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US20120088093A1 - Method for coating a sliding element and sliding element, in particular a piston ring - Google Patents

Method for coating a sliding element and sliding element, in particular a piston ring Download PDF

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Publication number
US20120088093A1
US20120088093A1 US13/257,396 US200913257396A US2012088093A1 US 20120088093 A1 US20120088093 A1 US 20120088093A1 US 200913257396 A US200913257396 A US 200913257396A US 2012088093 A1 US2012088093 A1 US 2012088093A1
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US
United States
Prior art keywords
coating
sliding element
nanoparticles
size
piston ring
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.)
Abandoned
Application number
US13/257,396
Inventor
Marcus Kennedy
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Federal Mogul Burscheid GmbH
Original Assignee
Individual
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Filing date
Publication date
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Assigned to FEDERAL-MOGUL BURSCHEID GMBH reassignment FEDERAL-MOGUL BURSCHEID GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KENNEDY, MARCUS
Publication of US20120088093A1 publication Critical patent/US20120088093A1/en
Assigned to WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE reassignment WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE CONFIRMATORY GRANT OF SECURITY INTERESTS IN UNITED STATES PATENTS Assignors: BECK ARNLEY HOLDINGS LLC, CARTER AUTOMOTIVE COMPANY LLC, CLEVITE INDUSTRIES INC., FEDERAL-MOGUL CHASSIS LLC, FEDERAL-MOGUL FILTRATION LLC, FEDERAL-MOGUL FINANCING CORPORATION, FEDERAL-MOGUL IGNITION LLC, FEDERAL-MOGUL MOTORPARTS LLC, FEDERAL-MOGUL PISTON RINGS, LLC, FEDERAL-MOGUL POWERTRAIN IP LLC, FEDERAL-MOGUL POWERTRAIN LLC, FEDERAL-MOGUL PRODUCTS US LLC, FEDERAL-MOGUL SEVIERVILLE, LLC, FEDERAL-MOGUL VALVETRAIN INTERNATIONAL LLC, FEDERAL-MOGUL WORLD WIDE LLC, FELT PRODUCTS MFG. CO. LLC, F-M MOTORPARTS TSC LLC, F-M TSC REAL ESTATE HOLDINGS LLC, MUZZY-LYON AUTO PARTS LLC, TENNECO AUTOMOTIVE OPERATING COMPANY INC., TENNECO GLOBAL HOLDINGS INC., TENNECO INC., TENNECO INTERNATIONAL HOLDING CORP., THE PULLMAN COMPANY, TMC TEXAS INC.
Assigned to FEDERAL-MOGUL MOTORPARTS LLC, TENNECO INTERNATIONAL HOLDING CORP., FEDERAL-MOGUL FILTRATION LLC, TENNECO INC., MUZZY-LYON AUTO PARTS LLC, TENNECO GLOBAL HOLDINGS INC., BECK ARNLEY HOLDINGS LLC, CLEVITE INDUSTRIES INC., TMC TEXAS INC., FEDERAL-MOGUL PRODUCTS US LLC, F-M MOTORPARTS TSC LLC, F-M TSC REAL ESTATE HOLDINGS LLC, FEDERAL-MOGUL PISTON RINGS, LLC, FEDERAL-MOGUL POWERTRAIN LLC, FEDERAL-MOGUL FINANCING CORPORATION, FEDERAL-MOGUL VALVE TRAIN INTERNATIONAL LLC, FEDERAL-MOGUL IGNITION LLC, CARTER AUTOMOTIVE COMPANY LLC, FEDERAL-MOGUL CHASSIS LLC, FEDERAL-MOGUL POWERTRAIN IP LLC, FEDERAL-MOGUL SEVIERVILLE, LLC, FEDERAL-MOGUL WORLD WIDE LLC, FELT PRODUCTS MFG. CO. LLC, THE PULLMAN COMPANY, TENNECO AUTOMOTIVE OPERATING COMPANY INC. reassignment FEDERAL-MOGUL MOTORPARTS LLC RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: WILMINGTON TRUST, NATIONAL ASSOCIATION
Abandoned legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/301—AIII BV compounds, where A is Al, Ga, In or Tl and B is N, P, As, Sb or Bi
    • C23C16/303—Nitrides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/308—Oxynitrides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/34—Nitrides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/26—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction characterised by the use of particular materials
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent

Definitions

  • the invention relates to a method for coating a sliding element and a sliding element, in particular a piston ring.
  • sliding elements such as piston rings
  • sliding elements that they only ever bring about small friction losses.
  • piston rings acting as sliding elements in internal combustion engines an increase in friction has a direct effect upon fuel consumption.
  • oil consumption is affected by the condition of the piston rings.
  • burn mark strength and outbreak strength which must be particularly high in order to permanently realise the required friction values, are to be observed.
  • piston rings which are coated by means of PVD methods on a hard material base, in particular chromium nitride. Furthermore, the electrochemical deposition of chromium layers associated with the incorporation of A1203 or diamond particles, the size of which comes within the micrometre range, is known.
  • a DLC (diamond-like carbon) coating system that can include tungsten carbide depositions in nanocrystalline form, which are produced during the separation process and are up to 10 nm in size, is revealed by WO 2007/079834 A1.
  • DE 199 58 473 A1 relates to a method for producing composite layers with a plasma beam source, wherein nanocrystalline particles can be embedded, and that can be combined with known, separately controllable CVD or PVD methods.
  • the object forming the basis of the invention is to make available a method for coating a sliding element and a corresponding sliding element with which the required friction and wear and tear properties can be realised over the required life span.
  • the invention proposes a method for coating, comprising at least one layer and formed on at least one outer surface, a sliding element, in particular a piston ring, wherein nanoparticles are initially produced, and then infused into the coating during the coating process.
  • the nanoparticles are not produced in situ, i.e. during the coating process, but they are produced separately, to a certain extent ex situ, and incorporated into the coating during the coating process.
  • the mechanism which can be used in this way and which leads to improved mechanical properties, such as fatigue strength, burn mark strength, outbreak strength, breaking strength and elongation at rupture, functions as follows according to the current state of knowledge. It is also noted that the invention is not restricted to this.
  • the incorporation of the described particles gives rise to local crystal lattice deformations which lead to the aforementioned, improved mechanical properties.
  • an improvement of the wear and tear characteristics due to the exceptionally high grain limit density and increased elasticity and less friction are achieved.
  • the advantages of the infused nanoparticles can also be made use of in the dispersion or precipitation hardening to be implemented. That is to say, the displacements produced when stressed or already existing cannot be worked or “cut” through by the particles or the depositions, but bulge out to a certain extent between the particles. In this way, displacement rings are formed which must be bypassed by the displacements. With this bypassing, higher energy is required than when the latter are “cut through” by the particles or depositions. The loading capacity is thus increased. Furthermore, the invention advantageously further makes use of the effect that the yield stress for the migration of the displacements increases as the particle spacing decreases and the particle size decreases. The material strength increases due to this. This effect can be obtained particularly well with nanoparticles.
  • the latter upon the basis of their high defect density on the surface, the latter can be infused and incorporated practically independently of the material to be reinforced during the coating process.
  • the desired depositions which can be incoherent, partially coherent or coherent, and have the effects described above with regard to the mechanical properties, can advantageously be formed.
  • the production of the nanoparticles ex situ advantageously further guarantees that the chemical and crystallographic structure of the nanoparticles can be controlled. Furthermore, by means of this control, when producing the nanoparticles it can be guaranteed that the latter can be infused into the layer hereby growing during the coating process in the desired manner.
  • the coating as such is advantageously implemented by means of tried and tested PVD (physical vapour deposition) and/or CVD (chemical vapour deposition) coating processes.
  • nitrides in particular metal (oxy)nitrides, and in particular Cr(O)N, AlN or TiN, has proven to be particularly advantageous.
  • nanoparticles which have a particle size (diameter) of 1 to 100 nm, preferably 5 to 75 and in particular 5 to 50 nm.
  • carbides and/or silicides with the composition Me x O y , Me x C y or Me x Si y are preferred.
  • the metal here can be chromium, titanium, tantalum, silicon, indium, tin, aluminium, tungsten, vanadium or molybdenum, and/or x can be 1 to 3 and/or y can be 1 to 3.
  • the coating according to the invention can be used in many different ways, due to the proven properties it is currently preferred if the base material, i.e. the coating material of the sliding element to be coated according to the invention, is cast iron or steel.
  • one or more faces i.e. the upper and/or the lower side and/or the contact surface, i.e. the outer cylinder surface of the piston ring, can be coated.
  • the contact surface can be coated more thickly with the coating according to the invention with incorporated, separately produced nanoparticles than at least one of the faces.
  • the cross-over between the contact surface and at least one face can be rounded on the coating, in the same way as this cross-over on the base material of the piston ring can be rounded.
  • the coating of both faces can be of the same thickness. In particular applications also only the contact surface can be coated.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Physical Vapour Deposition (AREA)
  • Chemical Vapour Deposition (AREA)

Abstract

The invention relates to a method wherein nanoparticle are first produced and then infused in the coating during the coating process by means of a PVD and/or CVD method. A sliding element comprises a coating formed by means of a PVD and/or CVD method comprising separately produced nanoparticles.

Description

    TECHNICAL DOMAIN
  • The invention relates to a method for coating a sliding element and a sliding element, in particular a piston ring. It is a requirement for sliding elements, such as piston rings, that they only ever bring about small friction losses. For example, with piston rings acting as sliding elements in internal combustion engines, an increase in friction has a direct effect upon fuel consumption. Furthermore, oil consumption is affected by the condition of the piston rings. In particular, with regard to this, the so-called burn mark strength and outbreak strength, which must be particularly high in order to permanently realise the required friction values, are to be observed.
    • PRIOR ART
  • As previously used items piston rings are known which are coated by means of PVD methods on a hard material base, in particular chromium nitride. Furthermore, the electrochemical deposition of chromium layers associated with the incorporation of A1203 or diamond particles, the size of which comes within the micrometre range, is known.
  • A DLC (diamond-like carbon) coating system, that can include tungsten carbide depositions in nanocrystalline form, which are produced during the separation process and are up to 10 nm in size, is revealed by WO 2007/079834 A1.
  • Finally, DE 199 58 473 A1 relates to a method for producing composite layers with a plasma beam source, wherein nanocrystalline particles can be embedded, and that can be combined with known, separately controllable CVD or PVD methods.
    • DESCRIPTION OF THE INVENTION
  • The object forming the basis of the invention is to make available a method for coating a sliding element and a corresponding sliding element with which the required friction and wear and tear properties can be realised over the required life span.
  • This object is achieved by means of the method described in claim 1.
  • Therefore, the invention proposes a method for coating, comprising at least one layer and formed on at least one outer surface, a sliding element, in particular a piston ring, wherein nanoparticles are initially produced, and then infused into the coating during the coating process. In other words, the nanoparticles are not produced in situ, i.e. during the coating process, but they are produced separately, to a certain extent ex situ, and incorporated into the coating during the coating process. The mechanism which can be used in this way and which leads to improved mechanical properties, such as fatigue strength, burn mark strength, outbreak strength, breaking strength and elongation at rupture, functions as follows according to the current state of knowledge. It is also noted that the invention is not restricted to this. The incorporation of the described particles gives rise to local crystal lattice deformations which lead to the aforementioned, improved mechanical properties. Furthermore, an improvement of the wear and tear characteristics due to the exceptionally high grain limit density and increased elasticity and less friction are achieved.
  • The advantages of the infused nanoparticles can also be made use of in the dispersion or precipitation hardening to be implemented. That is to say, the displacements produced when stressed or already existing cannot be worked or “cut” through by the particles or the depositions, but bulge out to a certain extent between the particles. In this way, displacement rings are formed which must be bypassed by the displacements. With this bypassing, higher energy is required than when the latter are “cut through” by the particles or depositions. The loading capacity is thus increased. Furthermore, the invention advantageously further makes use of the effect that the yield stress for the migration of the displacements increases as the particle spacing decreases and the particle size decreases. The material strength increases due to this. This effect can be obtained particularly well with nanoparticles. Furthermore, it has been shown within the scope of the invention that upon the basis of their high defect density on the surface, the latter can be infused and incorporated practically independently of the material to be reinforced during the coating process. In this way, the desired depositions, which can be incoherent, partially coherent or coherent, and have the effects described above with regard to the mechanical properties, can advantageously be formed. The production of the nanoparticles ex situ advantageously further guarantees that the chemical and crystallographic structure of the nanoparticles can be controlled. Furthermore, by means of this control, when producing the nanoparticles it can be guaranteed that the latter can be infused into the layer hereby growing during the coating process in the desired manner.
  • The coating as such is advantageously implemented by means of tried and tested PVD (physical vapour deposition) and/or CVD (chemical vapour deposition) coating processes.
  • Advantageous further developments of the method according to the invention are described in the further claims.
  • For the base material or the matrix of the coating a material that contains nitrides, in particular metal (oxy)nitrides, and in particular Cr(O)N, AlN or TiN, has proven to be particularly advantageous.
  • In initial trials it transpired that a volume portion of the nanoparticles of 20% or less leads to good properties.
  • Furthermore, one was able to have good experiences with nanoparticles which have a particle size (diameter) of 1 to 100 nm, preferably 5 to 75 and in particular 5 to 50 nm.
  • For the nanoparticles compounds from the group of oxides, carbides and/or silicides with the composition MexOy, MexCy or MexSiy are preferred. The metal here can be chromium, titanium, tantalum, silicon, indium, tin, aluminium, tungsten, vanadium or molybdenum, and/or x can be 1 to 3 and/or y can be 1 to 3.
  • With regard to the layer thickness, particularly good properties have been determined with a coating thickness of max. 100 μm, and preferably in the range of 5 to 50 μm.
  • Even though the coating according to the invention can be used in many different ways, due to the proven properties it is currently preferred if the base material, i.e. the coating material of the sliding element to be coated according to the invention, is cast iron or steel.
  • The aforementioned object is achieved, furthermore, by the sliding element described in claim 9, wherein this is particularly a piston ring. The preferred embodiments of the sliding element according to the invention correspond to those of the method according to the invention for producing the latter. This applies in the same way to the advantages that occur, which lie in particular in a permanent sliding element permanently having the required friction values and wear and tear properties.
  • For the preferred case of a piston ring, it is mentioned that as sliding surfaces, one or more faces, i.e. the upper and/or the lower side and/or the contact surface, i.e. the outer cylinder surface of the piston ring, can be coated. The contact surface can be coated more thickly with the coating according to the invention with incorporated, separately produced nanoparticles than at least one of the faces. The cross-over between the contact surface and at least one face can be rounded on the coating, in the same way as this cross-over on the base material of the piston ring can be rounded. The coating of both faces can be of the same thickness. In particular applications also only the contact surface can be coated.

Claims (26)

1. A method for coating, comprising at least one layer and formed on at least one outer surface, a sliding element, wherein nanoparticles are initially produced, and then infused into the coating during the coating process, which is implemented by means of a PVD and/or a CVD method, the coating being formed containing a metal oxynitride.
2. The method according to claim 1, wherein the coating is formed containing a metal nitride.
3. The method according to claim 1 wherein the coating is formed containing CrON.
4. The method according to claim 1, wherein the nanoparticles comprise up to 20 volume % of the coating.
5. The method according to claim 1, wherein the coating is formed such that the nanoparticles are 1 to 100 nm in size.
6. The method according to claim 1, wherein the coating is formed such that the nanoparticles are chosen from the group of oxides, carbides and/or silicides, and one or more of the compounds comprise MexOy, MexCy and MexSiy with Me: Cr, Ti, Ta, Si, In, Sn, Al, W, V, Mo and/or x=1 to 3 and/or Y=1 to 3.
7. The method according to claim 1, wherein the coating is formed with a total thickness of up to about 100 μm.
8. The method according to claim 1, wherein the coating is formed over cast iron or steel as the base material of the sliding element.
9. A sliding element with a coating comprising at least one layer, formed by means of a PVD and/or a CVD method, on at least one outer surface, which has separately produced nanoparticles, wherein the coating contains a metal oxynitride.
10. The sliding element according to claim 9, wherein the coating contains a metal nitride.
11. The sliding element according to claim 9, wherein the coating contains CrON.
12. The sliding element according to claim 9, wherein the nanoparticles comprise of up to 20 volume % of the coating.
13. The sliding element according to claim 9, wherein the nanoparticles are 1 to 100 nm in size.
14. The sliding element according to claim 9, wherein the nanoparticles are chosen from the group of oxides, carbides and/or silicides, and one or more of the compounds comprise MexOy, MexCy and MexSiy with Me: Cr, Ti, Ta, Si, In, Sn, Al, W, V, Mo and/or x=1 to 3 and/or Y=1 to 3.
15. The sliding element according to claim 9, wherein the whole thickness of the coating is up to about 100 μm.
16. The sliding element according to claim 9, wherein the base material of the sliding element comprises cast iron or steel.
17. The method of claim 1, wherein the sliding element is a piston ring.
18. The method of claim 2, wherein the metal nitride is selected from at least one of CrN, AlN or TiN.
19. The method of claim 5, wherein the nanoparticles are 5 to 75 nm in size.
20. The method of claim 5, wherein the nanoparticles are 5 to 50 nm in size.
21. The method of claim 7, wherein the total thickness is 5 to 50 μm.
22. The sliding element of claim 9, comprising a piston ring.
23. The sliding element of claim 10, wherein the metal nitride comprises at least one of CrN, AlN or TiN.
24. The sliding element of claim 13, wherein the nanoparticles are 5 to 75 nm in size.
25. The sliding element of claim 13, wherein the nanoparticles are 5 to 50 nm in size.
26. The sliding element of claim 15, wherein the total thickness is 5 to 50 μm.
US13/257,396 2009-03-19 2009-12-10 Method for coating a sliding element and sliding element, in particular a piston ring Abandoned US20120088093A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009013855.2 2009-03-19
DE102009013855A DE102009013855A1 (en) 2009-03-19 2009-03-19 Process for coating a sliding element and sliding element, in particular piston ring
PCT/EP2009/066824 WO2010105710A1 (en) 2009-03-19 2009-12-10 Method for coating a sliding element and sliding element, in particular a piston ring

Related Parent Applications (1)

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PCT/EP2009/066824 A-371-Of-International WO2010105710A1 (en) 2009-03-19 2009-12-10 Method for coating a sliding element and sliding element, in particular a piston ring

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US14/813,481 Division US9938626B2 (en) 2009-03-19 2015-07-30 Method for coating a sliding element using a nanoparticles infused coating

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US13/257,396 Abandoned US20120088093A1 (en) 2009-03-19 2009-12-10 Method for coating a sliding element and sliding element, in particular a piston ring
US14/813,481 Expired - Fee Related US9938626B2 (en) 2009-03-19 2015-07-30 Method for coating a sliding element using a nanoparticles infused coating

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US (2) US20120088093A1 (en)
EP (1) EP2408949B1 (en)
JP (1) JP5501437B2 (en)
KR (1) KR101670730B1 (en)
CN (2) CN105386050A (en)
BR (1) BRPI0924428B1 (en)
DE (1) DE102009013855A1 (en)
PT (1) PT2408949E (en)
WO (1) WO2010105710A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10030773B2 (en) 2016-03-04 2018-07-24 Mahle International Gmbh Piston ring
US11143302B2 (en) * 2016-06-30 2021-10-12 Mahle Metal Leve S/A Sliding element for internal combustion engines

Families Citing this family (2)

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DE102009013855A1 (en) 2010-09-23
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EP2408949B1 (en) 2013-01-16
US9938626B2 (en) 2018-04-10
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KR101670730B1 (en) 2016-10-31
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