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Monday, July 27, 2020 | History

2 edition of Lubrication and failure mechanisms of molybdenum disulfide films found in the catalog.

Lubrication and failure mechanisms of molybdenum disulfide films

Robert L. Fusaro

Lubrication and failure mechanisms of molybdenum disulfide films

by Robert L. Fusaro

  • 88 Want to read
  • 30 Currently reading

Published by National Aeronautics and Space Administration, Scientific and Technical Information Office, for sale by the National Technical Information Service in [Washington], Springfield, Va .
Written in English

    Subjects:
  • Molybdenum alloys.,
  • Solid lubricants -- Testing.,
  • Mechanical wear -- Measurement.,
  • Friction -- Tables.

  • Edition Notes

    StatementRobert L. Fusaro, Lewis Research Center.
    GenreTables.
    SeriesNASA technical paper ; 1343, NASA technical paper ; 1379, NASA technical paper -- 1343., NASA technical paper -- 1379.
    ContributionsUnited States. National Aeronautics and Space Administration. Scientific and Technical Information Office.
    The Physical Object
    Pagination2 v. :
    ID Numbers
    Open LibraryOL17819051M

    Nanostructured molybdenum disulfide thin films were deposited on various substrates by direct current (DC) electrolysis form aqueous electrolyte containing molybdate and sulfide ions. Post deposition annealing at higher temperatures in the range –°C transformed the as-deposited amorphous films to nanocrystalline by: 8. Valvoline SynPower Synthetic Automotive Grease - oz (VV) "Good Grease. Can Never Find Locally" - by Brian. Good grease. I've never been able to find this specific Valvoline grease in any of my local stores. My main requirement for grease is that it is fortified with Moly. I use it on everything from rod ends, u-joints, and driveshaft cv.

    Other articles where Molybdenum disulfide is discussed: lubrication: Solid lubricants.: materials such as graphite and molybdenum disulfide, commonly called molysulfide, have a crystal lattice structure arranged in layers. Strong bonds between atoms within a layer and relatively weak bonds between atoms of different layers allow the lamina to slide on one another. Boundary Lubrication and Lubricants Seiichro Hironaka School of Engineering, Tokyo Institute of Technology 1. Introduction The term tribology has been used for 18 years to refer to the branch of engineering that deals with friction, wear, and lubrication. Tribology is defined as "the science and technology of interacting surfaces.

    Lubricants (ISSN ; CODEN: LUBRCF) is an international peer-reviewed open access journal of tribology. Lubricants is published monthly online by MDPI.. Open Access - free for readers, with article processing charges (APC) paid by authors or their institutions.; High Visibility: Indexed in the Emerging Sources Citation Index (ESCI) in Web of Science (from Vol. 3), . Fusaro RL, United States National Aeronautics and Space Administration, Scientific and Technical Information Office () Lubrication and failure mechanisms of molybdenum disulfide films. National Aeronautics and Space Administration, Scientific and Technical Information Office; For sale by the National Technical Information Service Cited by:


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Lubrication and failure mechanisms of molybdenum disulfide films by Robert L. Fusaro Download PDF EPUB FB2

SUMMARY The friction, wear, and wear life of rubbed molybdenum disulfide (MoS2) films were studied in a pin-on-disk sliding friction and wear films were applied to C HT (high temperature modified) stainless-steel disks with three surface finishes - polished ( pm CLA), sanded ( pm CLA), and sandblasted (File Size: 2MB.

Get this from a library. Lubrication and failure mechanisms of molybdenum disulfide films. [Robert L Fusaro; United States.

National Aeronautics and Space Administration. Scientific and Technical Information Office.]. LUBRICATION AND FAILURE MECHANISMS OF MOLYBDENUM DISULFIDE FILMS I - EFFECT OF ATMOSPHERE by Robert L.

Fusaro Lewis Research Center SUMMARY Friction, wear, and wear life of molybdenum disulfide (M0S2) films rubbed on C HT (high temperature modified) steel disks were studied in a pin-on-disk sliding friction Size: 2MB.

Purchase Molybdenum Disulphide Lubrication, Volume 35 - 1st Edition. Print Book & E-Book. ISBNIn the s and the early s there was an enormous volume of research and development into the subject of molybdenum disulphide lubrication, much of which was supported by national governments for the benefit of defence, aviation or space activities.

There were already some well-established practical guidelines for deciding when and how to use molybdenum. One of the primary objectives of this book is to analyse the various aspects of molybdenum disulphide lubrication technology about which there are still disagreements or controversy, and to attempt to come to firm conclusions about some of the mechanisms by: The compound is classified as a transition metal is a silvery black solid that occurs as the mineral molybdenite, the principal ore for molybdenum.

MoS 2 is relatively unreactive. It is unaffected by dilute acids and appearance and feel, molybdenum disulfide is similar to is widely used as a dry lubricant because of its low friction and Chemical formula: MoS, ₂.

Molybdenum disulfide is classified as a transition metal dichalcogenide (TMD) which includes the disulfides, diselenides and ditellurides of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, and W.

These compounds exist in various crystalline forms but only the Mo and W compounds formFile Size: KB. Lubrication and lubricants are the most important aspect for running a machine without giving pre-matured failure.

It is also used to minimize power loss, heat generation, wear and tear of Author: Suraj Kumar Vishwakarma. Molybdenum Disulfide is a dry film lubricant and is widely used as a friction-reducing additive to coatings, greases and waxes.

Molybdenum disulfide coatings or MoS2 is an inorganic compound used as a coating solution for critical parts and equipment. Kannadi Palankeezhe Balan, in Metallurgical Failure Analysis, Effective lubrication is the prime requirement in the smooth functioning of devices wherein moving parts are in contact.

Lubricating oils, grease, and solid lubricants like molybdenum. molybdenum disulfide crystals shearing along their lamella is approximatelyamong the lowest known for any material6. The lamellae tend to align and adhere to contact surfaces, particularly under conditions of sliding and pressure, as shown in Fig 2.

This “burnishing in” of the molybdenum disulfide gives it. Years ago I used a product called Moly-slip which I think was molybdenum disulfide. After a few years the car was getting kinda tired and the oil pressure was dropping. I stopped using it since the car wasn't going to last much longer anyway.

The oil pressure came back up and it ran bet. Lubrication is the process or technique of using a lubricant to reduce friction and wear and tear in a contact between two surfaces.

The study of lubrication is a discipline in the field of tribology. Lubricants can be solids (such as molybdenum disulfide MoS 2), solid/liquid dispersions (such as grease), liquids (such as oil or water), liquid-liquid dispersions [citation needed] or gases. “Effect of Substrate Surface Finish on the Lubrication and Failure Mechanisms of Molybdenum Disulfide Films,” R.

Fusaro, American Society of Lubrication Engineers Transactions, 25, – () Google ScholarCited by: 2. R.L. Fusaro, Lubrication and Failure Mechanisms of Molybdenum Disulfide Films.

Part I. Effect of Atmosphere (NASA TP, Washington, ) Google Scholar R.M. Gresham, Bonded solid film lubricants, in Tribology Data Handbook: An Excellent Friction, Lubrication, and Wear Resource, ed.

by E.R. Booser (CRC Press, Boca Raton, ), p. Molybdenum disulfide because of its layered structure is an effective lubricant. When MoS2 particles are located between moving surfaces the MoS2 layers slide over each other, permitting the surfaces of steel and other metals to move fluidly, even under severe pressures, as.

Purchase Mechanics and Chemistry in Lubrication - 1st Edition. Print Book & E-Book. ISBNBook Edition: 1. of lubrication fail. MECHANISM OF FRICTION IN MOLYBDENUM DISULFIDE Although molybdenum disulfide has long been known to exhibit a low coeffi- cient of friction, the reason for this behavior has been the subject of much research and speculation.

Because of the similarities between MO& and graphite the early. However, recent studies of sputtering have given strong indications that thin residual films of sputtered molybdenum disulphide only a few hundred ~ thick can provide useful lubrication in practical engineering components, and this will be discussed in the next chapter, It is therefore difficult to avoid the conclusion that where molybdenum.

An optical microscope was used to study the lubrication and failure mechanisms of rubbed (burnished) MoS2 films applied to three substrate surface finishes - polished, sanded, and sandblasted - as.Molybdenum disulfide (MoS2) is one of the most broadly utilized solid lubricants with a wide range of applications, including but not limited to those in the aerospace/space industry.

Here we present a focused review of solid lubrication with MoS2 by highlighting its structure, synthesis, applications and the fundamental mechanisms underlying its lubricative properties, together Cited by: 8.Applications for Lubrication. PAGE 1. The science of Molybdenum Disulfide is well established in the industrial community.

Scientific and industrial literature describes Molybdenum Disulfide (MoS2) as a naturally occurring relatively inert, chemically stable, practically non-corrosive, non-toxic mineral commercially mined in Colorado, Idaho and.