Ball-on-disc test

The ball-on-disc test is a method used to evaluate how resistant a material is to wear and surface damage. It involves rotating a disc made of the material being tested and pressing a small, hard ball onto its surface with a specific force. As the disc spins, the ball repeatedly contacts the surface, causing wear. By measuring the extent of wear or damage afterward, scientists can compare how different materials perform under similar conditions. This test helps determine a material’s durability and suitability for applications where surfaces endure friction and contact.