Rolling Wear Mechanism of Ceramics by SEM Observation

SEM 관찰에 의한 세라믹의 구름마모기구

  • Kim, Seock-Sam (Department of Mechanical Engineering, College of Engineering, Kyungpook National University) ;
  • Kato, Kohji (Department of Mechanical Engineering, Tohoku University) ;
  • Hokkirigawa, Kazuo (Department of Mechanical Engineering, Tohoku University)
  • Published : 1989.04.01


Scanning electron microscopic observations were carried out on the worn surface and the wear debris of ceramic materials to investigate the wear mechanism of those in dry rolling contact. It was found from the scanning electron microscopic observations that the wear in ceramic materials is related to brittle fracture and has two types of wear mechanisms, small scale wear and larvae scare wear. Plate-like wear debris were created from the initial surface cracks and defects. The small scale wear was related to real contact area and large scale wear was related to HertzJan contact area. A wear model was proposed on the basis of scanning electron microscopic observations.