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WO2009109849A1 - Composé antifriction, anti-usure - Google Patents

Composé antifriction, anti-usure Download PDF

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Publication number
WO2009109849A1
WO2009109849A1 PCT/IB2009/000447 IB2009000447W WO2009109849A1 WO 2009109849 A1 WO2009109849 A1 WO 2009109849A1 IB 2009000447 W IB2009000447 W IB 2009000447W WO 2009109849 A1 WO2009109849 A1 WO 2009109849A1
Authority
WO
WIPO (PCT)
Prior art keywords
compound according
oil
composition
compound
reported
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.)
Ceased
Application number
PCT/IB2009/000447
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English (en)
Inventor
Franco Coccollone
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.)
NANOTEK Srl
Original Assignee
NANOTEK Srl
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 NANOTEK Srl filed Critical NANOTEK Srl
Priority to EP09718496A priority Critical patent/EP2250243A1/fr
Publication of WO2009109849A1 publication Critical patent/WO2009109849A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • C10M171/06—Particles of special shape or size
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
    • C10M2201/041—Carbon; Graphite; Carbon black
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
    • C10M2201/05—Metals; Alloys
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/061—Carbides; Hydrides; Nitrides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/10—Compounds containing silicon
    • C10M2201/105—Silica
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/16—Groups 8, 9, or 10
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/055—Particles related characteristics
    • C10N2020/06—Particles of special shape or size
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/02—Bearings
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Form in which the lubricant is applied to the material being lubricated semi-solid; greasy

Definitions

  • the subject of the present invention is an antifriction and wear- resistant compound for mechanical groups in general, such as gears, differentials and the like.
  • the undersigned company filed a patent application (TO2007A000132) having as subject a substance composed of very small particles, comparable to atomic size, effective against wear phenomena in very limited quantities and not contaminating the lubricant.
  • Said substance comprises at least one reagent selected from among silica, graphite, diamond, aluminium, copper and nickel, and is obtained by means of a very strong grinding such to obtain particles with size not greater than 15 nm.
  • the results obtained with such additive were very promising and encouraged the undersigned company to carry out further research projects on the matter.
  • Object of the present finding is an antifriction and wear-resistant compound which constitutes an improvement of the preceding invention and increases the fields of application, and whose characteristics are specified in claim 1.
  • This is an additive with high lubricating power, with high heat conductivity, and is permanent even after the substitution of the lubricant.
  • It is the product of nanotechnology and is composed of nanoparticles of mineral and metallic origin which fill the empty spaces and pores of the metals and treat the regions subjected to osmosis and wear with a permanent membrane, with low friction coefficient and high heat resistance.
  • the compound remains chemically stable up to over 1100 0 C, abundantly exceeding the performances required in the internal combustion heat engines.
  • the present compound also carries out an exceptional action as solid lubricant, during cold ignition, a time when the danger of wear is greater; here, in the first revolutions, the lubricating liquid has not yet come into circulation, and the contact between the surfaces generate strong resistance and causes deep abrasions.
  • the subject of the present finding is a tribotechnical substance, i.e. a compound with friction reduction properties, as well as a regenerator of the worn parts, and is carried by any lubricant (oil or grease). It comprises at least one from among the following reagents: silicon - as a pure element, in the form of an oxide, or silica, and as silicon nitride -, copper, nickel, zinc, aluminium or alumina - all present in nanopowder form. It also comprises an oily liquid phase in which said nanopowders are in suspension.
  • the reagents can be separately used, in pure form, or in a mixture thereof, as a function of the desired performances.
  • silicon in oxidised form or nitride form, can be used in pure form.
  • silicon nitride in high percentages, up to 100%, a compound is obtained with excellent qualities, applicable in new engines or in those in optimal wear condition.
  • the nanotechnique applied in the present invention makes use of polymers of fossil and synthetic nature, minerals and metals ground into extremely small particles, on the order of several millionths of a millimetre - due to the size and polarisation the particles are oriented by the electric field, incorporate the heavy metals present in the oil (residue of the wear effect) and prevent their subsequent release; in the friction zones, the heat developed by the mechanical pressing process forms microfusions between the particles which, by filling the free space give rise to the new compound.
  • a film is thus created over all the surfaces subjected to friction: in the case of gears, the sliding is improved between the toothing and also in the rolling axis, in the case of bearings, the noise and the vibrations are reduced, as these are passive effects of the friction.
  • the silicon nanoparticles if present, by means of mechanical pressure, temperature and plasticity of the metals, penetrate by expelling carbon in the friction points up to a depth of 100 - 300 nm; this depends on the mechanical pressure and hardness and porosity of the metals.
  • This element in addition to being used in pure form, can also be used as a carrier of other elements, for example the nitrogen in the Si 3 N 4 Indeed, using silicon nitride (S1 3 N 4 ), the carrier deeply bears the nitrogen, creating a film, i.e. an adiabatic barrier of silicon nitride of extreme hardness, with low friction coefficient and high heat shock resistance.
  • a further embodiment of the finding, suitable in the case of considerably worn mechanisms, if a protective film is required with high thickness comprised between 0.2 and 3 micron, is represented by the following:
  • the silicon nitride (Si 3 N 4 ) penetrates via mechanical pressure; the liquid copper subject to friction penetrates via osmosis of the metals, while the nickel, having very high hardness, is bonded to the copper at very high temperatures. Finally, the zinc at high temperatures creates very strong bonds between iron-carbon and the compound, generating a silicon nitride - copper - nickel film. According to a particular embodiment suitable for medium wear engines, the composition of the solid phase is reported in table 3:
  • Aluminium is inserted in the compound in order to restore the antifriction film of the bearings, in particular those of the crankshaft, both main and rod bearings.
  • the temperature of the motor oil (180 0 C) and the mechanical pressure act as catalyst, creating the aggregation condition of the material.
  • the liquid phase is composed, for all of the above-presented - compositions, of mineral oil in a volumetric percentage of 80%, synthetic oil ( 15%) and triol (5%).
  • FIG. 1 is an optical microscope comparison at various magnifications of a plate treated with the compound of the present invention (Fig. Ia), a plate which operated with a normal lubricant (Fig. Ib) and a plate that was not operated (Fig. Ic).
  • Fig. Ia a plate treated with the compound of the present invention
  • Fig. Ib a plate which operated with a normal lubricant
  • Fig. Ic a plate that was not operated
  • FIG. 2b is an extract from a zone at which the contact is only piston-cylinder and the segments are involved only to a limited extent; • Fig. 3, with increasing magnification, reports the images processed from scanning electron microscope (SEM) analysis of the plate of Fig. 1 treated with the compound of the present invention;
  • Fig. 4 reports the same images of Fig. 3, which are however referred to the plate of Fig. 1 treated with a normal lubricant.
  • the optical microscope analyses of the tappet plates first of all show a clear difference (even visible to the naked eye) between the plates which operated with the present compound (Fig. Ia) and the plates which operated with the normal lubricant (Fig. Ib).
  • the difference is not so much linked to the fairly substantial presence of scrapes on the surface from the cam-plate contact, which are present on all the plates, as it is to the morphology of the metallic submatrix.
  • the surface clearly appears rougher and thus more similar to the original component (never used inside the engine). In particular, it is observed in Fig.
  • Fig. 2a presents various affected zones, linked to the segment-cylinder contact. There is a first zone, between points 1 and 6, in which the contact occurs between the segments and the surface of the cylinder, while beyond point 6 there is no type of contact (at point 6, there is the end stop of the last segment and between 6 and 7 there is the scraper ring contact).
  • the preferred applications of the finding are internal combustion engines, gears, differentials, reducers, bearings and all the members subjected to friction, lubricated with oil or grease.
  • the fields of use therefore, extend to the entire transportation sector (automobile, naval, railway, aircraft), fixed industrial plants and ballistics.
  • the preferred metering, per square meter of surface subjected to friction is equal to 0.7 grams (+/- 30%) of powder in suspension in the oily liquid phase.
  • the ready-for-use compound is contained in syringes, diluted in percentage by about 0.14 g per ml in the aforesaid liquid.
  • the contents of a syringe will be equal to 5 ml, this amount being suitable, for example, for the treatment of an engine, gear or differential lubricated with 5 1 of oil.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Organic Insulating Materials (AREA)
  • Harvester Elements (AREA)

Abstract

L'invention concerne un composé antifriction et résistant à l'usure pour des ensembles mécaniques, comme des engrenages de boîtes de vitesse, des ensembles de différentiel et des ensembles similaires, comprenant une phase solide et une phase liquide, ladite phase solide étant en suspension et se caractérisant en ce qu'elle comprend au moins un élément parmi les suivants : silicium, silice, nitrure de silicium, graphite, diamant, cuivre, nickel, zinc, aluminium et alumine, tous présents sous forme de nanopoudre.
PCT/IB2009/000447 2008-03-06 2009-03-06 Composé antifriction, anti-usure Ceased WO2009109849A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09718496A EP2250243A1 (fr) 2008-03-06 2009-03-06 Composé antifriction, anti-usure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000172A ITTO20080172A1 (it) 2008-03-06 2008-03-06 Composto antiattrito antiusura
ITTO2008A000172 2008-03-06

Publications (1)

Publication Number Publication Date
WO2009109849A1 true WO2009109849A1 (fr) 2009-09-11

Family

ID=40293248

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/000447 Ceased WO2009109849A1 (fr) 2008-03-06 2009-03-06 Composé antifriction, anti-usure

Country Status (3)

Country Link
EP (1) EP2250243A1 (fr)
IT (1) ITTO20080172A1 (fr)
WO (1) WO2009109849A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2746369A1 (fr) * 2012-12-21 2014-06-25 Rewitec Gmbh Moyen destiné à être mélangé dans un lubrifiant pour une installation technique, concentré destiné à être mélangé dans un lubrifiant pour une installation technique
CN105219495A (zh) * 2015-10-13 2016-01-06 惠州市中壳润滑油有限公司 一种高效抗磨节能润滑油及其制备方法
CN108659918A (zh) * 2018-06-25 2018-10-16 河南科技大学 一种齿轮油添加剂、齿轮润滑油及其制备方法与应用

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005026607A2 (fr) * 2003-07-16 2005-03-24 Emerson Power Transmission Manufacturing, L.P. Palier pourvu d'un lubrifiant a nanoparticules anodiques
DE102004021812A1 (de) * 2004-04-30 2005-12-08 KLüBER LUBRICATION MüNCHEN KG Schmierfett, Verfahren zu dessen Herstellung und dessen Verwendung
WO2007082299A2 (fr) * 2006-01-12 2007-07-19 The Board Of Trustees Of The University Of Arkansas Compositions a base de nanoparticules et leurs procedes de production et d'utilisation
WO2007088649A1 (fr) * 2006-01-31 2007-08-09 Nissan Motor Co., Ltd. Compositions d'huile lubrifiante contenant des nanoparticules
RU2340658C1 (ru) * 2007-09-28 2008-12-10 Закрытое акционерное общество "Институт прикладной нанотехнологии" Смазочная композиция и смазочный материал, ее содержащий (варианты)

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DE19852203A1 (de) * 1998-11-12 2000-05-18 Henkel Kgaa Schmiermittel mit Feststoffpartikeln einer Teilchengröße unter 500 nm
US7749947B2 (en) * 2006-05-01 2010-07-06 Smith International, Inc. High performance rock bit grease

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005026607A2 (fr) * 2003-07-16 2005-03-24 Emerson Power Transmission Manufacturing, L.P. Palier pourvu d'un lubrifiant a nanoparticules anodiques
DE102004021812A1 (de) * 2004-04-30 2005-12-08 KLüBER LUBRICATION MüNCHEN KG Schmierfett, Verfahren zu dessen Herstellung und dessen Verwendung
WO2007082299A2 (fr) * 2006-01-12 2007-07-19 The Board Of Trustees Of The University Of Arkansas Compositions a base de nanoparticules et leurs procedes de production et d'utilisation
WO2007088649A1 (fr) * 2006-01-31 2007-08-09 Nissan Motor Co., Ltd. Compositions d'huile lubrifiante contenant des nanoparticules
EP1980609A1 (fr) * 2006-01-31 2008-10-15 Nissan Motor Co., Ltd. Compositions d'huile lubrifiante contenant des nanoparticules
RU2340658C1 (ru) * 2007-09-28 2008-12-10 Закрытое акционерное общество "Институт прикладной нанотехнологии" Смазочная композиция и смазочный материал, ее содержащий (варианты)

Non-Patent Citations (5)

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Title
PEDROSO M A S ET AL: "Hydrocarbon dispersion of nanospherical silica by a sol gel process. 2. Alkoxysilane copolymerization", COLLOID & POLYMER SCIENCE, SPRINGER VERLAG, HEIDELBERG, DE, vol. 281, 1 January 2003 (2003-01-01), pages 19 - 26, XP007909125, ISSN: 0303-402X *
REINDL A ET AL: "Dispersing silicon nanoparticles in a stirred media mill investigating the evolution of morphology, structure and oxide formation", PHYSICA STATUS SOLIDI (A). APPLIED RESEARCH, BERLIN, DE, vol. 204, no. 7, 1 January 2007 (2007-01-01), pages 2329 - 2338, XP007909111, ISSN: 0031-8965 *
See also references of EP2250243A1 *
WU ET AL: "Experimental analysis of tribological properties of lubricating oils with nanoparticle additives", WEAR, ELSEVIER SEQUOIA, LAUSANNE, CH, vol. 262, no. 7-8, 20 February 2007 (2007-02-20), pages 819 - 825, XP005895156, ISSN: 0043-1648 *
YA-LI LI ET AL: "LOW-COST HIGH-YIELD SYNTHESIS OF NANOSIZE POWDERS OF SI-BASED NITRIDES AND CARBIDES BY CO2 LASER INDUCED PAS PHASE REACTIONS", MATERIALS LETTERS, NORTH HOLLAND PUBLISHING COMPANY. AMSTERDAM, NL, vol. 22, no. 1/02, 1 January 1995 (1995-01-01), pages 87 - 92, XP000512252, ISSN: 0167-577X *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2746369A1 (fr) * 2012-12-21 2014-06-25 Rewitec Gmbh Moyen destiné à être mélangé dans un lubrifiant pour une installation technique, concentré destiné à être mélangé dans un lubrifiant pour une installation technique
US10240104B2 (en) 2012-12-21 2019-03-26 Rewitec Gmbh Agent for mixing into a service fluid for a technical layout, concentrate for mixing into a service fluid for a technical layout, and the service fluid
US11091717B2 (en) 2012-12-21 2021-08-17 Rewitec Gmbh Agent for mixing into a service fluid for a technical layout, concentrate for mixing into a service fluid for a technical layout, and the service fluid
CN105219495A (zh) * 2015-10-13 2016-01-06 惠州市中壳润滑油有限公司 一种高效抗磨节能润滑油及其制备方法
CN108659918A (zh) * 2018-06-25 2018-10-16 河南科技大学 一种齿轮油添加剂、齿轮润滑油及其制备方法与应用

Also Published As

Publication number Publication date
EP2250243A1 (fr) 2010-11-17
ITTO20080172A1 (it) 2009-09-07

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