are introduced into an Al, Cu or Ti matrix. 4. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass man die beschichteten Kohlenstoff-Fasern in eine aus einer Al-,Cu-oder Ti-Legierung bestehenden Matrix einbringt.4. The method according to claim 1 or 2, characterized in that the coated carbon fibers are made of an Al, Cu or Ti alloy existing matrix. 5. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass man die Kohlenstoff-Fasern mit einer mindestens 1000 Â jedoch höchstens 5000 (dicken Schicht aus einem Uebergangsmetallkarbid oder einer Legierung aus mehreren Uebergangsmetallkarbiden kontinuierlich überzieht.5. The method according to claim 1 or 2, characterized in that the carbon fibers with a minimum of 1000 Â but at most 5000 (thick layer of a transition metal carbide or an alloy of several transition metal carbides is continuously coated.
DE19702043924 1970-07-03 1970-09-04 Carbon fibre reinforced metal - with fibres having transition metal carbide coating Pending DE2043924A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1008070A CH528596A (en) 1970-07-03 1970-07-03 Process for the production of metal reinforced with carbon fibers

Publications (1)

Publication Number Publication Date
DE2043924A1 true DE2043924A1 (en) 1972-01-13

Family

ID=4359112

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702043924 Pending DE2043924A1 (en) 1970-07-03 1970-09-04 Carbon fibre reinforced metal - with fibres having transition metal carbide coating

Country Status (2)

Country Link
CH (1) CH528596A (en)
DE (1) DE2043924A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2192193A1 (en) * 1972-07-10 1974-02-08 Union Carbide Corp
DE2501024A1 (en) * 1975-01-13 1976-07-22 Fiber Materials Graphite-metal composites - including graphite fibres coated with titanium boride and opt. titanium carbide
FR2314257A1 (en) * 1975-06-09 1977-01-07 Westinghouse Canada Ltd ARMED SUPERALLIES
DE2556679A1 (en) * 1975-09-15 1977-03-17 Fiber Materials COMPOSITE MATERIAL AND PROCESS FOR ITS MANUFACTURING
US4104417A (en) * 1973-03-12 1978-08-01 Union Carbide Corporation Method of chemically bonding aluminum to carbon substrates via monocarbides
US4252856A (en) * 1973-03-12 1981-02-24 Union Carbide Corporation Chemically bonded aluminum coated carbon via monocarbides
US4347083A (en) 1973-03-12 1982-08-31 Union Carbide Corporation Chemically bonded aluminum coating for carbon via monocarbides
US4402744A (en) 1973-03-12 1983-09-06 Union Carbide Corporation Chemically bonded aluminum coating for carbon via monocarbides
EP0295635A2 (en) * 1987-06-17 1988-12-21 Director General of Agency of Industrial Science and Technology A preform wire for a carbon fiber reinforced aluminum composite material and a method for manufacturing the same
DE19751929A1 (en) * 1997-11-22 1999-05-27 Ks Aluminium Technologie Ag Method for producing a casting

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2192193A1 (en) * 1972-07-10 1974-02-08 Union Carbide Corp
US4104417A (en) * 1973-03-12 1978-08-01 Union Carbide Corporation Method of chemically bonding aluminum to carbon substrates via monocarbides
US4252856A (en) * 1973-03-12 1981-02-24 Union Carbide Corporation Chemically bonded aluminum coated carbon via monocarbides
US4347083A (en) 1973-03-12 1982-08-31 Union Carbide Corporation Chemically bonded aluminum coating for carbon via monocarbides
US4402744A (en) 1973-03-12 1983-09-06 Union Carbide Corporation Chemically bonded aluminum coating for carbon via monocarbides
DE2501024A1 (en) * 1975-01-13 1976-07-22 Fiber Materials Graphite-metal composites - including graphite fibres coated with titanium boride and opt. titanium carbide
FR2314257A1 (en) * 1975-06-09 1977-01-07 Westinghouse Canada Ltd ARMED SUPERALLIES
DE2556679A1 (en) * 1975-09-15 1977-03-17 Fiber Materials COMPOSITE MATERIAL AND PROCESS FOR ITS MANUFACTURING
EP0295635A2 (en) * 1987-06-17 1988-12-21 Director General of Agency of Industrial Science and Technology A preform wire for a carbon fiber reinforced aluminum composite material and a method for manufacturing the same
EP0295635A3 (en) * 1987-06-17 1991-06-12 Director General of Agency of Industrial Science and Technology A preform wire for a carbon fiber reinforced aluminum composite material and a method for manufacturing the same
DE19751929A1 (en) * 1997-11-22 1999-05-27 Ks Aluminium Technologie Ag Method for producing a casting

Also Published As

Publication number Publication date
CH528596A (en) 1972-09-30

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