scope:

This International Standard describes a test method for the determination of fracture toughness of monolithic ceramic materials at room temperature by the Single Edge Precracked Beam (SEPB) method. This International Standard is intended for use with monolithic ceramics and whisker- or particulate-reinforced ceramics which are regarded as macroscopically homogeneous. It does not include continuous-fiberreinforced ceramic composites. This International Standard is for material development, material comparison, quality assurance, characterization, reliability and design data generation. Fracture toughness values determined with other test methods cannot be interchanged with KIpb as defined in this International Standard, and may not be interchangeable with each other. Values expressed in this International Standard are in accordance with the International System of Units (SI).