Standard

ISO 4821:2022

Published

Corrigenda and amendments are bought separately.

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Abstract

This document specifies a procedure to measure the adhesion strength of diamond-like carbon (DLC) coatings specified in ISO 20523 by detecting acoustic emission signals using ball-on-disk method under the lubricated condition. DLC is normally coated on metal or ceramic. The test results are not applicable when the DLC coated parts operate in an unlubricated environment.

Document information

  • Standard from ISO
  • Published:
  • Edition: 1
  • Version: 1
  • Document type: IS
  • ICS 21.100.10
  • ISO TC ISO/TC 123/SC 7