The validation of a ball-on-ring, equibiaxial flexural strength method to obtain the transverse rupture strength (TRS) of right cylindrical ceramic specimens was performed in this study. Validation of the test method was achieved using commercially available engineered high purity alumina disks and finite element (FE) model analysis. The validated fixture was then used to obtain the TRS and Weibull statistical analysis of MgOpartially stabilized zirconia (MSZ) and Y 2 O 3-partially stabilized zirconia (YSZ) ceramic disks. TRS data for alumina, MSZ, and YSZ agreed with the TRS values reported in the literature. A statistically relevant number of samples (N>30) for each material were tested to allow for a Weibull statistical analysis. Weibull parameters for these materials were within the expected values for engineered ceramics. The characteristic strength for alumina, MSZ, and YSZ were determined to be 289 MPa, 786 MPa, and 814 MPa, respectively. The Weibull modulus was determined between 10-25 for each material, which is typical of engineered ceramics. In addition, Accepted Article This article is protected by copyright. All rights reserved FE model results were in close agreement with experimental fracture values for the three ceramic materials tested in this study.
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