WO2011104252A1 - Dispositif et procédé pour faire fonctionner un composant sous sollicitation tribologique - Google Patents

Dispositif et procédé pour faire fonctionner un composant sous sollicitation tribologique Download PDF

Info

Publication number
WO2011104252A1
WO2011104252A1 PCT/EP2011/052645 EP2011052645W WO2011104252A1 WO 2011104252 A1 WO2011104252 A1 WO 2011104252A1 EP 2011052645 W EP2011052645 W EP 2011052645W WO 2011104252 A1 WO2011104252 A1 WO 2011104252A1
Authority
WO
WIPO (PCT)
Prior art keywords
ceramic material
component
electrode
liquid medium
voltage source
Prior art date
Application number
PCT/EP2011/052645
Other languages
German (de)
English (en)
Inventor
Andreas Kailer
Tobias Amann
Oliver Krummhauer
Peter Gumbsch
Original Assignee
Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V.
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 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. filed Critical Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V.
Publication of WO2011104252A1 publication Critical patent/WO2011104252A1/fr

Links

Classifications

    • 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
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
    • 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/043—Sliding surface consisting mainly of ceramics, cermets or hard carbon, e.g. diamond like carbon [DLC]
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/002—Conductive elements, e.g. to prevent static electricity
    • 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
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
    • 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F2201/00—Type of materials to be protected by cathodic protection
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/30—Electric properties; Magnetic properties
    • F16C2202/32—Conductivity
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2206/00—Materials with ceramics, cermets, hard carbon or similar non-metallic hard materials as main constituents
    • F16C2206/40—Ceramics, e.g. carbides, nitrides, oxides, borides of a metal
    • F16C2206/56—Ceramics, e.g. carbides, nitrides, oxides, borides of a metal based on ceramic carbides, e.g. silicon carbide (SiC)
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/40—Application independent of particular apparatuses related to environment, i.e. operating conditions
    • F16C2300/42—Application independent of particular apparatuses related to environment, i.e. operating conditions corrosive, i.e. with aggressive media or harsh conditions
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/42—Pumps with cylinders or pistons
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/61—Toothed gear systems, e.g. support of pinion shafts

Definitions

  • the invention relates to a method and a device for operating a tribologically loaded component, which at least partially made of at least one ceramic material
  • Tribologically loaded components of the type mentioned may be, for example, plain bearings or mechanical seals.
  • the invention is therefore based on the object of specifying a method and a device which extends a
  • the object of the invention is to optimize the friction behavior of a tribologically loaded component.
  • the influencing of the electrochemical potential may be effected by applying an electrical voltage or an electrical potential to at least one friction partner of the tribologically loaded component and / or at least one electrode
  • the life of ceramic components can be significantly increased by reducing the tribocorrosion.
  • the method can be used on all tribologically loaded components which at least partially consist of at least one ceramic material.
  • loaded components may include, for example, roller bearings, plain bearings or mechanical seals.
  • the ceramic materials may contain oxide and non-oxide ceramics structure or consist of, for example A1 2 0 3, Zr0 2, SiC, TiN, MoS 2 and / or Si 3 N 4.
  • the ceramic materials may in some embodiments of the invention contain unavoidable impurities that are introduced into the material during the manufacturing process.
  • the at least one tribologically loaded component may contain at least one friction partner, which consists of a ceramic or contains a ceramic.
  • the at least one further friction partner may also contain a ceramic or a metal or an alloy, or consist of it.
  • all friction partners of the tribologically loaded component may contain or consist of a ceramic. These may be the same ceramics or different ceramics.
  • the ceramic material has an electrical conductivity.
  • the resistivity of the material may range from about 10 2 ohm-cm to 10 5 ohm-cm.
  • the electrical conductivity can be set, for example, by dopants, which are added to the ceramic material in a targeted manner. In this way, the friction and wear behavior of the tribologically loaded component on the
  • the dopant can take on additional functions in the material, for example as a sintering aid.
  • a potential difference between the first electrode and the component, which is smaller than the corrosion potential is maintained by means of a voltage source.
  • Corrosion potential is that potential at which the electrical current flow from the voltage source between the first electrode and the component is minimal.
  • a second electrode may be provided which serves to detect an actual value of the electrochemical potential.
  • the inventive method can be carried out with a device which in its essential structure of a
  • Component at least partially immersed in some embodiments of the invention may be an ionic liquid or a lubricant with electrically conductive additives.
  • the liquid medium may contain a dilute acid or dilute liquor.
  • the liquid medium may contain a saline solution.
  • the liquid medium may be at least partially formed by the conveying medium or the fluid to be delivered.
  • the pump housing or the fluid channels arranged in the pump housing can be configured as a device for receiving the liquid medium, so that the application of the invention with an electrical potential can be integrated in a particularly simple manner in a known per se pump.
  • the liquid medium may be at least partially formed by the transmission oil.
  • the transmission housing or fluid passages arranged in the transmission housing can be designed as a device for receiving the liquid medium, so that the loading of at least one tribologically loaded component according to the invention with an electrical device
  • Figure 1 shows the tribological test principle, based on which
  • Figure 2 shows the essential components of the invention in the form of a block diagram.
  • FIG. 3 shows measurement curves by means of which the corrosion potential can be determined.
  • Figure 4 shows the friction coefficient of a tribological
  • FIG. 5 shows the wear behavior of a tribological one
  • this designation serves to distinguish between two similar characteristics without defining a ranking.
  • FIG. 1 shows the tribological test principle by means of which the mode of operation of the invention is explained in more detail.
  • the tribological behavior of a pin 20 is examined, which runs on a disc 10 under a predetermined axial force.
  • the pin 20 is stationary in a holder 21.
  • the pin 20 may be detachably connected to the bracket 21.
  • the relative movement between the pin 20 and the disc 10 by rotation of the disc 10 is made possible.
  • the disc 10 is connected to a shaft 12, which is rotated by means of a drive, not shown, in rotation.
  • a drive not shown
  • the disk 10 and the pin 20 form an example of a tribologically loaded component 1.
  • the tribologically loaded component 1 can also assume other geometric configurations and, for example, the geometric shape of a rolling bearing known per se Plain bearing or one
  • the device 30 for receiving a liquid medium 31.
  • the device 30 is an open-topped container which can be filled through the upper opening with the liquid medium 31, the tribologically loaded component 1 and further electrodes explained in more detail with reference to FIG ,
  • the device 30 may be the housing of a machine or a device, or a part of such a housing.
  • the device 30 may represent at least a portion of a pump housing, wherein the liquid medium 31 with the
  • the tribologically loaded component 1 may be a mechanical seal, a sliding bearing and / or a roller bearing, which seals or supports a rotating component in contact with the fluid.
  • FIG. 1 thus illustrates a load case of continuous, rotating load, which can cause other coefficients of friction and / or a different wear pattern than the load case of oscillating movement.
  • the liquid medium 31 may have an electrical conductivity.
  • the liquid medium 31 may be an ionic liquid, a saline solution, a dilute one
  • the liquid medium 31 may contain or consist of an oil or a fat.
  • the friction partners 20 and 10 contain at least one ceramic material.
  • the ceramic material can be an oxidic
  • the material may be a non-oxide structural ceramic.
  • the material A1 may contain 2 0 3 , Zr0 2 , TiN, MoS 2 , SiC, and / or Si 3 N 4 . In order to enable a current flow caused by the applied potential via the tribologically loaded component, in some embodiments this may have a specific resistance of approximately 10 2 ohm-cm to approximately 10 5 ohm-cm.
  • the ceramic material may contain at least one dopant which influences the electrical conductivity.
  • exactly one friction partner may consist of a ceramic or contain a ceramic.
  • the at least one further friction partner then contains a metal or an alloy or consists of a metal or an alloy.
  • the friction partners may form an electrically conductive connection to
  • the friction partners may consist of a ceramic or contain a ceramic. In this case, a friction partner with the
  • FIG. 2 schematically shows a tribologically loaded component 1, which is arranged in a device 30 in a liquid medium 31. Furthermore, there is an electrode 2 in the device 30.
  • the electrode 2 can be made as a counterelectrode from a platinum-containing material.
  • the first electrode 2 is connected to a first pole of a voltage source 43 and the at least one component 1 to a second pole of the voltage source 43.
  • the contact takes place on a fixed part of the component 1. In this way, forms between the
  • Component 1 and the first electrode 2 an electric field in the liquid medium 31 from.
  • the current flowing between the component 1 and the first electrode 2 through the liquid medium 31 can be determined by means of a measuring device 42.
  • Voltage source 43 may be a reversible voltage source
  • Electrode 2 is connected, occasionally a plus pole or a
  • the second pole which is connected to the component 1
  • Voltage source 43 a voltage with an amount between
  • the voltage source 43 may provide a voltage between 0 volts and 2 volts.
  • Electrode 3 may be arranged.
  • the second electrode 3 can be used as a reference electrode. She can do that for herself be known Ag / AgCl electrode. If a second electrode 3 is used, the tribologically loaded component 1, the first electrode 2, the second electrode 3, the device 30 and the liquid medium 31 can form a structure which is similar to or similar to a three-electrode electrochemical measuring arrangement. By means of the second electrode 3 and a measuring device 41, an electrical voltage can be measured. The value measured in this way can be considered
  • Voltage measuring device 41 can be used in a potentiostat 40
  • the potentiostat 40 may include other means, not shown, such as a user interface, by means of which a desired value for a
  • control device should be present to one
  • the potentiostat 40 may include means for
  • the potentiostat 40 may interface with a computer 50.
  • Computer 50 may be used to control the electrical current and / or voltage, to record measured current or voltage values, and / or to archive the data thus obtained.
  • the electrical current and / or voltage may be controlled by the electrical current and / or voltage, to record measured current or voltage values, and / or to archive the data thus obtained.
  • computer 50 may include corrosion potential detection software or automated computer software Determining a setpoint for the current and / or the voltage to be applied.
  • FIGS. 3 to 5 show measurement results obtained with the structure described with reference to FIGS. 1 and 2.
  • the liquid medium 31 contained a 3.5% solution of NaCl.
  • FIG. 3 shows in curve A the friction coefficient measured between the pin 20 and the disk 10 on the right
  • Voltage source 43 applied and determined with the measuring device 41 certain potential. It is in some way
  • the negative pole of the voltage source with the component 1 gem.
  • FIG. 3 shows that the application of a low electrical voltage initially causes an increase in the coefficient of friction. As the amount of electrical voltage increases, the coefficient of friction initially remains constant while the measured current density decreases. At about 216.5 mV shows the
  • the measured current density a minimum. As the magnitude of the potential increases further, the current density B increases again.
  • the location of the minimum of the current density B is referred to as corrosion potential in the present specification.
  • de-energized output decreases when the electrochemical potential is lower than the corrosion potential. In this way, the friction can be reduced or increased by the application of an electric potential.
  • FIG. 4 shows the measured friction coefficient on the
  • Curve A shows the coefficient of friction for an electrochemical potential of +300 mV.
  • Curve B shows the coefficient of friction for an electrochemical potential of +300 mV.
  • Curve C represents the measured values obtained at an electrochemical potential of -300 mV.
  • Curve C shows the coefficient of friction when an electrochemical potential at the level of the corrosion potential has been applied.
  • Curve D finally represents measured values which were obtained when the potentiostat 40 was switched off.
  • the coefficient of friction shows an average level of about 0.06 both with no applied voltage and with an applied voltage corresponding to the corrosion potential. In this case, the applied voltage has almost no influence on the friction behavior.
  • FIG. 4 shows that the measured friction coefficients remain at a virtually constant value after a few minutes. After about 10 minutes were switched off the applied voltages. As a result, the coefficient of friction converges very rapidly to a value of about 0.1.
  • FIG. 4 thus shows that the friction behavior of a tribological
  • the loaded component can be influenced by the applied electrical potential. This makes it possible for the first time to specifically influence the run-in behavior, the long-term behavior and the running behavior in phases of extreme stress. As a result, the life of tribologically loaded components made of a ceramic material or the behavior of a device containing the device can be influenced in a simple manner.
  • FIG. 5 shows the surface wear on the basis of the bars A on the left ordinate and the wear depth on the basis of the measured values B on the right ordinate.
  • FIG. 5 illustrates that the surface wear
  • Corrosion potential corresponds to maximum. Although the friction coefficient increases by applying a larger potential, as already explained with reference to FIG. 4, both the surface wear and the wear depth substantially decrease. Completely surprisingly it turned out that at one
  • deployment safety may increase.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sliding-Contact Bearings (AREA)
  • Lubricants (AREA)

Abstract

L'invention concerne un procédé pour faire fonctionner un composant sous sollicitation tribologique, composant qui est constitué, au moins partiellement, par au moins un matériau céramique, ledit composant (1) étant mis en action dans un milieu liquide (31) dans lequel est immergée une première électrode (2) qui est connectée avec un premier pôle d'une source de tension (43), le composant (1) étant connecté avec un second pôle de la source de tension (43), et le matériau céramique étant électro-conducteur. L'invention concerne en outre un dispositif destiné à faire fonctionner un composant (1) sous sollicitation tribologique, qui est constitué, au moins partiellement, par au moins un matériau céramique qui est électro-conducteur, le dispositif comprenant en outre un système (30) de réception d'un milieu liquide (31), de façon que le composant (1) puisse être immergé, au moins partiellement, dans le milieu liquide (31), une première électrode (2), pouvant être connectée avec un premier pôle d'une source de tension (43), étant introduite dans ledit milieu liquide (31), et ledit composant (1) pouvant être connecté avec un second pôle (43) de la source de tension (43).
PCT/EP2011/052645 2010-02-26 2011-02-23 Dispositif et procédé pour faire fonctionner un composant sous sollicitation tribologique WO2011104252A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010009507.9 2010-02-26
DE102010009507.9A DE102010009507B4 (de) 2010-02-26 2010-02-26 Verfahren und Vorrichtung zum Betrieb eines tribologisch belasteten Bauteils

Publications (1)

Publication Number Publication Date
WO2011104252A1 true WO2011104252A1 (fr) 2011-09-01

Family

ID=44065450

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/052645 WO2011104252A1 (fr) 2010-02-26 2011-02-23 Dispositif et procédé pour faire fonctionner un composant sous sollicitation tribologique

Country Status (2)

Country Link
DE (1) DE102010009507B4 (fr)
WO (1) WO2011104252A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106769583A (zh) * 2017-01-19 2017-05-31 北京科技大学 一种旋转式摩擦电化学测试装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1982171U (de) 1967-03-21 1968-03-28 Jakob Rusch Inhaber Willi Rusc Schleifring-dichtung.
EP1188942A1 (fr) * 2000-09-14 2002-03-20 Wacker-Chemie GmbH Corps moule avec revêtement en graphite formé de carbure de silicium fritté

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1982171U (de) 1967-03-21 1968-03-28 Jakob Rusch Inhaber Willi Rusc Schleifring-dichtung.
EP1188942A1 (fr) * 2000-09-14 2002-03-20 Wacker-Chemie GmbH Corps moule avec revêtement en graphite formé de carbure de silicium fritté

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
BRATU ET AL: "Tribocorrosion behaviour of Ni-SiC composite coatings under lubricated conditions", SURFACE AND COATINGS TECHNOLOGY, ELSEVIER, AMSTERDAM, NL, vol. 201, no. 16-17, 13 April 2007 (2007-04-13), pages 6940 - 6946, XP022025799, ISSN: 0257-8972, DOI: DOI:10.1016/J.SURFCOAT.2006.12.027 *
FEDRIZZI ET AL: "Tribocorrosion behaviour of HVOF cermet coatings", CORROSION SCIENCE, OXFORD, GB, vol. 49, no. 7, 21 May 2007 (2007-05-21), pages 2781 - 2799, XP022086909, ISSN: 0010-938X, DOI: DOI:10.1016/J.CORSCI.2007.02.003 *
ISMAIL M N F ET AL: "Surface potential effects on friction and abrasion of sliding contacts lubricated by aqueous solutions", WEAR, ELSEVIER SEQUOIA, LAUSANNE, CH, vol. 267, no. 11, 29 October 2009 (2009-10-29), pages 1978 - 1986, XP026684324, ISSN: 0043-1648, [retrieved on 20090616], DOI: DOI:10.1016/J.WEAR.2009.06.007 *
LANDOLT D ET AL: "Electrochemical methods in tribocorrosion: a critical appraisal", ELECTROCHIMICA ACTA, ELSEVIER SCIENCE PUBLISHERS, BARKING, GB, vol. 46, no. 24-25, 15 August 2001 (2001-08-15), pages 3913 - 3929, XP004307276, ISSN: 0013-4686, DOI: DOI:10.1016/S0013-4686(01)00679-X *
S. BARRIL, S. MISCHLER, D. LANDOLT: "Triboelectrochemical investigation of the friction and wear behaviour of TiN coatings in a neutral solution", TRIBOLOGY INTERNATIONAL, vol. 34, 2001, pages 599 - 608, XP002640917 *
S. MISCHLER: "Triboelectrochemical techniques and interpretation methods intribocorrosion: A comparative evaluation", TRIBOLOGY INTERNATIONAL, vol. 41, 2008, pages 573 - 583, XP002640918, DOI: doi:10.1016/j.triboint.2007.11.003 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106769583A (zh) * 2017-01-19 2017-05-31 北京科技大学 一种旋转式摩擦电化学测试装置
CN106769583B (zh) * 2017-01-19 2023-06-23 北京科技大学 一种旋转式摩擦电化学测试装置

Also Published As

Publication number Publication date
DE102010009507A1 (de) 2011-09-01
DE102010009507B4 (de) 2014-09-11

Similar Documents

Publication Publication Date Title
DE69727485T2 (de) Elektrochemischer sensor
DE3586435T2 (de) Verfahren zur ueberwachung der konzentrationen von metallischen ionen in metallisierbaedern.
DE69731539T2 (de) Leitfähigkeitsmessung mit einer einzigen elektrode
JPH0593713A (ja) 完全な油分析技法
EP2505999A1 (fr) Procédé de mesure du degré de dégradation/altération d'une huile lubrifiante et dispositif de mesure correspondant
DE60109367T2 (de) Wälzlagereinheit
EP2294656A1 (fr) Composant présentant une couche dans laquelle sont incorporés des cnt (nanotubes de carbone), et son procédé de production
DE2208275A1 (de) Vorrichtung zum Ermitteln der Ab nutzung einer Flache eines Maschinen elements
AT521457B1 (de) Sensor zur Erfassung von Fluideigenschaften
DE102011087821A1 (de) Gleitelement
WO2012095103A1 (fr) Tête de soudage à électrode mobile et procédé de soudage associé
DE69013670T2 (de) Verfahren zum Herstellen einer polarisierten Elektrode für einen elektrischen Doppelschichtkondensator.
EP0632208B1 (fr) Matériau composite pour palier au glissement
WO2011104252A1 (fr) Dispositif et procédé pour faire fonctionner un composant sous sollicitation tribologique
DE2751925C2 (fr)
WO2019170639A1 (fr) Procédé de fonctionnement d'un capteur pour détecter au moins une fraction d'un composant gazeux mesuré, lié à de l'oxygène, dans un gaz de mesure
DD156846A5 (de) Verfahren und vorrichtung zum messen von elektrkinetischen erscheinungen an grenzflaechen
GB2125067A (en) A process for the surface treatment of ferrous metal surfaces
Yurchenko et al. Al-Sn nanostructured coatings on aluminum surfaces using electrospark alloying and their wear behawior
EP3695473B1 (fr) Élément résistant de bougie d'allumage avec proportion de phase de zrsio4 augmentée
DE102021211095B4 (de) Verfahren zur tribometrischen Charakterisierung einer Oberfläche
DE102018004653B3 (de) Elektrochemischer Sensor mit einem gemeinsamen Elektrolytvolumen für Arbeits- und Referenzelektrode
DE2522926B2 (de) Verfahren zum kontinuierlichen Galvanisieren von langgestrecktem Aluminiummaterial
DE1219690B (de) Elektrischer Schaltkontakt fuer hohe Schalthaeufigkeit aus einer mit Quecksilber amalgamierten Silberlegierung
AT521991B1 (de) Verfahren und vorrichtung zum bestimmen des alterungszustands eines schmierstoffs eines lagers

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11705527

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11705527

Country of ref document: EP

Kind code of ref document: A1