ISO 23146:2008 精细陶瓷（高级陶瓷、高级工业陶瓷） 单片陶瓷的断裂韧性试验方法 单刃V形切口梁法（SEVNB）

标准编号：ISO 23146:2008

中文名称：精细陶瓷（高级陶瓷、高级工业陶瓷） 单片陶瓷的断裂韧性试验方法 单刃V形切口梁法（SEVNB）

英文名称：Fine ceramics (advanced ceramics, advanced technical ceramics) — Test methods for fracture toughness of monolithic ceramics — Single-edge V-notch beam (SEVNB) method

发布日期：2008-06

标准范围

ISO 23146:2008规定了测定高级工业陶瓷断裂韧性的方法。该程序使用单边V形缺口钢筋，在四点弯曲中加载，直至失效。它适用于晶粒尺寸或主要微观结构特征尺寸大于约1μm的单片陶瓷。不建议对钇四方氧化锆多晶材料（Y-TZP）使用ISO 23146:2008。该方法也可能不适用于其他一些非常坚硬或柔软的陶瓷，其中V形裂纹的根部不会形成尖锐裂纹-缺口

ISO 23146:2008 specifies a method for the determination of the fracture toughness of advanced technical ceramics. The procedure makes use of single-edge V-notched bars, which are loaded in 4-point bending until failure. It is applicable to monolithic ceramics with a grain size or major microstructural feature size larger than about 1 μm.The use of ISO 23146:2008 for yttria tetragonal zirconia polycrystal material (Y-TZP) is not recommended. The method might also be unsuitable for some other very tough or soft ceramics in which a sharp crack does not form at the root of the V-notch.

标准预览图