Search results for: BALL–ON–FLAT

• WEAR OF Si OR B DOPED AMORPHOUS CARBON COATINGS

  Publication

  • K. Druet
  • J. Łubiński
  • A. Neyman

  - TRIBOLOGIA - Year 2016

  The paper describes a complex wear research on DLC (amorphous carbon) moped with boron (B) and silicone (Si). The tests were carried out in two different sliping systems: flat–on–flat (ring contact, unidirectional sliding) and ball–on–flat (reciprocating sliding). Water and medical saline solutions were used as lubricants. A comparative analysis of the results revealed differences in the initiation and progress of wear and the...

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• A Multi Rig Screening Test for Thin Ceramic Coatings in Bio - Tribological Applications

  Publication

  • J. Łubiński
  • K. Druet
  • A. Olszewski
  • A. Neyman
  • J. Sikora

  - Advances in Materials Science - Year 2010

  A method is presented for the comparative testing of wear resistance of ceramic coatings made from materials potentially feasible in tribo - medical applications, mainly orthopaedic implants made from ceramics coated metals for low cost, long life and low wear particle emission into the body. The method was devised as the main tool for use in research and is comprised of flat on flat and ball on flat surface (sliding) tests. Seven...

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• Wear of Ultra-thin DLC or Tungsten-modified DLC Coatings under Reciprocating Sliding

  Publication

  • K. Druet
  • J. I. Łubiński

  - Key Engineering Materials - Year 2012

  In the paper results are presented from tests in reciprocating sliding of self mated specimens of DLC and tungsten modified DLC coatings on stainless steel substrate. The contact geometry chosen for the research task was ball on flat. The contacts were lubricated either with distilled water or medical saline solution. Results are presented with regard to wear resistance as a function of material type and lubricant used.

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• Microstructure and Properties of Electroless Ni-P/Si3N4 Nanocomposite Coatings Deposited on the AW-7075 Aluminum Alloy

  Publication

  • K. Czapczyk
  • P. Zawadzki
  • N. Wierzbicka
  • R. Talar

  - Materials - Year 2021

  The article presents the results of mechanical and tribological tests of Ni-P/Si3N4 nanocomposite coatings deposited on the AW-7075 aluminum alloy using the chemical reduction method. The influence of the chemical composition on the Vickers microhardness determined by the DSI method was examined. The nanocomposite layers were made of Si3N4 silicon nitride in a polydisperse powder with a particle size ranging from 20 to 25 nm. The...

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