Error Analysis of Ceramic Materials Fracture Toughness Measured by the Single Edge Notched Beam Method

Jia Liang Wang; Xian Feng Shen; Meng Liang Bai; Gang Zhou; Mian Jiang

doi:10.4028/www.scientific.net/AMR.1004-1005.434

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1004-1005Error Analysis of Ceramic Materials Fracture...

Error Analysis of Ceramic Materials Fracture Toughness Measured by the Single Edge Notched Beam Method

Abstract:

In this study, the fracture toughness of ceramic materials such as Al₂O₃, SiC, Si₃N₄, ZrO₂ were measured by the SENB method and IF method respectively. The results shown that the value of fracture toughness obtained from the SENB method is significantly higher than the IF method. When the notch width is fixed, with the flexural strength of ceramic materials increasing, the error of fracture toughness from the SENB method compared to the IF method is increased. For example, the flexural strength of ZrO₂ is about 847MPa and the error of fracture toughness from the SENB method compared to the IF method is 50.14%, the flexural strength of Al₂O₃ is about 338MPa and the error of fracture toughness from the SENB method compared to the IF method is only 4.52%.

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Periodical:

Advanced Materials Research (Volumes 1004-1005)

Pages:

434-437

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1004-1005.434

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Online since:

August 2014

Authors:

Jia Liang Wang, Xian Feng Shen, Meng Liang Bai, Gang Zhou, Mian Jiang

Keywords:

Ceramic Material, Fracture Toughness, IF Method, SENB Method

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