Fine ceramics (advanced ceramics, advanced technical ceramics) -- Test method for fracture toughness of monolithic ceramics at room temperature by chevron-notched beam (CNB) method
ISO 24370:2005 is applicable to monolithic ceramics and whisker- or particulate-reinforced ceramics that are regarded as macroscopically homogeneous. It is not applicable to continuous-fibre reinforced ceramic composites.
ISO 24370:2005 is usually applicable to ceramic materials with a fracture toughness less than about 12 megapascal(square root metre). The test method is applicable to materials with a flat crack-growth resistance curve and may be applicable to materials with a rising crack-growth resistance curve (R-curve).