标准编号：ISO 21618:2019
中文名称：精细陶瓷（高级陶瓷，高级工业陶瓷） 用压痕断裂（IF）法测定整体陶瓷在室温下的抗裂性的试验方法
英文名称：Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for fracture resistance of monolithic ceramics at room temperature by indentation fracture (IF) method
发布日期：2019-02
标准范围
This document describes a test method that covers the determination of fracture resistance of
monolithic ceramics at room temperature by the indentation fracture (IF) method.
This document is intended for use with dense monolithic ceramics and whisker- or particulate-
reinforced ceramics which are regarded as macroscopically homogeneous. It does not include monolithic
silicon nitride ceramics for bearing balls and continuous-fibre-reinforced ceramics composites.
This document is for material development, material comparison, quality assurance, characterization
and reliability data generation.
Indentation fracture resistance, KI,IFR , as defined in this document is not to be equated with fracture
toughness determined using other test methods such as KIsc and KIpb .
NOTE K I,IFR is an estimate of a material’s resistance to cracking as introduced by an indenter and has
correlations with wear resistance and rolling contact fatigue performance as well as machining processes, since
these properties are governed by the resistance to crack extension in localized damage areas . By contrast,
fracture toughness properties K and K are intrinsic properties of a material and are relevant to macroscopic
Isc Ipb and catastrophic fracture events with long cracks rather than those phenomena caused by microscopic and
successive damage accumulation associated with short cracks.
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