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Title of Journal: Tribol Lett

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Abbravation: Tribology Letters

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Springer US

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DOI

10.1016/0006-3207(93)90737-l

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1573-2711

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Tribochemistry of Bulk Zinc Metaphosphate Glasses

Authors: Maura Crobu Antonella Rossi Filippo Mangolini Nicholas D Spencer
Publish Date: 2010/05/23
Volume: 39, Issue: 2, Pages: 121-134
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Abstract

Zinc polyphosphate glasses are the principal component of the antiwear tribofilms formed on steel surfaces in the presence of additives such as zinc dialkyldithiophosphates In this work amorphous zinc metaphosphate glasses have been synthesized and characterized by means of Xray diffraction XRD Fouriertransform infrared spectroscopy FTIR elemental analysis and Xray photoelectron spectroscopy XPS Tribological tests were performed by rubbing steel balls against the zinc metaphosphate discs in a polyαolefin PAO bath at room temperature XPS was used in order to characterize the tribostressed areas on both metaphosphate discs and steel balls A transfer film constituted of iron and zinc polyphosphates was formed on the contact area of the balls This transfer film was found to reduce friction and prevent ball wear A reduction in the relative intensities of XPS signals related to bridgingoxygen species and a binding energy shift of 04 eV of the P 2p toward lower values demonstrated the presence of shorterchainlength phosphates inside the tribotracks on the discs Furthermore iron was transferred to the glass during the tribological tests A tribochemical reaction between zinc metaphosphate and iron oxide has been proposed as an explanation for the depolymerization of the glass and the formation of iron phosphate


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  1. A Film Thickness Correction Formula for Double-Newtonian Shear-Thinning in Rolling EHL Circular Contacts
  2. An investigation into friction behaviour of dispersion-strengthened copper under severe railway braking conditions
  3. In Situ NbC Particulate-Reinforced Iron Matrix Composite: Microstructure and Abrasive Wear Characteristics
  4. The Role of Ferric Oxide Nanoparticles in Improving Lubricity and Tribo-Electrochemical Performance During Chemical–Mechanical Polishing
  5. Influence of Post-treatment on the Microstructural and Tribomechanical Properties of Suspension Thermally Sprayed WC–12 wt%Co Nanocomposite Coatings
  6. Lateral Vibration Analysis of Flexible Shafts Supported on Elliptical Journal Bearings
  7. Influence of Friction on Surface Asperity Flattening Process in Cold Uniaxial Planar Compression (CUPC)
  8. Effect of Surface Roughening of Substrate Steel on the Improvement of Delamination Strength and Tribological Behavior of Hydrogenated Amorphous Carbon Coating Under Lubricated Conditions
  9. Transmission Electron Microscopy Analysis of Mo–W–S–Se Film Sliding Contact Obtained by Using Focused Ion Beam Microscope and In Situ Microtribometer
  10. Effect of Chromium on Oxidation in Wear of Surface Nanocrystalline Martensite Steel
  11. Design of a New Tribometer for Tribological and Viscoelasticity Studies of PTFE Valve Seats
  12. Simulation of Hydrocarbon Oil Contamination at the Head–Disk Interface Using Molecular Dynamics
  13. Impact Abrasive Wear Response of Carbon/Carbon Composites at Elevated Temperatures
  14. Analyzing Periodic Signals in Rotating Pin-on-Disc Tribotest Measurements Using Discrete Fourier Transform Algorithm
  15. Frictional Voltammetry with Copper
  16. Polymer-Brush Lubrication in Oil: Sliding Beyond the Stribeck Curve
  17. Explanation for the mechanical strength of amyloid fibrils
  18. Experimental investigation of frictional and viscoelastic properties of intestine for microendoscope application
  19. The Role of Functional End Groups of Perfluoropolyether (Z-dol and Z-03) Lubricants in Augmenting the Tribology of SU-8 Composites
  20. Dissipation of Vibration in Rough Contact
  21. Movement of Entrapped Oil Under Pure Rolling Conditions
  22. Study on Surface Asperity Flattening in Cold Quasi-Static Uniaxial Planar Compression by Crystal Plasticity Finite Element Method
  23. High-Temperature Friction and Wear of Ag/h-BN-Containing Ni-based Composites Against Steel

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