Evaluation of Elastic Modulus and Strength of Glass and Brittle Ceramic Materials by Compressing a Notched Ring Specimen

De Tian Wan; Yi Wang Bao; Xiao Gen Liu; Hua Zhao; Li Tian

doi:10.4028/www.scientific.net/AMR.177.114

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 177Evaluation of Elastic Modulus and Strength of...

Evaluation of Elastic Modulus and Strength of Glass and Brittle Ceramic Materials by Compressing a Notched Ring Specimen

Abstract:

A simple and new method was introduced to measure the elastic modulus and strength of glass and brittle ceramic materials at different temperatures by compressing a notch ring specimen. For a notch ring specimen, the maximum tensile stress is generated in the outside of the testing sample at half of the height under an applied load. During the elastic deformation range, the elastic modulus can be calculated from the slope of loading curve and sample size. The fractured strength is derived by the critical load when the testing sample is failed. To verify the feasibility and reliability of this suggested method, typical brittle materials, including glass, coarse Al2O3 and fine ZrO2 ceramic, were used as the testing samples. The measured elastic modulus and strength obtained from this method at room temperature to 1300 oC agreed well with those from conventional testing methods.

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Periodical:

Advanced Materials Research (Volume 177)

Pages:

114-117

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.177.114

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Online since:

December 2010

Authors:

De Tian Wan, Yi Wang Bao, Xiao Gen Liu, Hua Zhao, Li Tian

Keywords:

Ceramic, Elastic Modulus, Glass, Notched Ring Sample, Strength

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