Geometrie trhlin vzniklých pod povrchem keramických materiálů při hodnocení indentační lomové houževnatosti

Abstract

Ceramics materials have got many excellent physical mechanical properties. They have got wide using in various technical branches. This dokument title is „Crack Geometry under Surface of Ceramic Materials by Evaluation of Indentation Fracture Toughness“ and detailed describe character cracks in ceramic. For enquiry into hardness and fracture toughness is used Vickers indentation method. At this dokument are clasiffication theese properties and cracks witch are outgoing from corners Vickers indention. For enquiry geometry theese cracks is used method of gradual removing surface layers in parallel direction with surface of specimen.